Overview

overview

10

Static

static

10

4a05ce132b...cs.exe

windows7-x64

10

4a05ce132b...cs.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    136s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 12:25

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General

  • Target

    4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe

  • Size

    283KB

  • 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

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 3 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1464
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2896
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3972
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:4064

Network

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

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

2
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

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\winlogon.exe
    Filesize

    283KB

    MD5

    d34affe27303efd466527f7e2580a950

    SHA1

    515522de0fc8f037c5f5800b1c1db784f5390b87

    SHA256

    4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1

    SHA512

    930d9a31e7e141a8c4af56cac68fb5d0e676c8b2ddb7acc77334dde474f8eeb33ca4295983eb76f3e9d8e6b0890b79f5c647110286c9b17e7059b9ada8b9504f

    Download Submit
  • memory/1404-0-0x0000000000400000-0x00000000004C7000-memory.dmp
    Filesize

    796KB

    Download
  • memory/1404-1-0x00000000009F0000-0x00000000009F1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1404-62-0x0000000000400000-0x00000000004C7000-memory.dmp
    Filesize

    796KB

    Download