Overview

overview

10

Static

static

10

f386b6a1a4...6b.exe

windows7-x64

10

f386b6a1a4...6b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f386b6a1a42d356dc069ae5aa5cf827687b82902ad4cd2cbfc33fad86e32c86b

  • Size

    661KB

  • Sample

    221202-ekl42sbg25

  • MD5

    6ea15a00eee5168a3b36a60833460951

  • SHA1

    fd9698312c7564c08420f27f4936cfc65e8580fc

  • SHA256

    f386b6a1a42d356dc069ae5aa5cf827687b82902ad4cd2cbfc33fad86e32c86b

  • SHA512

    8d4d7d18bf980a41ecdaeaed7706d75e1333eddd443cb5f0226a029b46a19865c462bd8785d2d9efe47c387f1122148a748533bcfe37b71234ef8e94a6df47a9

  • SSDEEP

    12288:IXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452Uf:unAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jv

Score
10/10
darkcometzombiepersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Zombie

C2

nahasamapetilan.zapto.org:5000

nahasamapetilan.zapto.org:5001

nahasamapetilan.zapto.org:5002

nahasamapetilan.zapto.org:5003

nahasamapetilan.zapto.org:5004

nahasamapetilan.zapto.org:5005
Mutex

DC_MUTEX-NHLL5VX

Attributes
  • InstallPath

    SounDrivers\WinSounds.exe

  • gencode

    UqEe6BPFAJwd

  • install

    true

  • offline_keylogger

    true

  • password

    mohamed

  • persistence

    true

  • reg_key

    SoundDrivers

Targets

    • Target

      f386b6a1a42d356dc069ae5aa5cf827687b82902ad4cd2cbfc33fad86e32c86b

    • Size

      661KB

    • MD5

      6ea15a00eee5168a3b36a60833460951

    • SHA1

      fd9698312c7564c08420f27f4936cfc65e8580fc

    • SHA256

      f386b6a1a42d356dc069ae5aa5cf827687b82902ad4cd2cbfc33fad86e32c86b

    • SHA512

      8d4d7d18bf980a41ecdaeaed7706d75e1333eddd443cb5f0226a029b46a19865c462bd8785d2d9efe47c387f1122148a748533bcfe37b71234ef8e94a6df47a9

    • SSDEEP

      12288:IXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452Uf:unAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jv

    Score
    10/10
    darkcometzombiepersistencerattrojan

    • 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

    • Drops file in System32 directory

    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

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks