Overview

overview

10

Static

static

10

b12ebd9263...e7.exe

windows7_x64

10

b12ebd9263...e7.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    b12ebd9263108e9344610b6f3b458744f9dd1bc365bbf72b753a4d2e459587e7

  • Size

    252KB

  • Sample

    220520-3nsyrscbcr

  • MD5

    b780e5c2aa4465ca48aa5f41ce4adf7f

  • SHA1

    efda9481424c4d88f2c4a78742db1cf5b05ff8a2

  • SHA256

    b12ebd9263108e9344610b6f3b458744f9dd1bc365bbf72b753a4d2e459587e7

  • SHA512

    1bfe4bcd73cb1ce0681da7e6fc58757b1e5c024d3cffbbc4d58f8976d724b9850ab9b0445541d6f114109f74d683d73836a3c9f511ee7ad54a9b8cb31b0d9367

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

kamshotivanich.ddns.net:1604

kamshotivanich.ddns.net:27015
Mutex

DC_MUTEX-V8J7YF5

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    sBdxvB5tQ4PB

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      b12ebd9263108e9344610b6f3b458744f9dd1bc365bbf72b753a4d2e459587e7

    • Size

      252KB

    • MD5

      b780e5c2aa4465ca48aa5f41ce4adf7f

    • SHA1

      efda9481424c4d88f2c4a78742db1cf5b05ff8a2

    • SHA256

      b12ebd9263108e9344610b6f3b458744f9dd1bc365bbf72b753a4d2e459587e7

    • SHA512

      1bfe4bcd73cb1ce0681da7e6fc58757b1e5c024d3cffbbc4d58f8976d724b9850ab9b0445541d6f114109f74d683d73836a3c9f511ee7ad54a9b8cb31b0d9367

    Score
    10/10
    darkcometevasionpersistencerattrojanupx

    • 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.

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    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