Analysis

  • max time kernel
    92s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2022 05:26

General

  • Target

    a8fa0e6fbc8ef5b0666767f0889e900e1041fdb75e66403c01ba731fcb1ca6ee.exe

  • Size

    994KB

  • MD5

    371fd32817ebb6ced905a86759461aa0

  • SHA1

    6af815bc66d10e2a3c57483bcb69d140528bd7f5

  • SHA256

    a8fa0e6fbc8ef5b0666767f0889e900e1041fdb75e66403c01ba731fcb1ca6ee

  • SHA512

    0c7a8c2ff7635cdf8c7920eb05829029548a2a209a0b2ae0280ea65783195c86492c4d5b502aa7a4ce9fa280f8098c6ed61ee005498dd7e251eaa8bc00fe8bc4

  • SSDEEP

    24576:xt5Dotew8MpNrpg4AK1plc0dGFHNHeJplc0dGFHNHel:xt5DYNrpgFKbWNSWNY

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-QBCX812

Attributes
  • gencode

    8G063eTs9e11

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8fa0e6fbc8ef5b0666767f0889e900e1041fdb75e66403c01ba731fcb1ca6ee.exe
    "C:\Users\Admin\AppData\Local\Temp\a8fa0e6fbc8ef5b0666767f0889e900e1041fdb75e66403c01ba731fcb1ca6ee.exe"
    1⤵
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Users\Admin\AppData\Local\Temp\a8fa0e6fbc8ef5b0666767f0889e900e1041fdb75e66403c01ba731fcb1ca6ee.exe
      C:\Users\Admin\AppData\Local\Temp\a8fa0e6fbc8ef5b0666767f0889e900e1041fdb75e66403c01ba731fcb1ca6ee.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3608

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1064-132-0x0000000000400000-0x0000000000435000-memory.dmp
    Filesize

    212KB

  • memory/1064-147-0x0000000000400000-0x0000000000435000-memory.dmp
    Filesize

    212KB

  • memory/3608-135-0x0000000000000000-mapping.dmp
  • memory/3608-136-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-137-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-138-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-140-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-142-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-143-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-144-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-146-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB

  • memory/3608-148-0x0000000000400000-0x00000000004B2000-memory.dmp
    Filesize

    712KB