Overview

overview

10

Static

static

ed2538ba3f...b0.exe

windows7_x64

10

ed2538ba3f...b0.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    ed2538ba3fdaff85cbb11894c32ec8e1d46049c89b44f9cb823d383c79df54b0

  • Size

    1.8MB

  • Sample

    220307-m8fwyadfg6

  • MD5

    2ffbb53eb0913f749d8ffd248c34dd9f

  • SHA1

    d0d27fce8b392b69a296109e70d53eeec3ea1dfc

  • SHA256

    ed2538ba3fdaff85cbb11894c32ec8e1d46049c89b44f9cb823d383c79df54b0

  • SHA512

    c21308ad4a8cb2179c4f2e8105a5a552143f70f8a15cd3095803ee3b951a649373a71c6725337028757d8a6191961d028ff1f3ee9e3958e39eed49889e0ec067

Score
10/10
darkcometsazanevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

eriqmallamlaml.duckdns.org:1604

Mutex

DC_MUTEX-EKSW656

Attributes
  • InstallPath

    svchost.exe

  • gencode

    9epU0FMovytS

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    svchost

Targets

    • Target

      ed2538ba3fdaff85cbb11894c32ec8e1d46049c89b44f9cb823d383c79df54b0

    • Size

      1.8MB

    • MD5

      2ffbb53eb0913f749d8ffd248c34dd9f

    • SHA1

      d0d27fce8b392b69a296109e70d53eeec3ea1dfc

    • SHA256

      ed2538ba3fdaff85cbb11894c32ec8e1d46049c89b44f9cb823d383c79df54b0

    • SHA512

      c21308ad4a8cb2179c4f2e8105a5a552143f70f8a15cd3095803ee3b951a649373a71c6725337028757d8a6191961d028ff1f3ee9e3958e39eed49889e0ec067

    Score
    10/10
    darkcometsazanevasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • 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.

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

5
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