Overview

overview

10

Static

static

c682113153...0a.exe

windows7-x64

10

c682113153...0a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c6821131539c018d83a39e9524d869cd8ed204741d1cba8322daf4bd12a0350a

  • Size

    826KB

  • Sample

    221130-e8pj3sbe2w

  • MD5

    794ffbba826644ebaba383ce35ff6e4f

  • SHA1

    7103bddea0d9ed714c87cd4f2fcbe27fdb2c7073

  • SHA256

    c6821131539c018d83a39e9524d869cd8ed204741d1cba8322daf4bd12a0350a

  • SHA512

    6eb675ea4667d740d1c0735662a31991ceee7475147e6acd625d50829ac3aadec6a6ee98368ab290fe64ba20c02920470eeae8ec8ad2045174f217cd8bdfc4fe

  • SSDEEP

    12288:ZuoHPyzPHlRPoR/dnMMrmZOx8UAyDi0AaqUDMp9fUWuCQbhOmzXhWzqPxgJdnI/q:9yzP6dMMS4xF5KU8Crwmzne3nuTax

Score
10/10
darkcomethackerevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

hacker

C2

vrnl.no-ip.org:1604

Mutex

DC_MUTEX-X7L1TR6

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Pr1EvmBuofnm

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      c6821131539c018d83a39e9524d869cd8ed204741d1cba8322daf4bd12a0350a

    • Size

      826KB

    • MD5

      794ffbba826644ebaba383ce35ff6e4f

    • SHA1

      7103bddea0d9ed714c87cd4f2fcbe27fdb2c7073

    • SHA256

      c6821131539c018d83a39e9524d869cd8ed204741d1cba8322daf4bd12a0350a

    • SHA512

      6eb675ea4667d740d1c0735662a31991ceee7475147e6acd625d50829ac3aadec6a6ee98368ab290fe64ba20c02920470eeae8ec8ad2045174f217cd8bdfc4fe

    • SSDEEP

      12288:ZuoHPyzPHlRPoR/dnMMrmZOx8UAyDi0AaqUDMp9fUWuCQbhOmzXhWzqPxgJdnI/q:9yzP6dMMS4xF5KU8Crwmzne3nuTax

    Score
    10/10
    darkcomethackerevasionpersistencerattrojanupx

    • 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

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks