Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2024 08:07

General

  • Target

    d7da46701d3da6ffd69d4c05bd6dea98_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    d7da46701d3da6ffd69d4c05bd6dea98

  • SHA1

    d68bde0b27b3a8b81fb69decf737ebdfd2bce8bd

  • SHA256

    0ca3dafa35066c7aaf4b76268b035cd0fe5fb10130bc5f9b04d723d50c974e82

  • SHA512

    40926fb7ff44e3ec52de3f32146be023fc80a1a7665ad3eb6e584ea97fb1db6fecf8222feb3df91c4f11f106b360294f8e30e594b7546853e704e26744a67db4

  • SSDEEP

    12288:ODb7BqrErn/mxx7E6vMJaxKwWoFJm6y2o/Yc4/P2x1AFvUQm5hGXV8PNyIMsGO1C:OFBrny7d7eqq2Z32sUQWAV8PCsGOU28d

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main payload 5 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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\d7da46701d3da6ffd69d4c05bd6dea98_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d7da46701d3da6ffd69d4c05bd6dea98_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:220
      • C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe
        "C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1896
        • C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe
          "C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1216
        • C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe
          "C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe" 2 1216 240660437
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:320
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4072,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4344 /prefetch:8
    1⤵
      PID:1492

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1.1MB

      MD5

      d7da46701d3da6ffd69d4c05bd6dea98

      SHA1

      d68bde0b27b3a8b81fb69decf737ebdfd2bce8bd

      SHA256

      0ca3dafa35066c7aaf4b76268b035cd0fe5fb10130bc5f9b04d723d50c974e82

      SHA512

      40926fb7ff44e3ec52de3f32146be023fc80a1a7665ad3eb6e584ea97fb1db6fecf8222feb3df91c4f11f106b360294f8e30e594b7546853e704e26744a67db4

    • memory/220-4-0x0000000000690000-0x0000000000691000-memory.dmp

      Filesize

      4KB

    • memory/320-47-0x0000000000400000-0x0000000000517000-memory.dmp

      Filesize

      1.1MB

    • memory/1216-41-0x0000000004C40000-0x0000000004C84000-memory.dmp

      Filesize

      272KB

    • memory/1216-24-0x0000000000BF0000-0x0000000000C8A000-memory.dmp

      Filesize

      616KB

    • memory/1216-50-0x0000000007600000-0x0000000007614000-memory.dmp

      Filesize

      80KB

    • memory/1216-49-0x00000000075A0000-0x00000000075F0000-memory.dmp

      Filesize

      320KB

    • memory/1216-45-0x0000000000400000-0x0000000000541000-memory.dmp

      Filesize

      1.3MB

    • memory/1216-44-0x0000000006750000-0x000000000675A000-memory.dmp

      Filesize

      40KB

    • memory/1216-16-0x0000000000400000-0x0000000000541000-memory.dmp

      Filesize

      1.3MB

    • memory/1216-19-0x0000000000400000-0x0000000000541000-memory.dmp

      Filesize

      1.3MB

    • memory/1216-25-0x0000000000BF0000-0x0000000000C8A000-memory.dmp

      Filesize

      616KB

    • memory/1216-43-0x0000000005450000-0x00000000054E2000-memory.dmp

      Filesize

      584KB

    • memory/1216-20-0x0000000000400000-0x0000000000541000-memory.dmp

      Filesize

      1.3MB

    • memory/1216-42-0x00000000052E0000-0x0000000005346000-memory.dmp

      Filesize

      408KB

    • memory/1216-21-0x0000000000400000-0x0000000000541000-memory.dmp

      Filesize

      1.3MB

    • memory/1216-39-0x0000000004D30000-0x00000000052D4000-memory.dmp

      Filesize

      5.6MB

    • memory/1216-40-0x0000000004B70000-0x0000000004C0C000-memory.dmp

      Filesize

      624KB

    • memory/1896-26-0x0000000000400000-0x0000000000517000-memory.dmp

      Filesize

      1.1MB

    • memory/1896-15-0x0000000002370000-0x0000000002371000-memory.dmp

      Filesize

      4KB

    • memory/1896-12-0x0000000002170000-0x0000000002171000-memory.dmp

      Filesize

      4KB

    • memory/2388-0-0x00000000006E0000-0x00000000006E1000-memory.dmp

      Filesize

      4KB

    • memory/2388-3-0x0000000000790000-0x0000000000791000-memory.dmp

      Filesize

      4KB

    • memory/2388-1-0x0000000000720000-0x0000000000730000-memory.dmp

      Filesize

      64KB

    • memory/2388-2-0x0000000000720000-0x0000000000730000-memory.dmp

      Filesize

      64KB

    • memory/2388-5-0x0000000000400000-0x0000000000517000-memory.dmp

      Filesize

      1.1MB