Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-05-2024 11:16

General

  • Target

    546bee912865993d10cffb8eb2ba6217_JaffaCakes118.exe

  • Size

    987KB

  • MD5

    546bee912865993d10cffb8eb2ba6217

  • SHA1

    d820779090e5c53e83b2a978a3e4bab3ec542860

  • SHA256

    5982827e27391c55ba90965651918a41129f6192503fd33abe2a40e441d8a336

  • SHA512

    710300c358f94c1936904af5aa7fa6a8667344bf06046ae35038e717d96cb9e8e0173182ffc6069bce4220ebb95aec3847eafd355c7029a668734390763cb5e0

  • SSDEEP

    24576:/rYUhzRsCg6Yn++QKS4Xkuo1EBeyJEXwuLkveyBV:z+Cg6Kbb1rBeyKBYWyBV

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main payload 7 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\546bee912865993d10cffb8eb2ba6217_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\546bee912865993d10cffb8eb2ba6217_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:4792
      • 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:4056
        • 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:3900
        • C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.exe
          "C:\Users\Admin\AppData\Roaming\appdata\hfjhfksfs.exe" 2 3900 240599656
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:3552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    987KB

    MD5

    546bee912865993d10cffb8eb2ba6217

    SHA1

    d820779090e5c53e83b2a978a3e4bab3ec542860

    SHA256

    5982827e27391c55ba90965651918a41129f6192503fd33abe2a40e441d8a336

    SHA512

    710300c358f94c1936904af5aa7fa6a8667344bf06046ae35038e717d96cb9e8e0173182ffc6069bce4220ebb95aec3847eafd355c7029a668734390763cb5e0

  • memory/2956-0-0x0000000000680000-0x0000000000681000-memory.dmp

    Filesize

    4KB

  • memory/2956-1-0x0000000000830000-0x0000000000841000-memory.dmp

    Filesize

    68KB

  • memory/2956-3-0x0000000000850000-0x0000000000851000-memory.dmp

    Filesize

    4KB

  • memory/2956-4-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/3552-58-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/3900-23-0x0000000000BE0000-0x0000000000C7A000-memory.dmp

    Filesize

    616KB

  • memory/3900-37-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3900-48-0x00000000076D0000-0x0000000007720000-memory.dmp

    Filesize

    320KB

  • memory/3900-16-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3900-45-0x0000000005460000-0x00000000054F2000-memory.dmp

    Filesize

    584KB

  • memory/3900-19-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3900-21-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3900-20-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3900-46-0x00000000063B0000-0x00000000063BA000-memory.dmp

    Filesize

    40KB

  • memory/3900-49-0x00000000065A0000-0x00000000065B4000-memory.dmp

    Filesize

    80KB

  • memory/3900-24-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3900-38-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/3900-22-0x0000000000BE0000-0x0000000000C7A000-memory.dmp

    Filesize

    616KB

  • memory/3900-42-0x0000000005130000-0x00000000051CC000-memory.dmp

    Filesize

    624KB

  • memory/3900-41-0x0000000004B80000-0x0000000005124000-memory.dmp

    Filesize

    5.6MB

  • memory/3900-43-0x0000000005200000-0x0000000005244000-memory.dmp

    Filesize

    272KB

  • memory/3900-44-0x0000000005280000-0x00000000052E6000-memory.dmp

    Filesize

    408KB

  • memory/4056-13-0x0000000000720000-0x0000000000731000-memory.dmp

    Filesize

    68KB

  • memory/4056-26-0x0000000000400000-0x00000000004FD000-memory.dmp

    Filesize

    1012KB

  • memory/4056-15-0x00000000022F0000-0x00000000022F1000-memory.dmp

    Filesize

    4KB

  • memory/4056-12-0x00000000006B0000-0x00000000006B1000-memory.dmp

    Filesize

    4KB

  • memory/4792-5-0x0000000000990000-0x0000000000991000-memory.dmp

    Filesize

    4KB