Overview

overview

10

Static

static

10

9261feab91...f7.exe

windows7-x64

10

9261feab91...f7.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9261feab91f00446a0442a4b995534c204dc90b2cdf7c59da6f6c15c229920f7

  • Size

    385KB

  • Sample

    221001-3t5vhscea3

  • MD5

    cd433e011e7459cfdd655a746091468d

  • SHA1

    9ec239c9f172811477a912e2eabdd2e5595309fd

  • SHA256

    9261feab91f00446a0442a4b995534c204dc90b2cdf7c59da6f6c15c229920f7

  • SHA512

    e068db8e49a4585686510cb845d5a31ea50f38478bef81bf0c62818cbe17273ec7ec17fd7208a4ebe8687f50383d9323d5d00361483adbda7dd5393ba6680c25

  • SSDEEP

    6144:8cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PnLwtvDzbYgfmX4rFBgp1:8cWkbgTYWnYnt/IDYhP0pDPYYm66

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

megaserver9.ddns.net:1604

Mutex

DC_MUTEX-GSZE25Q

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Rc79eTyNGsqt

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      9261feab91f00446a0442a4b995534c204dc90b2cdf7c59da6f6c15c229920f7

    • Size

      385KB

    • MD5

      cd433e011e7459cfdd655a746091468d

    • SHA1

      9ec239c9f172811477a912e2eabdd2e5595309fd

    • SHA256

      9261feab91f00446a0442a4b995534c204dc90b2cdf7c59da6f6c15c229920f7

    • SHA512

      e068db8e49a4585686510cb845d5a31ea50f38478bef81bf0c62818cbe17273ec7ec17fd7208a4ebe8687f50383d9323d5d00361483adbda7dd5393ba6680c25

    • SSDEEP

      6144:8cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PnLwtvDzbYgfmX4rFBgp1:8cWkbgTYWnYnt/IDYhP0pDPYYm66

    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

    • 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