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Analysis

  • max time kernel
    119s
  • 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
    22/09/2024, 09:14

General

  • Target

    3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe

  • Size

    23KB

  • MD5

    a1d501174bd8a3f273c0070a3197fb40

  • SHA1

    7aa9b572d8ec818334daf8f2e42191d2413b9965

  • SHA256

    3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87c

  • SHA512

    1a588bc1640479b24a38e7c44586290d9b69f91e4f882b2fc73db0fe8b2bec30df4f3a57bfb17cac6edf0627138f1dd90495c90dabab702032ea523c2c1fdf7f

  • SSDEEP

    384:+wTSiYWD2Z7w3CsJeiecwJ3fw6FgzeAh33RtmRvR6JZlbw8hqIusZzZw35y:1vZiBK1edJRpcnuVg

Malware Config

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 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).

  • 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 3 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 27 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe
    "C:\Users\Admin\AppData\Local\Temp\3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87cN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3832
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:3428
  • 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=4132,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4080 /prefetch:8
    1⤵
      PID:2224

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\server.exe

      Filesize

      23KB

      MD5

      a1d501174bd8a3f273c0070a3197fb40

      SHA1

      7aa9b572d8ec818334daf8f2e42191d2413b9965

      SHA256

      3978d80f61dc860809a877ae2e17a21ec4dfdf02f81953fa1b14eda65055d87c

      SHA512

      1a588bc1640479b24a38e7c44586290d9b69f91e4f882b2fc73db0fe8b2bec30df4f3a57bfb17cac6edf0627138f1dd90495c90dabab702032ea523c2c1fdf7f

    • memory/3832-13-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/3832-14-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/3832-15-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/3832-16-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/4020-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

      Filesize

      4KB

    • memory/4020-1-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/4020-2-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB

    • memory/4020-12-0x00000000746A0000-0x0000000074C51000-memory.dmp

      Filesize

      5.7MB