Analysis

  • max time kernel
    150s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 21:07

General

  • Target

    4d02985363a38bd89d0b851cd8e8af87_JaffaCakes118.exe

  • Size

    985KB

  • MD5

    4d02985363a38bd89d0b851cd8e8af87

  • SHA1

    f2360145987081d33d32ac109bab3f5a690ed26f

  • SHA256

    f5042e5664b6cacb1d8b6ceaa45529b9d3262c8a3ae1728d827702a33a2d0db3

  • SHA512

    c4f9fd89cebd2d51ab7d6be134b471f468405b3895c898917361599130d38f1a8a52b385bf7a13e6347e95bc89d2aa3232531a1913ec43e2b06a100350d5ec63

  • SSDEEP

    24576:/rYUhzRsCg6Yn++QKSwUcu1VP6TLz6XeijSRj5BIH:z+Cg6KbbUcuwzXil

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main payload 6 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 5 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\4d02985363a38bd89d0b851cd8e8af87_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4d02985363a38bd89d0b851cd8e8af87_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:3300
      • C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.exe
        "C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4976
        • C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.exe
          "C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.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:1564
        • C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.exe
          "C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.exe" 2 1564 240596500
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:4140

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    985KB

    MD5

    4d02985363a38bd89d0b851cd8e8af87

    SHA1

    f2360145987081d33d32ac109bab3f5a690ed26f

    SHA256

    f5042e5664b6cacb1d8b6ceaa45529b9d3262c8a3ae1728d827702a33a2d0db3

    SHA512

    c4f9fd89cebd2d51ab7d6be134b471f468405b3895c898917361599130d38f1a8a52b385bf7a13e6347e95bc89d2aa3232531a1913ec43e2b06a100350d5ec63

  • memory/1564-41-0x00000000051B0000-0x000000000524C000-memory.dmp

    Filesize

    624KB

  • memory/1564-20-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1564-26-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1564-21-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1564-43-0x0000000005290000-0x00000000052F6000-memory.dmp

    Filesize

    408KB

  • memory/1564-59-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1564-48-0x0000000007710000-0x0000000007724000-memory.dmp

    Filesize

    80KB

  • memory/1564-47-0x0000000006790000-0x00000000067E0000-memory.dmp

    Filesize

    320KB

  • memory/1564-16-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1564-44-0x0000000005460000-0x00000000054F2000-memory.dmp

    Filesize

    584KB

  • memory/1564-19-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/1564-22-0x0000000000A40000-0x0000000000ADA000-memory.dmp

    Filesize

    616KB

  • memory/1564-45-0x0000000006740000-0x000000000674A000-memory.dmp

    Filesize

    40KB

  • memory/1564-42-0x0000000004BA0000-0x0000000004BE4000-memory.dmp

    Filesize

    272KB

  • memory/1564-40-0x0000000004C00000-0x00000000051A4000-memory.dmp

    Filesize

    5.6MB

  • memory/1564-39-0x0000000000A40000-0x0000000000ADA000-memory.dmp

    Filesize

    616KB

  • memory/2156-4-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/2156-0-0x0000000002260000-0x0000000002261000-memory.dmp

    Filesize

    4KB

  • memory/2156-3-0x0000000003E70000-0x0000000003E71000-memory.dmp

    Filesize

    4KB

  • memory/2156-1-0x0000000003E50000-0x0000000003E61000-memory.dmp

    Filesize

    68KB

  • memory/3300-5-0x0000000000D60000-0x0000000000D61000-memory.dmp

    Filesize

    4KB

  • memory/4140-60-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/4976-15-0x00000000022C0000-0x00000000022C1000-memory.dmp

    Filesize

    4KB

  • memory/4976-13-0x0000000002430000-0x0000000002441000-memory.dmp

    Filesize

    68KB

  • memory/4976-12-0x0000000002250000-0x0000000002251000-memory.dmp

    Filesize

    4KB

  • memory/4976-25-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB