Analysis

  • max time kernel
    141s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 10:56

General

  • Target

    de3a402d51ff1dbcf90aa356215e9122_JaffaCakes118.exe

  • Size

    994KB

  • MD5

    de3a402d51ff1dbcf90aa356215e9122

  • SHA1

    a17f4b14fbda42a4ab47f49efb679eaff0b7cb8c

  • SHA256

    4d8c94472f7b8891fd45a5176a8b0c76dc3f1cc9935a12d96142f0edfaded422

  • SHA512

    327828e4e45bf8dc0d95a6e77e9025727d22d411adfd982deb856339e4f4d2b2395e0cae6537eb7a07c327912be136080b13d9704d073dad5e1b02f081b8bf9c

  • SSDEEP

    24576:4MjPJ5g9KVGrdNikfu2hBfK8ilRty5olGJsxV:dJ5gEKNikf3hBfUiWxV

Malware Config

Signatures

  • Ammyy Admin

    Remote admin tool with various capabilities.

  • AmmyyAdmin payload 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
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de3a402d51ff1dbcf90aa356215e9122_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\de3a402d51ff1dbcf90aa356215e9122_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Users\Admin\AppData\Local\Temp\budha.exe
      "C:\Users\Admin\AppData\Local\Temp\budha.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4224
  • 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=4336,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=3776 /prefetch:8
    1⤵
      PID:1704

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      994KB

      MD5

      610ad37fb81c7cfe76c0af387b6cd34d

      SHA1

      3e186ab630ad63ec693a83980a0224dad7dcb4ab

      SHA256

      7bae4036816ec4c3dad57f9c1a62616b71e385a4a5c989465c6740a07673b768

      SHA512

      10333a62b7c2a612d7e2e7a43ba982e78232f758c4cf0073b21de8888df5321faa3632409892ba9c2119b2df9cadc7521a2a29b2f696395dac3d5f2452113c08

    • memory/2956-0-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2956-1-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

      Filesize

      4KB

    • memory/2956-3-0x00000000027C0000-0x0000000002BC0000-memory.dmp

      Filesize

      4.0MB

    • memory/2956-12-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/4224-14-0x0000000002580000-0x0000000002980000-memory.dmp

      Filesize

      4.0MB

    • memory/4224-13-0x00000000021B0000-0x00000000021B1000-memory.dmp

      Filesize

      4KB

    • memory/4224-21-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB