Overview

overview

10

Static

static

a33cbd49aa...4d.exe

windows7-x64

1

a33cbd49aa...4d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a33cbd49aa35873101d5cac1877e07d0232af35799e5f63ab75620815584964d

  • Size

    816KB

  • Sample

    221003-q8mw2aaad7

  • MD5

    4f6043484f70bd54528c9193bcea630b

  • SHA1

    a325f7a8fc036993a4e50d2aabdf677d46f5c193

  • SHA256

    a33cbd49aa35873101d5cac1877e07d0232af35799e5f63ab75620815584964d

  • SHA512

    4eced6cd643f9758e1e1c5f227c3471155a935feaff0e9adbcd4c8457c7a409ae3eab5102a6f5de01317da2edd3b44243fd49663a146bd7d5133c35e3dec0390

  • SSDEEP

    24576:BJux1FoXBnpw8bzRhObDkvEbSDKC2UmKO7ZN/W:OxfYBny0zD0DkvG8mKQtW

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

linuxer.no-ip.org:81

linuxer.no-ip.org:90

linuxer.no-ip.org:100

linuxer.no-ip.org:80

linuxer.no-ip.org:443
Mutex

DC_MUTEX-MNKECC8

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    vk5iaHrP4wKn

  • install

    true

  • offline_keylogger

    true

  • password

    study!@#

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      a33cbd49aa35873101d5cac1877e07d0232af35799e5f63ab75620815584964d

    • Size

      816KB

    • MD5

      4f6043484f70bd54528c9193bcea630b

    • SHA1

      a325f7a8fc036993a4e50d2aabdf677d46f5c193

    • SHA256

      a33cbd49aa35873101d5cac1877e07d0232af35799e5f63ab75620815584964d

    • SHA512

      4eced6cd643f9758e1e1c5f227c3471155a935feaff0e9adbcd4c8457c7a409ae3eab5102a6f5de01317da2edd3b44243fd49663a146bd7d5133c35e3dec0390

    • SSDEEP

      24576:BJux1FoXBnpw8bzRhObDkvEbSDKC2UmKO7ZN/W:OxfYBny0zD0DkvG8mKQtW

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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.

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

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