Overview

overview

10

Static

static

3

f35726b93b...fN.exe

windows7-x64

10

f35726b93b...fN.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f35726b93b4aa3afb69cce8c78ed32ed1fc49ba0e6b47d559e749c47ed0d1affN.exe

  • Size

    733KB

  • Sample

    241201-qymtaasngv

  • MD5

    d8f15903fb48396c14f64cc0c57e94d0

  • SHA1

    c0826f20b828c7551476f489064b4b399847fd2e

  • SHA256

    f35726b93b4aa3afb69cce8c78ed32ed1fc49ba0e6b47d559e749c47ed0d1aff

  • SHA512

    d970334182d228816fcfaadda16f0a011c721847e690378a1795e3744eff944d655bc28f8c978732edb49227ffd99eabe478879e42d54309b42219dfedffeb92

  • SSDEEP

    12288:S6eYivcn72/pSoWPHedx/GltAzYMcxbfWXWadi+q/pTILq/tgE8inyA0BSv/P34:S6Dn720HYGltA0McxWV0/pT7gLin1r3I

Score
10/10
darkcometguest16discoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-A40US5B

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    0TpGG0wc78R6

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      f35726b93b4aa3afb69cce8c78ed32ed1fc49ba0e6b47d559e749c47ed0d1affN.exe

    • Size

      733KB

    • MD5

      d8f15903fb48396c14f64cc0c57e94d0

    • SHA1

      c0826f20b828c7551476f489064b4b399847fd2e

    • SHA256

      f35726b93b4aa3afb69cce8c78ed32ed1fc49ba0e6b47d559e749c47ed0d1aff

    • SHA512

      d970334182d228816fcfaadda16f0a011c721847e690378a1795e3744eff944d655bc28f8c978732edb49227ffd99eabe478879e42d54309b42219dfedffeb92

    • SSDEEP

      12288:S6eYivcn72/pSoWPHedx/GltAzYMcxbfWXWadi+q/pTILq/tgE8inyA0BSv/P34:S6Dn720HYGltA0McxWV0/pT7gLin1r3I

    Score
    10/10
    darkcometguest16discoveryevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • 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

1
T1543

Windows Service

1
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

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks