Overview

overview

10

Static

static

9bd407c773...77.exe

windows7-x64

10

9bd407c773...77.exe

windows10-2004-x64

1

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General

  • Target

    9bd407c77373ec66f798ade73998efcaab8b4f5cd8ccadb26ae9efd81d362b77

  • Size

    416KB

  • Sample

    221201-aw7gxahd44

  • MD5

    c64445ea610f9f6dd341268ce5851357

  • SHA1

    2ae1bd7236e343bd94aef8abcdeea88dbb824ed6

  • SHA256

    9bd407c77373ec66f798ade73998efcaab8b4f5cd8ccadb26ae9efd81d362b77

  • SHA512

    6019002b586470d1d53f0e8306b9dec82f4dee22188413b29683677119b8ee2b0d012e209108f1c5cf35996bdca9a4508c81ff140be8270fea6327739dbef703

  • SSDEEP

    6144:bRFKlSlqxO5s+Mv2gbyzV/d5prKrLfvIe2Vlsyd/sLn5TG5B:KlSl2oIvHi/d5MMr5d/sLhG5B

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

waliu.no-ip.org:1604

Mutex

DC_MUTEX-NG6R1SJ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    fgSw505LKidg

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      9bd407c77373ec66f798ade73998efcaab8b4f5cd8ccadb26ae9efd81d362b77

    • Size

      416KB

    • MD5

      c64445ea610f9f6dd341268ce5851357

    • SHA1

      2ae1bd7236e343bd94aef8abcdeea88dbb824ed6

    • SHA256

      9bd407c77373ec66f798ade73998efcaab8b4f5cd8ccadb26ae9efd81d362b77

    • SHA512

      6019002b586470d1d53f0e8306b9dec82f4dee22188413b29683677119b8ee2b0d012e209108f1c5cf35996bdca9a4508c81ff140be8270fea6327739dbef703

    • SSDEEP

      6144:bRFKlSlqxO5s+Mv2gbyzV/d5prKrLfvIe2Vlsyd/sLn5TG5B:KlSl2oIvHi/d5MMr5d/sLhG5B

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • 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

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • UPX packed file

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

      upx

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

Hidden Files and Directories

2
T1158

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks