Overview

overview

10

Static

static

8

c97cf0d0a0...08.exe

windows7_x64

10

c97cf0d0a0...08.exe

windows10_x64

10

Sharing

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General

  • Target

    c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

  • Size

    252KB

  • Sample

    201106-b4nb3r9496

  • MD5

    9d1f92ac5af5eff6e517e587e1e8278b

  • SHA1

    732ca21d250323be7b2ef24c3c335005e839b196

  • SHA256

    c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

  • SHA512

    715a7cdb9f2270c447aae9df60be3a2ace48fa276da2ef09161b558b255434e74f5fb3c423b82813c1574bd37e2645ea1cea3375bb613c2b6c7064ed95478063

Score
10/10
darkcometguest16persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ximer2020.ddns.net:1604

Mutex

DC_MUTEX-4U0HFC0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    aDFqoxfKfrcR

  • install

    true

  • offline_keylogger

    true

  • password

    82121020202222

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

    • Size

      252KB

    • MD5

      9d1f92ac5af5eff6e517e587e1e8278b

    • SHA1

      732ca21d250323be7b2ef24c3c335005e839b196

    • SHA256

      c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

    • SHA512

      715a7cdb9f2270c447aae9df60be3a2ace48fa276da2ef09161b558b255434e74f5fb3c423b82813c1574bd37e2645ea1cea3375bb613c2b6c7064ed95478063

    Score
    10/10
    darkcometpersistencerattrojanupxguest16

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • 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

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks