Analysis

  • max time kernel
    150s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-09-2024 15:51

General

  • Target

    f29a2274931e575fad1687f2e13be0cc_JaffaCakes118.exe

  • Size

    93KB

  • MD5

    f29a2274931e575fad1687f2e13be0cc

  • SHA1

    48e19b444fedb0313590e2f976c4c74f612d5222

  • SHA256

    3d027d9488ecc9b42321a91d0ab62f558b415418ade114024d158def747041d5

  • SHA512

    2c34f0f4c0582b5f272ed0803e5e9982bbfc7a8cb1587ec36e9b4af453540ffd8d1a1286e3fc2a70a90270e0f890bbcc08251d3fe12dff09b4f8e90c0208c17e

  • SSDEEP

    1536:Gw4Ec0HCYnz7a5MzU/jEwzGi1dDgDpgS:GwZHCYnzQMzUEi1dem

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Modifies Windows Firewall 2 TTPs 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 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 9 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 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f29a2274931e575fad1687f2e13be0cc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f29a2274931e575fad1687f2e13be0cc_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\ProgramData\server.exe
      "C:\ProgramData\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2088
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\ProgramData\server.exe"
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2656
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:3708
  • 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=948,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=3808 /prefetch:8
    1⤵
      PID:2924

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\server.exe

      Filesize

      93KB

      MD5

      f29a2274931e575fad1687f2e13be0cc

      SHA1

      48e19b444fedb0313590e2f976c4c74f612d5222

      SHA256

      3d027d9488ecc9b42321a91d0ab62f558b415418ade114024d158def747041d5

      SHA512

      2c34f0f4c0582b5f272ed0803e5e9982bbfc7a8cb1587ec36e9b4af453540ffd8d1a1286e3fc2a70a90270e0f890bbcc08251d3fe12dff09b4f8e90c0208c17e

    • C:\Users\Admin\AppData\Roaming\app

      Filesize

      5B

      MD5

      c2844bc9e1bd64168a727b0680ae4d90

      SHA1

      7bb263540de557f5a4e09c6c78b7dbb314a0df9a

      SHA256

      9c9701ab918368b615fc6a0dbeb5efa286a232d751982ae70b48ad6914bf01e5

      SHA512

      360953bb20d91539022fcb1becf4638970c4452816797a8dca65e3ae4a542302e6e89f0828087caaa63a0750aa78605f8034da7c8663fa4fc677c8f3e53655ed

    • memory/1768-15-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/1768-14-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/1768-16-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/1768-51-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/1768-52-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/1768-53-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/4604-0-0x0000000075432000-0x0000000075433000-memory.dmp

      Filesize

      4KB

    • memory/4604-1-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/4604-2-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB

    • memory/4604-13-0x0000000075430000-0x00000000759E1000-memory.dmp

      Filesize

      5.7MB