Overview

overview

10

Static

static

c4a3eb0612...00.exe

windows7-x64

10

c4a3eb0612...00.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c4a3eb0612d558ec941be28a8a4b7734a822c5659db9f840a57567a971ffc500

  • Size

    347KB

  • Sample

    221204-v8trssbd53

  • MD5

    eefcea17c245d722fcfe515970a99b24

  • SHA1

    100f1fa0224e1ae4b79fb661e29a7b22cf0e47fa

  • SHA256

    c4a3eb0612d558ec941be28a8a4b7734a822c5659db9f840a57567a971ffc500

  • SHA512

    23c08bc35f8e3c6e28173f0e6eadabe11638e40c3ec68ef0a6448a70739d340d29a3c3b75f887ed7aa807cfe40cc78b34c1f040fffa51cea87ba14553d4e08bb

  • SSDEEP

    6144:CUPCHaSrGCFGMQZhKYWqdRBYn58JOBGmtMCANkRfX90OO1+JC5mfT4Neu:G62GiGMBHqhYOJONtMCesfXlKXk7A

Score
10/10
darkcomet13.07.12 crypterpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

13.07.12 Crypter

C2

leetaka1337.no-ip.org:1604

Mutex

DC_MUTEX-JFX5RP1

Attributes
  • InstallPath

    MSDCSC\winhost.exe

  • gencode

    lCnq6VNbar2M

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      c4a3eb0612d558ec941be28a8a4b7734a822c5659db9f840a57567a971ffc500

    • Size

      347KB

    • MD5

      eefcea17c245d722fcfe515970a99b24

    • SHA1

      100f1fa0224e1ae4b79fb661e29a7b22cf0e47fa

    • SHA256

      c4a3eb0612d558ec941be28a8a4b7734a822c5659db9f840a57567a971ffc500

    • SHA512

      23c08bc35f8e3c6e28173f0e6eadabe11638e40c3ec68ef0a6448a70739d340d29a3c3b75f887ed7aa807cfe40cc78b34c1f040fffa51cea87ba14553d4e08bb

    • SSDEEP

      6144:CUPCHaSrGCFGMQZhKYWqdRBYn58JOBGmtMCANkRfX90OO1+JC5mfT4Neu:G62GiGMBHqhYOJONtMCesfXlKXk7A

    Score
    10/10
    darkcomet13.07.12 crypterpersistencerattrojanupx

    • 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.

    • Loads dropped DLL

    • 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

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