Analysis

  • max time kernel
    140s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/05/2024, 23:45

General

  • Target

    0ce3ed6e61abbb9c356a1b69dc87042c_JaffaCakes118.exe

  • Size

    66KB

  • MD5

    0ce3ed6e61abbb9c356a1b69dc87042c

  • SHA1

    a8d0a0df08ce68ce70eba47ef89908fe58259706

  • SHA256

    f01acdb7cbbb800af897fcf5dba1a1ecadc40dd28046ff8a02b3c23a3f60d6cc

  • SHA512

    20d9b0ae119e9a8595f39d9dae2c5e2a27e372238b2a207312e235b8a8e997503d4fc07fb093a7d09645792e804b446e64230502aa3ef2a01a4c9f133731b39a

  • SSDEEP

    768:TrItKyw5WHXfQmjIiIk9ecAa7pP1FMs96MyXlDdtldE9rvvvCVVVVxaaaH:Tr3Z5IfQmv81a7pP113yXddtnsvvv7

Score
8/10

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0ce3ed6e61abbb9c356a1b69dc87042c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0ce3ed6e61abbb9c356a1b69dc87042c_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3288
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\aiyhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • Views/modifies file attributes
      PID:724
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\0CE3ED~1.EXE > nul
      2⤵
        PID:4840
    • C:\Windows\Debug\aiyhost.exe
      C:\Windows\Debug\aiyhost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:3952

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\debug\aiyhost.exe

      Filesize

      66KB

      MD5

      025759b6b98ab38ece8dd584cbe63b08

      SHA1

      92a01267cf2f3a94b606ea4756fe133985a50af8

      SHA256

      b9e618c6952751a8201d732da4a68b3b82b3af6533d4a05d1a0bb7670317fd7f

      SHA512

      cbe386c68bba3cddd3a9cd588582a4f0c25aefcd937068cfdf2b7b56197758143ed1e0e1ad54e37d7c997632287f9f24080e67c132fc86c1a854eed473d6e315