Overview

overview

10

Static

static

b3ec26ebeb...74.exe

windows7-x64

10

b3ec26ebeb...74.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b3ec26ebeb99eebb609e7355f883c41083fd9789cc63b5e166696bfc39a82374

  • Size

    804KB

  • Sample

    221130-3fnn3sed44

  • MD5

    07eb78fa503defba29767d5390f3c65c

  • SHA1

    b3e364a5cb9bb72882d806b11ac47970bbcf0285

  • SHA256

    b3ec26ebeb99eebb609e7355f883c41083fd9789cc63b5e166696bfc39a82374

  • SHA512

    d82a085570531be871900f408e7cf134c7222c677afce474d8b747796753a8b681f3fb632da1067ec8187b1d84556239c9e0f466945150c2318e870f188218d8

  • SSDEEP

    24576:tzzKMPfk5JTkaMfV4Ro23aiSBEs8iNQT2r:RzKqf6k5apKiSBHzr

Score
10/10
darkcometcodevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

COD

C2

krexsuz.no-ip.org:1604

Mutex

DC_MUTEX-P5HD0ST

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    cC7w2LEmENif

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      b3ec26ebeb99eebb609e7355f883c41083fd9789cc63b5e166696bfc39a82374

    • Size

      804KB

    • MD5

      07eb78fa503defba29767d5390f3c65c

    • SHA1

      b3e364a5cb9bb72882d806b11ac47970bbcf0285

    • SHA256

      b3ec26ebeb99eebb609e7355f883c41083fd9789cc63b5e166696bfc39a82374

    • SHA512

      d82a085570531be871900f408e7cf134c7222c677afce474d8b747796753a8b681f3fb632da1067ec8187b1d84556239c9e0f466945150c2318e870f188218d8

    • SSDEEP

      24576:tzzKMPfk5JTkaMfV4Ro23aiSBEs8iNQT2r:RzKqf6k5apKiSBHzr

    Score
    10/10
    darkcometcodevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • 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

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks