Overview

overview

10

Static

static

10

81c0798a95...14.exe

windows7-x64

10

81c0798a95...14.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    81c0798a953e92757be93a26186fc240ed0a0c5e9c8787b549b0bc877e5e5f14

  • Size

    1004KB

  • Sample

    221123-s6b3vsdb57

  • MD5

    a60109684df6f7ee0d7f942956464212

  • SHA1

    4262a7dfff7827f3cc3144c5334d28bfab5c8594

  • SHA256

    81c0798a953e92757be93a26186fc240ed0a0c5e9c8787b549b0bc877e5e5f14

  • SHA512

    cdf617a1825d33e0a3c32557003214f0e662f3c40709c29e21cf02c6bc6f75ce1299aea1606c9ed3c12aa5b756472285ecb34e22c33c7bb10fd7a191176b00b7

  • SSDEEP

    24576:8Z1xuVVjfFoynPaVBUR8f+kN10EBrC8rnzJ:sQDgok30wC8h

Score
10/10
darkcometguestpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest

C2

rathostyes.no-ip.biz:200

Mutex

DC_MUTEX-H2N8TTG

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    SdzuEnJoJxxU

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll.exe

Targets

    • Target

      81c0798a953e92757be93a26186fc240ed0a0c5e9c8787b549b0bc877e5e5f14

    • Size

      1004KB

    • MD5

      a60109684df6f7ee0d7f942956464212

    • SHA1

      4262a7dfff7827f3cc3144c5334d28bfab5c8594

    • SHA256

      81c0798a953e92757be93a26186fc240ed0a0c5e9c8787b549b0bc877e5e5f14

    • SHA512

      cdf617a1825d33e0a3c32557003214f0e662f3c40709c29e21cf02c6bc6f75ce1299aea1606c9ed3c12aa5b756472285ecb34e22c33c7bb10fd7a191176b00b7

    • SSDEEP

      24576:8Z1xuVVjfFoynPaVBUR8f+kN10EBrC8rnzJ:sQDgok30wC8h

    Score
    10/10
    darkcometguestpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    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