Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-03-2024 02:22

General

  • Target

    acea5fb0f0dd0ad6e33cedbaed6fdbd9.exe

  • Size

    45KB

  • MD5

    acea5fb0f0dd0ad6e33cedbaed6fdbd9

  • SHA1

    b8c8d170b78ba0f117fc13ddb1ace03efd2a8b0b

  • SHA256

    76844c2401ac24b85e662d65f5007dc193e81df6c9493963c8e09de55f98cdfa

  • SHA512

    adb12002574276b0357e5971d3fd9c7a9e57a3d34800693ce5f357d09f548051819376f669a1727db363566aa9574b11edb0fec89e55ac5c7df88275ac0f179b

  • SSDEEP

    768:RcQQj5JBXsahUBZGa1jRY+JPPtTVv04Ap+aTV5fbfts6hs/a0fC:lQj5TXgGapGoVVvB43jbfts6h70fC

Score
10/10

Malware Config

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

83pE2q

C2

http://100.26.17.80

Mutex

BN[e3f2e5808feda59aa28196]

Attributes
  • antivm

    false

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    a1c8373d971dfcd2057c69646c6c3502

  • startup

    false

  • usb_spread

    false

Signatures

  • BlackNET

    BlackNET is an open source remote access tool written in VB.NET.

  • BlackNET payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acea5fb0f0dd0ad6e33cedbaed6fdbd9.exe
    "C:\Users\Admin\AppData\Local\Temp\acea5fb0f0dd0ad6e33cedbaed6fdbd9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 1.1.1.1 -n 5 -w 5000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\acea5fb0f0dd0ad6e33cedbaed6fdbd9.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4676
      • C:\Windows\system32\PING.EXE
        ping 1.1.1.1 -n 5 -w 5000
        3⤵
        • Runs ping.exe
        PID:624
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4328 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4448

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Remote System Discovery

    1
    T1018

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/848-0-0x00000242F5D10000-0x00000242F5D22000-memory.dmp
      Filesize

      72KB

    • memory/848-1-0x00007FFAE8CC0000-0x00007FFAE9781000-memory.dmp
      Filesize

      10.8MB

    • memory/848-2-0x00000242F7970000-0x00000242F7980000-memory.dmp
      Filesize

      64KB

    • memory/848-3-0x00000242F7970000-0x00000242F7980000-memory.dmp
      Filesize

      64KB

    • memory/848-4-0x00007FFAE8CC0000-0x00007FFAE9781000-memory.dmp
      Filesize

      10.8MB

    • memory/848-5-0x00000242F7970000-0x00000242F7980000-memory.dmp
      Filesize

      64KB

    • memory/848-6-0x00000242F7970000-0x00000242F7980000-memory.dmp
      Filesize

      64KB

    • memory/848-7-0x00000242F7970000-0x00000242F7980000-memory.dmp
      Filesize

      64KB

    • memory/848-9-0x00007FFAE8CC0000-0x00007FFAE9781000-memory.dmp
      Filesize

      10.8MB