Analysis

  • max time kernel
    116s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2024 18:25

General

  • Target

    41b47975c4ff5e6765136d1d7eb4f920N.exe

  • Size

    109KB

  • MD5

    41b47975c4ff5e6765136d1d7eb4f920

  • SHA1

    c23bd9b148973fe186f64967b624afd20d9b436b

  • SHA256

    5ba1bda0c7717941dcd453bc2fd31dde89a70f9983e741bb33a475bbe679cc40

  • SHA512

    7aafac2dd8a3139525d10446978c9347ac1c15f572cd8dfe53ad1d300da6495515fd33eb28438eddb2d7745c24a558214a999c6bcbf837054c63bc4efc456a65

  • SSDEEP

    1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73jj:w5eznsjsguGDFqGx8egoxmO3rf

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\41b47975c4ff5e6765136d1d7eb4f920N.exe
    "C:\Users\Admin\AppData\Local\Temp\41b47975c4ff5e6765136d1d7eb4f920N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3584
    • 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:1012
      • 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:4584
        • 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:3868
  • 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=4276,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=1044 /prefetch:8
    1⤵
      PID:5068

    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

      109KB

      MD5

      c85b73d5d2f6bac6ab072fab6d01f421

      SHA1

      16c02615db9a657c1b60eabcdb14a93d2e59cfe5

      SHA256

      16a497834a9b532fc635020e40a92c0e7c8c285bf6a989d3f86ccf499916021d

      SHA512

      84bf1fc68e4d4175f9f557374e6ae749f01ca6973758da97d669a5d30ae1e0aaac9a1a0d2cbd02dc3ed0d9494ebde4349a4f6fe90531e111d8f4d7ce09e70cff

    • memory/1012-20-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/1012-29-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/1012-22-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/1012-23-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/3584-7-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/3584-19-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/3584-21-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/3584-0-0x0000000074C12000-0x0000000074C13000-memory.dmp

      Filesize

      4KB

    • memory/3584-6-0x0000000074C12000-0x0000000074C13000-memory.dmp

      Filesize

      4KB

    • memory/3584-2-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/3584-1-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/4584-24-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/4584-28-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/4584-30-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB

    • memory/4584-31-0x0000000074C10000-0x00000000751C1000-memory.dmp

      Filesize

      5.7MB