Overview

overview

10

Static

static

c45da0c022...48.exe

windows7-x64

1

c45da0c022...48.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    c45da0c02202b27f6aa1b71808c49c4c37e8f55ef476b602c2b2fcfe06c67d48

  • Size

    728KB

  • Sample

    221203-f89qpahd49

  • MD5

    e936ee9540a39e6f96544ceb64109d43

  • SHA1

    7009a12790c17f814fbd708acf05a7ccc3f46d9f

  • SHA256

    c45da0c02202b27f6aa1b71808c49c4c37e8f55ef476b602c2b2fcfe06c67d48

  • SHA512

    a6f69161adafd7b6c83feb60180a63f46b7092802e25251a3326dc7eea9f093c1ae056b225ee206c346bfad60731b3ebb55551b2ba9d3202214fdafd591b7a6d

  • SSDEEP

    12288:fQ9HfogpbIAUjLVfp5xyAVgDfT0INc7FcsduLIBjgKmFSKHW8HUaosrK:bgpbFUVfp5vQL/mmw1BjgKToUaosu

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

giox3.no-ip.biz:1993

Mutex

DC_MUTEX-6H6WXL4

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    XobFUkY25DbB

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      c45da0c02202b27f6aa1b71808c49c4c37e8f55ef476b602c2b2fcfe06c67d48

    • Size

      728KB

    • MD5

      e936ee9540a39e6f96544ceb64109d43

    • SHA1

      7009a12790c17f814fbd708acf05a7ccc3f46d9f

    • SHA256

      c45da0c02202b27f6aa1b71808c49c4c37e8f55ef476b602c2b2fcfe06c67d48

    • SHA512

      a6f69161adafd7b6c83feb60180a63f46b7092802e25251a3326dc7eea9f093c1ae056b225ee206c346bfad60731b3ebb55551b2ba9d3202214fdafd591b7a6d

    • SSDEEP

      12288:fQ9HfogpbIAUjLVfp5xyAVgDfT0INc7FcsduLIBjgKmFSKHW8HUaosrK:bgpbFUVfp5vQL/mmw1BjgKToUaosu

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy 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

    • Checks computer location settings

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

    • Windows security modification

      evasiontrojan

    • 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

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

2
T1089

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks