Overview

overview

10

Static

static

c704c4d969...e1.exe

windows7-x64

10

c704c4d969...e1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c704c4d969efd8e763ca9652d892da7c920001486bdf25c86a890166a0990ce1

  • Size

    329KB

  • Sample

    221125-ykhw6seb6t

  • MD5

    077feedaf2385940d6cb6c485254592f

  • SHA1

    105d08d7b083f2204df82ab591c69ebeeddb4299

  • SHA256

    c704c4d969efd8e763ca9652d892da7c920001486bdf25c86a890166a0990ce1

  • SHA512

    bb78dac12ccc5e84feed1849eb4433ae0850ac71b3df175613dc4bd0fcd520664cdf052345653bc8d48645179d269c3e55adb057f884947abb2e69252221562f

  • SSDEEP

    6144:4Qg2zQOG2voQTgbCHEE/fNBLdT9/zxW4q1w12R8OUkYO/WJB:4QdG2wQTgblE3NldT9MZy12RsOk

Score
10/10
darkcomethackerevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Hacker

C2

cpuexplorerwindows.no-ip.org:1000

Mutex

DC_MUTEX-25175UU

Attributes
  • InstallPath

    explorer\msdcsc.exe

  • gencode

    J2mfaePjL8uT

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      c704c4d969efd8e763ca9652d892da7c920001486bdf25c86a890166a0990ce1

    • Size

      329KB

    • MD5

      077feedaf2385940d6cb6c485254592f

    • SHA1

      105d08d7b083f2204df82ab591c69ebeeddb4299

    • SHA256

      c704c4d969efd8e763ca9652d892da7c920001486bdf25c86a890166a0990ce1

    • SHA512

      bb78dac12ccc5e84feed1849eb4433ae0850ac71b3df175613dc4bd0fcd520664cdf052345653bc8d48645179d269c3e55adb057f884947abb2e69252221562f

    • SSDEEP

      6144:4Qg2zQOG2voQTgbCHEE/fNBLdT9/zxW4q1w12R8OUkYO/WJB:4QdG2wQTgblE3NldT9MZy12RsOk

    Score
    10/10
    darkcomethackerevasionpersistencerattrojanupx

    • 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

    • Checks computer location settings

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

    • 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

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks