Overview

overview

10

Static

static

8

2171bac551...5a.exe

windows7_x64

10

2171bac551...5a.exe

windows10_x64

10

Sharing

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General

  • Target

    2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

  • Size

    252KB

  • Sample

    201108-nzjzepz2en

  • MD5

    a0303b31a98b225c23583db05b31bb78

  • SHA1

    1d2843958d2fb7873763be62df48a4ad9d281e0a

  • SHA256

    2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

  • SHA512

    b0ea5c2f2b67412951a825a56e36cf4e749843bfbae4f86588cc3a49203886c399d2a040a83db74ccf79b13fbbc3ccd398b916ef1bee2ae75ca5bfade152729b

Score
10/10
darkcometguest16persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ximer2020.ddns.net:1604

Mutex

DC_MUTEX-4U0HFC0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    aDFqoxfKfrcR

  • install

    true

  • offline_keylogger

    true

  • password

    82121020202222

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

    • Size

      252KB

    • MD5

      a0303b31a98b225c23583db05b31bb78

    • SHA1

      1d2843958d2fb7873763be62df48a4ad9d281e0a

    • SHA256

      2171bac5512cef55ce1ffcf96bf1395d9a826f29bcff90a6c4cfe794d615575a

    • SHA512

      b0ea5c2f2b67412951a825a56e36cf4e749843bfbae4f86588cc3a49203886c399d2a040a83db74ccf79b13fbbc3ccd398b916ef1bee2ae75ca5bfade152729b

    Score
    10/10
    darkcometpersistencerattrojanupxguest16

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Deletes itself

    • 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