Analysis

  • max time kernel
    133s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2024, 05:16

General

  • Target

    11fc4ed7f48d160cb6b31bd024368a62_JaffaCakes118.exe

  • Size

    72KB

  • MD5

    11fc4ed7f48d160cb6b31bd024368a62

  • SHA1

    8b974d765f65fc8cc5d1d3e3d825c7c7eb71e177

  • SHA256

    cd4438b64175fd5321b7782f890e199c94d96f3626a60b2c37e5a45a1773886d

  • SHA512

    002dd7773fc37ec9026caeae929fc7feb3d715fa7a684e202ef2694d45da25872a1afb5d2bde7b61cf19177808b62f871056ca9aa03afe4771744822613ddade

  • SSDEEP

    768:rJHiEaq8TU2F99G218OrzlgTScp1U1vhBqgAUAas4hefyT2t6VtM:r9iqIFLn+TDPU1ZoTwey1Vt

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Deletes itself 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 2 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.

  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 29 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\11fc4ed7f48d160cb6b31bd024368a62_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\11fc4ed7f48d160cb6b31bd024368a62_JaffaCakes118.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Windows\system32\del.bat" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2364
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2900

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\del.bat

          Filesize

          248B

          MD5

          a10a86b9aa57cd2b8460bedf1720a6a5

          SHA1

          0af316fe2525b0d6963fa41ac04a3f04a79950b5

          SHA256

          9af8f854dc3baa724049541d7f60fb306e7c6900f413701b8fd57b5a70c554b4

          SHA512

          7c231fca80e528f05c1a69937e06c135b3a981363ed2163e71fd19ce33e702ec20d9214f39979125ad7f3ed60ef14aeb81af7ceb8ea3621ef01407020eef14e3

        • C:\Windows\fxsst.dll

          Filesize

          52KB

          MD5

          bf8a036a69643a6e00085544ef187d0a

          SHA1

          006b5e8030acda0fba9888c7c5159cff5531a532

          SHA256

          190ac50664d03ef2e5398767aad3f8e85d1a9f63947702b59ebf14669d0bd214

          SHA512

          49aa0e9c711b03f8e17a8e7e8f0ba7e20bd00d47be503ee99fc6bf5bfe4529be2ddbea2707dadcd1b81244e8966e8a34c8b0dc32a8d6d278e34011fc930dc0bd

        • memory/2900-15-0x00000000025D0000-0x00000000025E0000-memory.dmp

          Filesize

          64KB