Overview

overview

10

Static

static

8

bcd956aebc...42.exe

windows7_x64

10

bcd956aebc...42.exe

windows10_x64

10

Sharing

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General

  • Target

    bcd956aebc76db25ef4891d1b85eaf7151dee287c61637d59aa7c071e258f742

  • Size

    251KB

  • Sample

    201105-hezy4h6tz2

  • MD5

    42c4dc5105eff86f69d8c3d0d1e9e773

  • SHA1

    a4c1c4f627ac87cb180f3e70751bf525ef658def

  • SHA256

    bcd956aebc76db25ef4891d1b85eaf7151dee287c61637d59aa7c071e258f742

  • SHA512

    8017b10da3f275a719dee0d7cdea1fc066af93a99748501d4d2519827f651d1dd7dbab5bab8f8ed268ef5cb72573c6f95a0e77e4e5e0af68a08a524feab8d91f

Score
10/10
darkcometuserevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

User

C2

tarkovbanned.hopto.org:1337

Mutex

DC_MUTEX-BBUXYWX

Attributes
  • InstallPath

    nVidiaExpe\nvmdch.exe

  • gencode

    bZniVw7x2f7P

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      bcd956aebc76db25ef4891d1b85eaf7151dee287c61637d59aa7c071e258f742

    • Size

      251KB

    • MD5

      42c4dc5105eff86f69d8c3d0d1e9e773

    • SHA1

      a4c1c4f627ac87cb180f3e70751bf525ef658def

    • SHA256

      bcd956aebc76db25ef4891d1b85eaf7151dee287c61637d59aa7c071e258f742

    • SHA512

      8017b10da3f275a719dee0d7cdea1fc066af93a99748501d4d2519827f651d1dd7dbab5bab8f8ed268ef5cb72573c6f95a0e77e4e5e0af68a08a524feab8d91f

    Score
    10/10
    darkcometuserevasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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

    • 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

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