Analysis

  • max time kernel
    136s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    19-04-2022 06:10

General

  • Target

    8d6989c0f3e9d15ce471a85afa2a7a9e6883ae9da2b0ba6c48f79d57c2077f6b.exe

  • Size

    2.1MB

  • MD5

    eb9f248851f24dd3d9eed53a18b53a46

  • SHA1

    75183df9d894d88afa08a80d1b35ff5f1122b427

  • SHA256

    8d6989c0f3e9d15ce471a85afa2a7a9e6883ae9da2b0ba6c48f79d57c2077f6b

  • SHA512

    c2c3f554e9b8d573aaec7b68992b5b289cd99c6e5ba7bd589365d8751076d20cfbe60aa89eea538dc9ca314ae92db4ebb1f4d12d9291a878f1abd28d921c8891

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 42 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d6989c0f3e9d15ce471a85afa2a7a9e6883ae9da2b0ba6c48f79d57c2077f6b.exe
    "C:\Users\Admin\AppData\Local\Temp\8d6989c0f3e9d15ce471a85afa2a7a9e6883ae9da2b0ba6c48f79d57c2077f6b.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3316
    • C:\Users\Admin\AppData\Local\Temp\8d6989c0f3e9d15ce471a85afa2a7a9e6883ae9da2b0ba6c48f79d57c2077f6b.exe
      "C:\Users\Admin\AppData\Local\Temp\8d6989c0f3e9d15ce471a85afa2a7a9e6883ae9da2b0ba6c48f79d57c2077f6b.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:3016
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\8d6989c0f3e9d15ce471a85afa2a7a9e6883ae9da2b0ba6c48f79d57c2077f6b.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4412
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3316 -s 1116
      2⤵
      • Program crash
      PID:1080
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3316 -ip 3316
    1⤵
      PID:3656

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3016-142-0x0000000005943000-0x0000000005945000-memory.dmp

      Filesize

      8KB

    • memory/3016-135-0x0000000000000000-mapping.dmp

    • memory/3016-136-0x0000000000400000-0x0000000000486000-memory.dmp

      Filesize

      536KB

    • memory/3016-137-0x0000000007060000-0x00000000070C6000-memory.dmp

      Filesize

      408KB

    • memory/3016-139-0x0000000007800000-0x0000000007850000-memory.dmp

      Filesize

      320KB

    • memory/3316-132-0x0000000006030000-0x00000000065D4000-memory.dmp

      Filesize

      5.6MB

    • memory/3316-130-0x0000000000DF0000-0x0000000001016000-memory.dmp

      Filesize

      2.1MB

    • memory/3316-133-0x0000000005B20000-0x0000000005BB2000-memory.dmp

      Filesize

      584KB

    • memory/3316-134-0x0000000005A90000-0x0000000005A9A000-memory.dmp

      Filesize

      40KB

    • memory/3316-131-0x0000000005940000-0x00000000059DC000-memory.dmp

      Filesize

      624KB

    • memory/4412-156-0x00000000076A0000-0x00000000076A8000-memory.dmp

      Filesize

      32KB

    • memory/4412-149-0x0000000006720000-0x000000000673E000-memory.dmp

      Filesize

      120KB

    • memory/4412-140-0x0000000004AB0000-0x0000000004AE6000-memory.dmp

      Filesize

      216KB

    • memory/4412-138-0x0000000000000000-mapping.dmp

    • memory/4412-151-0x0000000007480000-0x000000000749A000-memory.dmp

      Filesize

      104KB

    • memory/4412-145-0x0000000006160000-0x000000000617E000-memory.dmp

      Filesize

      120KB

    • memory/4412-146-0x0000000004BD5000-0x0000000004BD7000-memory.dmp

      Filesize

      8KB

    • memory/4412-147-0x0000000007100000-0x0000000007132000-memory.dmp

      Filesize

      200KB

    • memory/4412-148-0x0000000070E80000-0x0000000070ECC000-memory.dmp

      Filesize

      304KB

    • memory/4412-141-0x0000000005210000-0x0000000005838000-memory.dmp

      Filesize

      6.2MB

    • memory/4412-150-0x0000000007AC0000-0x000000000813A000-memory.dmp

      Filesize

      6.5MB

    • memory/4412-144-0x00000000058B0000-0x0000000005916000-memory.dmp

      Filesize

      408KB

    • memory/4412-152-0x00000000074F0000-0x00000000074FA000-memory.dmp

      Filesize

      40KB

    • memory/4412-153-0x0000000007700000-0x0000000007796000-memory.dmp

      Filesize

      600KB

    • memory/4412-154-0x00000000076C0000-0x00000000076CE000-memory.dmp

      Filesize

      56KB

    • memory/4412-155-0x00000000077E0000-0x00000000077FA000-memory.dmp

      Filesize

      104KB

    • memory/4412-143-0x0000000005190000-0x00000000051B2000-memory.dmp

      Filesize

      136KB