Overview

overview

10

Static

static

10

ea08892b4d...18.exe

windows7-x64

10

ea08892b4d...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ea08892b4db745c9fe47e488ff859e44_JaffaCakes118

  • Size

    817KB

  • Sample

    241213-fst1as1kfl

  • MD5

    ea08892b4db745c9fe47e488ff859e44

  • SHA1

    36d0b4980e40f343c272232f21ce012162cb3da0

  • SHA256

    62ba430c840b1ddbf9643a897f29c0af0dfda8f14878a0a825f8e49058ef2f6c

  • SHA512

    6009341d82b0507170798d87ebd21f541a71914530f159a0052547d8210af4c1fc600f8ba94b8f55c28b8747f76ff04bbc0b359b290b6ca996dcb82dfe8db9fd

  • SSDEEP

    12288:b9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKJfSnk:JAQ6Zx9cxTmOrucTIEFSpOGKfok

Score
10/10
darkcometdiscoveryevasionpersistencerattrojan

Malware Config

Targets

    • Target

      ea08892b4db745c9fe47e488ff859e44_JaffaCakes118

    • Size

      817KB

    • MD5

      ea08892b4db745c9fe47e488ff859e44

    • SHA1

      36d0b4980e40f343c272232f21ce012162cb3da0

    • SHA256

      62ba430c840b1ddbf9643a897f29c0af0dfda8f14878a0a825f8e49058ef2f6c

    • SHA512

      6009341d82b0507170798d87ebd21f541a71914530f159a0052547d8210af4c1fc600f8ba94b8f55c28b8747f76ff04bbc0b359b290b6ca996dcb82dfe8db9fd

    • SSDEEP

      12288:b9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKJfSnk:JAQ6Zx9cxTmOrucTIEFSpOGKfok

    Score
    10/10
    darkcometdiscoveryevasionpersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks