Overview

overview

10

Static

static

9802c5876d...61.exe

windows7-x64

10

9802c5876d...61.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661

  • Size

    579KB

  • Sample

    221003-tld76aebb9

  • MD5

    68a54e3adbf81b3b808c11da8ce7c68a

  • SHA1

    c7e1f952fd870d31508e69e41adc9f625781e34e

  • SHA256

    9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661

  • SHA512

    9ccfbf2dacf6994c0f87e1fb32571c8e50085cd10e14860684e2ea421dd4ebd59884c5a5d6fe98fdee22ddd8e89c40e4962f776032dc730d0f163a6bdf3c808d

  • SSDEEP

    12288:nVDHFNzdkfqQNQECtK/lGRgOUqmq9kR6lhKXrJjpfmOnX/M:VDHFNBkyQNQ9tK/cRgOnmq9g6QXnE

Score
10/10
darkcometguest16persistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

alankaboot.no-ip.biz:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    JbvaliXHAQvv

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661

    • Size

      579KB

    • MD5

      68a54e3adbf81b3b808c11da8ce7c68a

    • SHA1

      c7e1f952fd870d31508e69e41adc9f625781e34e

    • SHA256

      9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661

    • SHA512

      9ccfbf2dacf6994c0f87e1fb32571c8e50085cd10e14860684e2ea421dd4ebd59884c5a5d6fe98fdee22ddd8e89c40e4962f776032dc730d0f163a6bdf3c808d

    • SSDEEP

      12288:nVDHFNzdkfqQNQECtK/lGRgOUqmq9kR6lhKXrJjpfmOnX/M:VDHFNBkyQNQ9tK/cRgOnmq9g6QXnE

    Score
    10/10
    darkcometguest16persistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks