Overview

overview

10

Static

static

10

4a05ce132b...cs.exe

windows7-x64

10

4a05ce132b...cs.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics

  • Size

    283KB

  • Sample

    240521-plmr3sdf8z

  • MD5

    d34affe27303efd466527f7e2580a950

  • SHA1

    515522de0fc8f037c5f5800b1c1db784f5390b87

  • SHA256

    4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1

  • SHA512

    930d9a31e7e141a8c4af56cac68fb5d0e676c8b2ddb7acc77334dde474f8eeb33ca4295983eb76f3e9d8e6b0890b79f5c647110286c9b17e7059b9ada8b9504f

  • SSDEEP

    6144:VcNYS99KGGyqRFIqU7lT73sctFM7Pz4pSXJSzAnh:VcWB1zktFSUxAh

Score
10/10
darkcometslaveevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Slave

C2

bssbig.no-ip.org:699

zymic99k.no-ip.org:699
Mutex

DC_MUTEX-9UYCUYX

Attributes
  • InstallPath

    winlogon.exe

  • gencode

    6dYodXAtJ1da

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winlogon

Targets

    • Target

      4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics

    • Size

      283KB

    • MD5

      d34affe27303efd466527f7e2580a950

    • SHA1

      515522de0fc8f037c5f5800b1c1db784f5390b87

    • SHA256

      4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1

    • SHA512

      930d9a31e7e141a8c4af56cac68fb5d0e676c8b2ddb7acc77334dde474f8eeb33ca4295983eb76f3e9d8e6b0890b79f5c647110286c9b17e7059b9ada8b9504f

    • SSDEEP

      6144:VcNYS99KGGyqRFIqU7lT73sctFM7Pz4pSXJSzAnh:VcWB1zktFSUxAh

    Score
    10/10
    darkcometslaveevasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      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

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

3
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks