Analysis

  • max time kernel
    116s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-08-2024 20:39

General

  • Target

    31bb4a299ec1bdeceef2ce35b9d28750N.exe

  • Size

    118KB

  • MD5

    31bb4a299ec1bdeceef2ce35b9d28750

  • SHA1

    ef94ad27c4605c6d499237f72cbba44848454b87

  • SHA256

    af9bf280613d5c0a55a543573fa943191ac171c6e36ab8ba474abc3d32572bc0

  • SHA512

    3bf5cfe3786e27fd9848ca3c7757313fd1ef8a99427520202ac6dc58ec11505b301bf44e5a1b2ad2eb0d755a0a2c40b0e31403f8904c0e66740638d16b09ab31

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FOK:P5eznsjsguGDFqGZ2rDL14FOK

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes
  • reg_key

    e1a87040f2026369a233f9ae76301b7b

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\31bb4a299ec1bdeceef2ce35b9d28750N.exe
    "C:\Users\Admin\AppData\Local\Temp\31bb4a299ec1bdeceef2ce35b9d28750N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3400
    • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
      "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4472
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1644
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2964
  • 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 --field-trial-handle=4444,i,6510295916244954942,10164894160290787457,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
    1⤵
      PID:1668

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

      Filesize

      400B

      MD5

      0a9b4592cd49c3c21f6767c2dabda92f

      SHA1

      f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

      SHA256

      c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

      SHA512

      6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

    • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

      Filesize

      118KB

      MD5

      66d531a97333692d50de92ccebc0f0bf

      SHA1

      bbbc4b592e4ba78447bf2c66c6dd1ae5a1aced63

      SHA256

      6c80f77517805284b92dab1fde9cb521b08de10a52f4b7223057728bb46d0506

      SHA512

      e4e0f4742468ad43cd7c9dad39393a6da20705dd608c78214c34b2d9743146ba793c92566be5f9acd50cacf887a79f6014b59434dc74e2b1cb5f8f8003a8a863

    • memory/1644-24-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/1644-32-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/1644-28-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/1644-30-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/3400-7-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/3400-20-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/3400-19-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/3400-0-0x0000000075262000-0x0000000075263000-memory.dmp

      Filesize

      4KB

    • memory/3400-6-0x0000000075262000-0x0000000075263000-memory.dmp

      Filesize

      4KB

    • memory/3400-2-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/3400-1-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/4472-21-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/4472-22-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/4472-23-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB

    • memory/4472-29-0x0000000075260000-0x0000000075811000-memory.dmp

      Filesize

      5.7MB