Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-04-2024 03:44

General

  • Target

    ec99191a86cf84844ed7bf77c7e404b2_JaffaCakes118.exe

  • Size

    81KB

  • MD5

    ec99191a86cf84844ed7bf77c7e404b2

  • SHA1

    f69e7b91a341a7401dc83e1055d2b42f8338f5a5

  • SHA256

    13df7493ad9c328a21e7917abb6f4208c7c1b880e28d6750d1b0c60a27aa0e76

  • SHA512

    df31b924f6c9690c76c1ce94824ff89b668dbf6afbca7ff1c97f4c925092a208f23d530d1f5044b6152b913d46b8ac514ecfbb45acc56dc55f497e1a022e835b

  • SSDEEP

    1536:yxqjQ+P04wsZLnDrCYAcLMNA7/utGgvdsaFOqJ75Bw:zr8WDrCfcLMyyMmWa15m

Malware Config

Signatures

  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec99191a86cf84844ed7bf77c7e404b2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ec99191a86cf84844ed7bf77c7e404b2_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4900
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ec99191a86cf84844ed7bf77c7e404b2_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ec99191a86cf84844ed7bf77c7e404b2_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3904
  • 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 --no-appcompat-clear --mojo-platform-channel-handle=4528 --field-trial-handle=2320,i,3025503729105798828,9325691672526736153,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5024

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

      Filesize

      2.4MB

      MD5

      d9e8a1fa55faebd36ed2342fedefbedd

      SHA1

      c25cc7f0035488de9c5df0121a09b5100e1c28e9

      SHA256

      bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a

      SHA512

      134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33

    • C:\Users\Admin\AppData\Local\Temp\3582-490\ec99191a86cf84844ed7bf77c7e404b2_JaffaCakes118.exe

      Filesize

      41KB

      MD5

      c1ca7d063e73949ec79bb7d31c739a5c

      SHA1

      3a0140578078a2f64ae5b0b1438bb7afbf60cbcc

      SHA256

      4d448629d93874e93560c2e979019608e29a67f8d68ea882d2453f9d56f2a56c

      SHA512

      454a108cd66263112cc899cdd0354be500ad02689a323ba6fab76eac903c881ea1e75f2bd57bc9a51a6a0fb5aefdb384d1265024777f728c6c07ecaf0a603162

    • memory/3904-13-0x0000000000400000-0x000000000044D000-memory.dmp

      Filesize

      308KB

    • memory/3904-15-0x0000000000400000-0x000000000044D000-memory.dmp

      Filesize

      308KB

    • memory/4900-122-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-112-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-89-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-123-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-124-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-125-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-127-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-128-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-129-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4900-131-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB