Overview

overview

10

Static

static

10

bef9fe00e4...e9.exe

windows7-x64

10

bef9fe00e4...e9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bef9fe00e494e887578ae0d9053e115bacb63c80b6cf6e6037b2441305c88ae9

  • Size

    690KB

  • Sample

    221107-tfr7tsehg6

  • MD5

    2461a56cc107723c2bbbf1ca4531cda0

  • SHA1

    c995b848906006b28a87ad7e6eeda3e7009d7d6d

  • SHA256

    bef9fe00e494e887578ae0d9053e115bacb63c80b6cf6e6037b2441305c88ae9

  • SHA512

    ec00f0bed2ac52f374c2e84bcfa6cdf990ed7d02d8ede549e69c2c85b8d57858863f65753cc24a3e719597d3d14f5361a92aa1eb80660e85fbbe0a5edb5c4417

  • SSDEEP

    12288:p9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hi8:zZ1xuVVjfFoynPaVBUR8f+kN10EBR

Score
10/10
darkcomethackevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Hack

C2

masakalasosas.no-ip.biz:1604

Mutex

DC_MUTEX-WWW0WYT

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    lUw27RbiEGYV

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundl32

Targets

    • Target

      bef9fe00e494e887578ae0d9053e115bacb63c80b6cf6e6037b2441305c88ae9

    • Size

      690KB

    • MD5

      2461a56cc107723c2bbbf1ca4531cda0

    • SHA1

      c995b848906006b28a87ad7e6eeda3e7009d7d6d

    • SHA256

      bef9fe00e494e887578ae0d9053e115bacb63c80b6cf6e6037b2441305c88ae9

    • SHA512

      ec00f0bed2ac52f374c2e84bcfa6cdf990ed7d02d8ede549e69c2c85b8d57858863f65753cc24a3e719597d3d14f5361a92aa1eb80660e85fbbe0a5edb5c4417

    • SSDEEP

      12288:p9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hi8:zZ1xuVVjfFoynPaVBUR8f+kN10EBR

    Score
    10/10
    darkcomethackevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • 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

    • Executes dropped EXE

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • 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

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks