Karamanak

Overview

Executive Summary

Infection Vector and Technical Capabilities

• Deep Cover Surveillance: The malware is designed for long-term espionage. It features advanced keylogging, desktop video recording (VNC capabilities), and audio capture. The attackers use these tools to silently study the bank's internal procedures, administrative workflows, and SWIFT transfer protocols for months.
• Lateral Movement: Karamanak utilizes built-in tools and legitimate administrative utilities (like PsExec and PowerShell) to move laterally from the initial point of compromise to high-value targets, such as database servers, SWIFT terminals, or ATM management controllers.
• Financial Theft: Once the attackers understand the workflows, they use the RAT's remote control capabilities to initiate fraudulent SWIFT transfers, manipulate account balances, or send commands directly to ATMs to dispense cash (jackpotting).

Threat Assessment

Incident Response and Remediation

• Enterprise Incident Response: Standard IT remediation is insufficient. You must immediately engage specialized, third-party Incident Response (IR) and forensic firms experienced in handling APT intrusions and financial sector compromises.
• Total Network Lockdown: All critical financial systems (SWIFT, payment gateways, Active Directory Domain Controllers) must be tightly monitored and potentially isolated. Comprehensive hunting for lateral movement artifacts (compromised service accounts, persistent backdoors) must be executed enterprise-wide.
• Credential Eviction: A complete, coordinated reset of all enterprise credentials (especially Domain Admins and service accounts) must be performed simultaneously to evict the attackers, followed by a total rebuild of the compromised infrastructure.

Known aliases

Threat reports may refer to this family under multiple names:

• Backdoor.Carbanak
• Trojan.Karamanak
• APT.FIN7.Carbanak

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:

• T1056.001: Implement Endpoint Detection and Response (EDR) to monitor for suspicious API calls related to keystroke interception. Enforce Multi-Factor Authentication (MFA) to render stolen passwords useless.
• T1056.002: Monitor for unauthorized keylogging, screen capturing, or web browser API hooking. Deploy EDR to detect API hooking.

MITRE D3FEND™ Defensive Countermeasures

Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):

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:

rule MALWARE_WIN_KARAMANAK_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Karamanak"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "karamanak" ascii wide nocase
        $s2 = "backdoor.carbanak" ascii wide nocase
        $s3 = "trojan.karamanak" ascii wide nocase
        $s4 = "apt.fin7.carbanak" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

title: SystemHelpDesk Detection - Karamanak (Trojan) Execution & Triage
id: 91fc6bcb-0b75-579c-bf1c-4469824b0587
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Karamanak malware family. Detects suspicious execution from temporary user
  directories with hidden window flags and background transfer utilities.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/karamanak
- https://malware-families-catalog.systemhelpdesk.com/defensive/downloader-dropper-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.trojan
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1056_001
- attack.t1056_002
- attack.t1055
- attack.t1543_003
- attack.t1021_002
logsource:
  category: process_creation
  product: windows
detection:
  selection_process:
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - \cscript.exe
    - \wscript.exe
    CommandLine|contains:
    - AppData\Local\Temp
    - -WindowStyle Hidden
    - /e:jscript
    - bitsadmin /transfer
  condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: medium

rule MALWARE_WIN_KARAMANAK_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Karamanak 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 = "karamanak" 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.

1. Sever network connectivity for the flagged endpoint to terminate persistent command-and-control (C2) communication channels and stop Karamanak from retrieving secondary stage payloads.
2. Capture process memory triage to detect and terminate malicious threads injected by Karamanak into legitimate system processes such as explorer.exe or svchost.exe.
3. Audit Windows Registry Run keys (HKCU\Software\Microsoft\Windows\CurrentVersion\Run) and Task Scheduler entries to locate and purge Karamanak persistence hooks.
4. Deploy updated enterprise EDR detection signatures and conduct an out-of-band endpoint scan to isolate dropped binaries and staged payloads.
5. Rotate all credentials, domain user passwords, and session cookies active on the system during the Karamanak execution timeframe.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

1. Do not assume the incident is resolved simply because an antivirus tool removed the initial Karamanak dropper; always verify that secondary payloads and persistence hooks have been eradicated.
2. Avoid logging in with Domain Admin or privileged credentials on a machine suspected of running Karamanak until memory triage is complete.
3. Do not delay host isolation; automated lateral movement and credential dumping can occur within minutes of initial execution.

References & External Analysis

• Search "karamanak" on VirusTotal (External Analysis)
• Search "karamanak" on Any.Run (Sandbox Sandbox)
• Search "karamanak" on MalwareBazaar (Malware Samples)

Frequently Asked Questions

Related Threats (Category: Trojan)

Explore other documented threats in the same operational category:

• Ponmocup
• Spamer
• Defaulttab
• Netpass
• Delf
• Vkhost
• Dorifel
• Murofet

Machine-readable

Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/karamanak.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.