Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 03:49

General

  • Target

    69a3c94c586df5acb75967f1c97f79f3_JaffaCakes118.exe

  • Size

    985KB

  • MD5

    69a3c94c586df5acb75967f1c97f79f3

  • SHA1

    9bb3961a41c2afe325b6f615c6a6e7da07a6784c

  • SHA256

    4358764628ddb7a8272093b8923525e48877e7910049a7d00d71476a51a87765

  • SHA512

    b447714ce4e6ed4c82cb5bea5c345657b262c41e22cfc47e3f84917afae0cc4ef0fc4812f7c167d7969ffe46512edd5c9214840f975e71929447264435cb6f4e

  • SSDEEP

    24576:PrYUhzRsCg6Yn++QKSqW7gmsjFLke4gM2me1jnMlK:D+Cg6Kbb/W7GL/glK

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main payload 5 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 3 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 4 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 42 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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69a3c94c586df5acb75967f1c97f79f3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\69a3c94c586df5acb75967f1c97f79f3_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4860
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:4628
      • C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe
        "C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1128
        • C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe
          "C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:4632
        • C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe
          "C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe" 2 4632 240597234
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\appdata\fkshsks.exe

    Filesize

    985KB

    MD5

    69a3c94c586df5acb75967f1c97f79f3

    SHA1

    9bb3961a41c2afe325b6f615c6a6e7da07a6784c

    SHA256

    4358764628ddb7a8272093b8923525e48877e7910049a7d00d71476a51a87765

    SHA512

    b447714ce4e6ed4c82cb5bea5c345657b262c41e22cfc47e3f84917afae0cc4ef0fc4812f7c167d7969ffe46512edd5c9214840f975e71929447264435cb6f4e

  • memory/1128-14-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/1128-15-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/2896-27-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/4628-5-0x00000000004B0000-0x00000000004B1000-memory.dmp

    Filesize

    4KB

  • memory/4632-24-0x0000000000B60000-0x0000000000BFA000-memory.dmp

    Filesize

    616KB

  • memory/4632-42-0x0000000005220000-0x0000000005264000-memory.dmp

    Filesize

    272KB

  • memory/4632-16-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4632-56-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4632-48-0x0000000007600000-0x0000000007614000-memory.dmp

    Filesize

    80KB

  • memory/4632-19-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4632-25-0x0000000000B60000-0x0000000000BFA000-memory.dmp

    Filesize

    616KB

  • memory/4632-47-0x0000000006790000-0x00000000067E0000-memory.dmp

    Filesize

    320KB

  • memory/4632-21-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4632-45-0x0000000006350000-0x000000000635A000-memory.dmp

    Filesize

    40KB

  • memory/4632-20-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4632-40-0x0000000004C70000-0x0000000005214000-memory.dmp

    Filesize

    5.6MB

  • memory/4632-41-0x0000000004B70000-0x0000000004C0C000-memory.dmp

    Filesize

    624KB

  • memory/4632-44-0x0000000005460000-0x00000000054F2000-memory.dmp

    Filesize

    584KB

  • memory/4632-43-0x00000000052A0000-0x0000000005306000-memory.dmp

    Filesize

    408KB

  • memory/4860-4-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/4860-2-0x0000000003F90000-0x0000000003FA1000-memory.dmp

    Filesize

    68KB

  • memory/4860-0-0x0000000002390000-0x0000000002391000-memory.dmp

    Filesize

    4KB

  • memory/4860-1-0x0000000003F90000-0x0000000003FA1000-memory.dmp

    Filesize

    68KB

  • memory/4860-3-0x0000000003FB0000-0x0000000003FB1000-memory.dmp

    Filesize

    4KB