darkcomet | ca3d5ed5e649e04c111100615ca969a8e9e88f0bb2afce3056ba69db7fb07b4f | Triage

Sharing

General

Target

f724bf54d8a134608ea974d325c29684_JaffaCakes118
Size

712KB
Sample

241216-ea7yrssnat
MD5

f724bf54d8a134608ea974d325c29684
SHA1

a8525920fc6704e0dc77fd4f3072f77d3825aef3
SHA256

ca3d5ed5e649e04c111100615ca969a8e9e88f0bb2afce3056ba69db7fb07b4f
SHA512

a8cb62cfce1e3b9cfd77d7dda94ed92dd17336cbee0d4615221aa5aa84a07a9241809f672183cbf1d54d7bec4764bffed27aecddce4bec2b25b56852bdf87685
SSDEEP

12288:4zHS+RxBUkcbxBwfKNClLBpvM7SYUCJgB8F8JBS9y3YW6YraEZcu:MRxBUk4wfKNCLpXYNg88J4BW3a9u

Score

10^/10

darkcomet discovery evasion persistence rat trojan

Malware Config

Targets

- Target
  
  f724bf54d8a134608ea974d325c29684_JaffaCakes118
- Size
  
  712KB
- MD5
  
  f724bf54d8a134608ea974d325c29684
- SHA1
  
  a8525920fc6704e0dc77fd4f3072f77d3825aef3
- SHA256
  
  ca3d5ed5e649e04c111100615ca969a8e9e88f0bb2afce3056ba69db7fb07b4f
- SHA512
  
  a8cb62cfce1e3b9cfd77d7dda94ed92dd17336cbee0d4615221aa5aa84a07a9241809f672183cbf1d54d7bec4764bffed27aecddce4bec2b25b56852bdf87685
- SSDEEP
  
  12288:4zHS+RxBUkcbxBwfKNClLBpvM7SYUCJgB8F8JBS9y3YW6YraEZcu:MRxBUk4wfKNCLpXYNg88J4BW3a9u
Score

10^/10

darkcomet discovery evasion persistence rat trojan
- Darkcomet
  DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
  trojan rat darkcomet
- Darkcomet family
  darkcomet
- Modifies WinLogon for persistence
  persistence
- Modifies firewall policy service
  evasion
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
  persistence
- Drops file in System32 directory
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Create or Modify System Process

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Create or Modify System Process

Windows Service

Defense Evasion

Impair Defenses

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

darkcometdiscoveryevasionpersistencerattrojan

behavioral2

darkcometdiscoveryevasionpersistencerattrojan