Overview

overview

10

Static

static

7

f9c48f7766...b9.exe

windows7-x64

10

f9c48f7766...b9.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    179s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 21:19

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General

  • Target

    f9c48f77663eae6dc9b4567758751c0fb3059165fe2fa24a7bf2949ad4b78bb9.exe

  • Size

    755KB

  • MD5

    b31929cf07815e0cfd3f3c32fe49dc2f

  • SHA1

    7fc8a85285388a5f2ff951960178e0a3746e033f

  • SHA256

    f9c48f77663eae6dc9b4567758751c0fb3059165fe2fa24a7bf2949ad4b78bb9

  • SHA512

    05c6c06e3be5ae22971e53233e4f1d040a016c30192a7f3348b2650f6b48c4192d5bcb99cb37909776350556c7356290f5231c2e21616dfd232c0a70f368333a

  • SSDEEP

    12288:qebXK0f0YgZMxvSgB81A4uBS8rH7FL/r9OExzA+vYguk2zUsVlv/j/mraY6v2WU:nXKSgOSmCH8rBDVxnCYsrHYkx

Score
10/10
darkcometnew---victimpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

New---Victim

C2

freewayblaze.zapto.org:1604

Mutex

DC_MUTEX-NTT55ZM

Attributes
  • gencode

    eoRhVbsCy5oj

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f9c48f77663eae6dc9b4567758751c0fb3059165fe2fa24a7bf2949ad4b78bb9.exe
    "C:\Users\Admin\AppData\Local\Temp\f9c48f77663eae6dc9b4567758751c0fb3059165fe2fa24a7bf2949ad4b78bb9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:400
    • C:\Users\Admin\AppData\Local\Temp\f9c48f77663eae6dc9b4567758751c0fb3059165fe2fa24a7bf2949ad4b78bb9.exe
      "C:\Users\Admin\AppData\Local\Temp\f9c48f77663eae6dc9b4567758751c0fb3059165fe2fa24a7bf2949ad4b78bb9.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1364
    • C:\Users\Admin\AppData\Roaming\Microsoft\IpOverUsbSvrc.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\IpOverUsbSvrc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      PID:3380

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\IpOverUsbSvrc.exe
    Filesize

    11KB

    MD5

    03c4f3f5cdbc342eb1c0349e001fdd0c

    SHA1

    7d45ed19db4eaed16d1985240c98fab7623798e5

    SHA256

    a395cb8bb6cdaa7f0dad2e012fb5107d0d307efea021be048bdd5b67479356bc

    SHA512

    d59ccd1ffffa884c8a7a96979ed19f0f8a586474c23d5b5ab23c235799044042f639e1834ee2e54a205a71caf97898ac8898d0da963fb006e443f3fb8f3c1162

    Download Submit
  • C:\Users\Admin\AppData\Roaming\Microsoft\IpOverUsbSvrc.exe
    Filesize

    11KB

    MD5

    03c4f3f5cdbc342eb1c0349e001fdd0c

    SHA1

    7d45ed19db4eaed16d1985240c98fab7623798e5

    SHA256

    a395cb8bb6cdaa7f0dad2e012fb5107d0d307efea021be048bdd5b67479356bc

    SHA512

    d59ccd1ffffa884c8a7a96979ed19f0f8a586474c23d5b5ab23c235799044042f639e1834ee2e54a205a71caf97898ac8898d0da963fb006e443f3fb8f3c1162

    Download Submit
  • memory/400-133-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/400-132-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1364-135-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

    Download
  • memory/1364-137-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

    Download
  • memory/1364-138-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

    Download
  • memory/1364-136-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

    Download
  • memory/1364-134-0x0000000000000000-mapping.dmp
    Download
  • memory/1364-143-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

    Download
  • memory/3380-139-0x0000000000000000-mapping.dmp
    Download
  • memory/3380-142-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3380-144-0x0000000074EF0000-0x00000000754A1000-memory.dmp
    Filesize

    5.7MB

    Download