Overview

overview

10

Static

static

10

51e12e4db9...51.exe

windows7-x64

10

51e12e4db9...51.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    016d141ae10e0601b7e3eac1ab8e452c.bin

  • Size

    248KB

  • Sample

    230325-bcpnescd7v

  • MD5

    e7f5459e5f1bec9a47b8aeb52773b384

  • SHA1

    05027c3c6e091aa267706965f7e8ed9627dd129a

  • SHA256

    6e51958b6d8afac048bb3490993d02da276f51c773b566a9e729d29dd755b055

  • SHA512

    a7e2cbd53ce4a05dbda6dcbf82335141f1704b41a1f712b211d706f3643fa04f9c78f1cec680a333306ef7267e39885aff6add996b6ee7a39120815ca57f7804

  • SSDEEP

    6144:ABIBhU21jG6yJPugdEK6U5Adt+COuEsyefkKGBUvE:AOQ2NG6Xg96vJOurMnBUvE

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

kostya.ddns.net:1604

kostya.ddns.net:27015
Mutex

DC_MUTEX-871ND55

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    98HmJFR7GLjd

  • install

    true

  • offline_keylogger

    false

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      51e12e4db963bd5b2bb2f826767e3bc67d1e3e1f7222b1ede203dd3304efbe51.bin

    • Size

      253KB

    • MD5

      016d141ae10e0601b7e3eac1ab8e452c

    • SHA1

      bc38c46d7f7706176178f138aa9f33c498f7263d

    • SHA256

      51e12e4db963bd5b2bb2f826767e3bc67d1e3e1f7222b1ede203dd3304efbe51

    • SHA512

      911a117cba62ee918a151da422e990388de68a0958d5695b74142c11f650fefd8718ca72d261b7f5762db5fb09d8b15c8cbf4703b59bb159e78d5c7a917d7fc0

    • SSDEEP

      6144:AD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZ:Al8E4w5huat7UovONzbXw

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • 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

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

      upx

    • 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