Analysis

  • max time kernel
    7s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-10-2024 18:11

General

  • Target

    ea40fae1fcaec1107a89480b3b21216182eafc64cea03128df398d74b46d8771N.exe

  • Size

    70KB

  • MD5

    acc594e4d7fba75dded3fe9c135adb20

  • SHA1

    e648845ed11dd194fb771c61bc14c5eac129b642

  • SHA256

    ea40fae1fcaec1107a89480b3b21216182eafc64cea03128df398d74b46d8771

  • SHA512

    8528f49d17aa46b760bb0755abf0d821db3bd77f2e95ccfd1035f77db266a510d3c2a2a15e1ea444b540819af2ae988996f67f8379a77e42e18c27eb46f3e907

  • SSDEEP

    1536:gFTnqpKxynVHGeifCSzTPb542HkLbvJfxa:gFTqGeifrvb59H+bvJ5a

Malware Config

Signatures

  • BlackNET

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

  • BlackNET payload 1 IoCs
  • Blacknet family
  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ea40fae1fcaec1107a89480b3b21216182eafc64cea03128df398d74b46d8771N.exe
    "C:\Users\Admin\AppData\Local\Temp\ea40fae1fcaec1107a89480b3b21216182eafc64cea03128df398d74b46d8771N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      PID:2340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe

    Filesize

    70KB

    MD5

    acc594e4d7fba75dded3fe9c135adb20

    SHA1

    e648845ed11dd194fb771c61bc14c5eac129b642

    SHA256

    ea40fae1fcaec1107a89480b3b21216182eafc64cea03128df398d74b46d8771

    SHA512

    8528f49d17aa46b760bb0755abf0d821db3bd77f2e95ccfd1035f77db266a510d3c2a2a15e1ea444b540819af2ae988996f67f8379a77e42e18c27eb46f3e907

  • memory/2340-41-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-43-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-51-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-33-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-48-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-49-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-47-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-46-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-45-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-44-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-42-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-39-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-40-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-38-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-37-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-50-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-30-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/2340-31-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-6-0x0000000000BE0000-0x0000000000BE8000-memory.dmp

    Filesize

    32KB

  • memory/4340-14-0x00007FFA71BE5000-0x00007FFA71BE6000-memory.dmp

    Filesize

    4KB

  • memory/4340-4-0x000000001BD30000-0x000000001BDCC000-memory.dmp

    Filesize

    624KB

  • memory/4340-34-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-1-0x000000001B1E0000-0x000000001B286000-memory.dmp

    Filesize

    664KB

  • memory/4340-25-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-11-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-3-0x000000001B780000-0x000000001BC4E000-memory.dmp

    Filesize

    4.8MB

  • memory/4340-36-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-27-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-10-0x000000001CF80000-0x000000001CFE2000-memory.dmp

    Filesize

    392KB

  • memory/4340-2-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-9-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-8-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-7-0x000000001BE90000-0x000000001BEDC000-memory.dmp

    Filesize

    304KB

  • memory/4340-5-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-0-0x00007FFA71BE5000-0x00007FFA71BE6000-memory.dmp

    Filesize

    4KB

  • memory/4340-32-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB

  • memory/4340-15-0x00007FFA71930000-0x00007FFA722D1000-memory.dmp

    Filesize

    9.6MB