Overview

overview

10

Static

static

ae5aa01579...5d.exe

windows7-x64

10

ae5aa01579...5d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ae5aa015798898802e277ff25fa8678f688f9df22ad9d15d849409d3d83b925d

  • Size

    534KB

  • Sample

    221202-3f585aeb83

  • MD5

    8093d7e4d74c549ee8c185c655f47e65

  • SHA1

    4cefa845db22a23f0cb5e1b99ad8a1bcd5795ccc

  • SHA256

    ae5aa015798898802e277ff25fa8678f688f9df22ad9d15d849409d3d83b925d

  • SHA512

    954e90d6b857e8cac84137e12ddb9d775ece68eabbebdea5a5651a172b7a52f76443ba0cbeef980161839b2192e0be9e0903808d0544e49b92ee02ce2cbb474d

  • SSDEEP

    12288:Hhqmauq42dSMeIdh07uRCxBzh9pVnfLSPijpmcUHlMSn8qcpuT:HhqmauqW8tAxBLdjpmoI08

Score
10/10
darkcomethfevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

HF

C2

cyber-dos.no-ip.org:1337

Mutex

DC_MUTEX-EYQES59

Attributes
  • InstallPath

    java32\java.exe

  • gencode

    vP5N1dBnHx0W

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    java

Targets

    • Target

      ae5aa015798898802e277ff25fa8678f688f9df22ad9d15d849409d3d83b925d

    • Size

      534KB

    • MD5

      8093d7e4d74c549ee8c185c655f47e65

    • SHA1

      4cefa845db22a23f0cb5e1b99ad8a1bcd5795ccc

    • SHA256

      ae5aa015798898802e277ff25fa8678f688f9df22ad9d15d849409d3d83b925d

    • SHA512

      954e90d6b857e8cac84137e12ddb9d775ece68eabbebdea5a5651a172b7a52f76443ba0cbeef980161839b2192e0be9e0903808d0544e49b92ee02ce2cbb474d

    • SSDEEP

      12288:Hhqmauq42dSMeIdh07uRCxBzh9pVnfLSPijpmcUHlMSn8qcpuT:HhqmauqW8tAxBLdjpmoI08

    Score
    10/10
    darkcomethfevasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Adds Run key to start application

      persistence

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Execution

Scripting

1
T1064

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

Scripting

1
T1064

Credential Access

Discovery

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Tasks