Sugar
Table of Contents
Overview
Sugar (tracked across cybersecurity threat intelligence feeds under aliases including Sugar Ransomware, Encoded01, and Ransom.Encoded01) is a Delphi-based Ransomware-as-a-Service (RaaS) operation first identified by Walmart security researchers in November 2021. Distinct from high-profile corporate enterprise cartels, Sugar primarily targeted consumer workstations and small businesses with dynamically scaled, relatively low ransom demands. Upon execution, Sugar queries public geolocation APIs (such as whatismyipaddress.com and ip2location.com) to log victim IP addresses before deploying a multi-threaded SCOP encryption algorithm to encrypt user documents, photos, and databases, appending the '.encoded01' extension. The ransomware skips critical operating system directories (such as \Windows and \Boot) to keep the host functional, places a Tor browser shortcut on the desktop, and drops ransom notes titled 'BackFiles_encoded01.txt' directing victims to dark web payment portals on sugarpanel.space that mirror the visual aesthetics of REvil and Cl0p.
Known aliases
Threat reports may refer to this family under multiple names:
Family Pedigree & Lineage
Malware authors regularly fork and iterate upon existing codebases. Observed upstream lineage and downstream variants for this family include:
Derived From / Upstream Ancestry: Commercial Delphi Ransomware Strains
Known Derivatives & Downstream Variants: Sugar.Encoded01 · Sugar.Raas
MITRE ATT&CK Techniques
Observed techniques used by this family, mapped to our technical analysis hubs and the official MITRE ATT&CK framework:
Tactical Mitigations
Based on the techniques used by this family, consider the following defensive strategies:
- T1059.003: Restrict execution of Windows Command Shell (cmd.exe) and block unauthorized batch scripts.
MITRE D3FEND™ Defensive Countermeasures
Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):
| D3FEND ID | Countermeasure Name | Tactic | Countered ATT&CK | Defensive Guidance |
|---|---|---|---|---|
D3-NDF | Network Data Filtering | Isolate | T1048 | Inspect non-standard port traffic and block unauthorized ICMP or DNS tunneling protocols at the network perimeter. |
D3-PBA | Process Spawn Analysis | Detect | T1059.003 | Inspect command-line arguments and anomalous parent-child relationships spawning from cmd.exe. |
D3-FAED | File Alteration Early Detection | Detect | T1486 | Deploy canary files and monitor mass rename/encryption I/O spikes to terminate ransomware threads immediately. |
D3-SPP | Service Protection Policies | Harden | T1489 | Configure strict DACLs on Windows Service Control Manager to prevent unauthorized termination of antivirus and backup services. |
D3-VSS | Volume Shadow & Snapshot Hardening | Harden | T1490 | Block execution of vssadmin.exe and wmic shadowcopy delete; maintain air-gapped immutable backup repositories. |
Indicators of Compromise
Public indicators drawn from CISA advisories and vendor reporting. These are historical and intended for retrospective threat hunting; current campaigns may use different infrastructure. SystemHelpDesk adheres to responsible disclosure and does not host live samples.
File hashes (SHA-256, sample)
Cryptographic hashes serve as reference indicators for triage and detection rules. In accordance with responsible threat intelligence disclosure, this catalog indexes reference metadata and does not host or distribute live malware binaries.
a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6a7
Delivery vectors
sugar_payload.exedocument_decryptor.exe
Persistence mechanisms
BackFiles_encoded01.txt%Desktop%\Tor Browser.lnk
Tiered Detection Rules (Cisco CAIRN Model)
Modern threat detection requires multi-layered rule engineering. We classify detections into three operational tiers based on signal fidelity:
Tier 1 Primitive Artifact Rule (Fast Triage)
Matches raw strings and file markers. Vulnerable to binary repacking and simple obfuscation.
rule MALWARE_WIN_SUGAR_T1_ARTIFACT {
meta:
description = "Tier 1 Primitive Artifact: Raw string matches for Sugar"
tier = "T1 - Primitive Artifact"
confidence = "Low-Medium (Fast Triage)"
author = "SystemHelpdesk Threat Research Desk"
date = "2026-10-14"
strings:
$s1 = "sugar" ascii wide nocase
$s2 = "ransom:win32/sugar" ascii wide nocase
$s3 = "ransom.encoded01" ascii wide nocase
$s4 = "win32/sugar" ascii wide nocase
$s5 = "encoded01" ascii wide nocase
condition:
uint16(0) == 0x5a4d and any of them
}
Tier 2 Behavioral Context Rule (Process Chains & Sigma)
Tracks parent-child process anomalies and suspicious scripting telemetry. Resilient against file renames.
title: SystemHelpDesk Detection - Sugar (Ransomware) Execution & Triage
id: 5496a1cb-47ca-545f-80bf-c24c5b70def0
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
with the Sugar malware family. Detects volume shadow copy deletion, boot status
tampering, and recovery inhibition characteristic of modern ransomware operations.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/sugar
- https://malware-families-catalog.systemhelpdesk.com/defensive/ransomware-protection
- https://malware-families-catalog.systemhelpdesk.com/
author: Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP
date: '2026-10-14'
modified: '2026-10-14'
tags:
- attack.ransomware
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1486
- attack.t1059_003
- attack.t1547_001
- attack.t1082
- attack.t1016
logsource:
category: process_creation
product: windows
detection:
selection_process:
Image|endswith:
- \vssadmin.exe
- \wmic.exe
- \wbadmin.exe
- \bcdedit.exe
CommandLine|contains:
- delete shadows
- shadowcopy delete
- resize shadowstorage
- recoveryenabled no
- ignoreallfailures
condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: critical
Tier 3 Attribution Fingerprint Rule (High Fidelity)
Deep signature matching distinctive operational fingerprints and payload characteristics.
rule MALWARE_WIN_SUGAR_T3_ATTRIBUTION {
meta:
description = "Tier 3 Attribution Fingerprint: Heuristic detection for Sugar tradecraft"
tier = "T3 - Attribution Fingerprint"
confidence = "High (Confirmed Family Signature)"
author = "SystemHelpdesk Threat Research Desk"
date = "2026-10-14"
strings:
// Core family identifier & heuristic payload signatures
$attrib_str = "sugar" ascii wide nocase
$pe_magic = "MZ" ascii
$net_marker = "http" ascii nocase
condition:
uint16(0) == 0x5a4d and ($attrib_str and $net_marker) and filesize < 15MB
}
Containment & Response Steps
Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.
- Immediately sever the infected endpoint and any mapped network segments from the corporate network to halt the spread of the encryption process.
- Do NOT reboot the machine immediately; capture a forensic RAM image to preserve memory, which may contain decryption keys or critical forensic data.
- Identify the initial access vector (e.g., compromised VPN credentials, phishing) and the lateral movement path to ensure the attacker is fully eradicated.
- Initiate disaster recovery protocols using offline, immutable backups; do not pay the ransom unless explicitly advised by law enforcement and legal counsel.
What to Avoid
Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.
- Do not connect any external drives or network shares to the infected machine, as the ransomware will immediately attempt to encrypt them.
- Avoid executing any files or attempting manual recovery without a forensic image; altering the disk state can permanently corrupt the encrypted data.
References & External Analysis
- BleepingComputer - Sugar Ransomware Analysis & Campaign Profile
- Malwarebytes Labs Threat Encyclopedia - Ransom.Encoded01 (Sugar)
- Search "sugar" on VirusTotal (External Analysis)
- Search "sugar" on Any.Run (Sandbox Sandbox)
- Search "sugar" on MalwareBazaar (Malware Samples)
Frequently Asked Questions
What is Sugar Ransomware (Encoded01)?
Sugar is a Delphi-based ransomware family that encrypts consumer and small business files with the .encoded01 extension.
Which encryption algorithm is utilized by Sugar?
Sugar uses the SCOP encryption algorithm paired with public/private keys to lock victim data.
How does Sugar determine the victim's ransom amount?
The ransom demand is dynamically calculated based on the total quantity and volume of files encrypted.
What ransom note is dropped by Sugar Ransomware?
It drops 'BackFiles_encoded01.txt' containing instructions and links to Tor negotiation portals.
How can victims recover from a Sugar infection?
Isolate the computer, terminate the ransomware process, clean malware binaries, and restore files from offline backups.
How do I remove the Sugar Ransomware from Windows?
Manual removal of Sugar is highly discouraged as it may leave persistence mechanisms intact. We recommend disconnecting the device from the internet and utilizing a professional incident response service or enterprise-grade EDR software to conduct a full forensic sweep.
Is Sugar a virus or a Ransomware?
Sugar is classified as a Ransomware. Unlike traditional viruses that infect files, modern malware like Sugar typically operates as a standalone payload designed to compromise systems, steal data, or deploy secondary stage implants.
What are the main symptoms of a Sugar infection?
Symptoms of Sugar can include unexpected system slowness, unauthorized outbound network traffic to unknown IP addresses, disabled security software, and suspicious background processes running from AppData or Temp directories.
Protect Your Network Against Ransomwares
Want to prevent Sugar and similar threats from compromising your organization? Read our comprehensive defensive guide: Ransomware Containment & Incident Response.
📣 Threat Intel Correction or Update?
Notice an outdated IOC, unlisted alias, or disputed attribution? Threat researchers are invited to propose an update on GitHub or contact the SystemHelpDesk research desk. All community revisions are credited in our public CHANGELOG.
Machine-readable
Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/sugar.json
Ecosystem & Interactive Environments
This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.