Analysis

  • max time kernel
    141s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-06-2024 04:07

General

  • Target

    99eee6816b1dbbb80cbb5082d2c82414_JaffaCakes118.exe

  • Size

    232KB

  • MD5

    99eee6816b1dbbb80cbb5082d2c82414

  • SHA1

    cdbbc3d5d09d481038096c24a24a8d48c33e0adc

  • SHA256

    fb51a8c32c9ab73b839799473f21113702599eb2708cedf5e5b3cf1e4a1824a2

  • SHA512

    6cda429229a8792622c1676e9c1dddcf6807bfdde0911d8b2a6de39e7f068e4ba42add0b5c99ce795b4c29a9cbad459652b19aa8e04fa4e01f385678f93f66a9

  • SSDEEP

    6144:ZZO4pwWLtkBtcD4oCGjN4eZAG+aObnXXX:HOcZ0c9otb

Malware Config

Signatures

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\99eee6816b1dbbb80cbb5082d2c82414_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\99eee6816b1dbbb80cbb5082d2c82414_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:936
    • C:\Users\Admin\AppData\Local\Temp\99eee6816b1dbbb80cbb5082d2c82414_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\99eee6816b1dbbb80cbb5082d2c82414_JaffaCakes118.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\99eee6816b1dbbb80cbb5082d2c82414_JaffaCakes118.exe.log

    Filesize

    224B

    MD5

    9c4b66f77f12558c48b620ddfb44029d

    SHA1

    446651db643b943ec37b9b3599655e211a4bc73e

    SHA256

    42f723d18283fda6a0904046cc29ee8d10e562d20c7615259a46ae9c0e4c9708

    SHA512

    983aed0ec15a79b716ac6dc080146e4ed098c117c31167053fb5971649dc621d1db5292fdd76f3010f094b75d57ea0bdb35bc829c6ba37e4d276b266361dee8e

  • memory/936-0-0x0000000075202000-0x0000000075203000-memory.dmp

    Filesize

    4KB

  • memory/936-1-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/936-2-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/936-8-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4032-4-0x0000000000400000-0x0000000000434000-memory.dmp

    Filesize

    208KB

  • memory/4032-7-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4032-9-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4032-10-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4032-11-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4032-12-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB