Analysis

  • max time kernel
    4294181s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    26-03-2022 06:22

General

  • Target

    ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb.exe

  • Size

    2.3MB

  • MD5

    f8c69df94419c5ba3460568086f4ad77

  • SHA1

    24acca8e69f8b99dd9b3db8d75a58b2aa4d33011

  • SHA256

    ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb

  • SHA512

    54ce4e9e52fa64123c75317a405c6b2e1a2f639f4deea1b8c76f13e34157ce36f3f361c1c3b3d9d5d9640e35a7b5139f66a86d3b99449c6562d218c0183a2432

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb.exe
    "C:\Users\Admin\AppData\Local\Temp\ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xCtDXgUtklECz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA9D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1156
    • C:\Users\Admin\AppData\Local\Temp\ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb.exe
      "C:\Users\Admin\AppData\Local\Temp\ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb.exe"
      2⤵
        PID:1752
      • C:\Users\Admin\AppData\Local\Temp\ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb.exe
        "C:\Users\Admin\AppData\Local\Temp\ac4838da38ffb7ca95d3c7a6d4472577f8a37f575f68151db6c5aee8175bf8cb.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 624
          3⤵
          • Program crash
          PID:1168

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1824-54-0x0000000000DA0000-0x0000000000FF2000-memory.dmp

      Filesize

      2.3MB

    • memory/1824-55-0x0000000000530000-0x000000000054C000-memory.dmp

      Filesize

      112KB

    • memory/1824-56-0x00000000059E0000-0x0000000005B66000-memory.dmp

      Filesize

      1.5MB

    • memory/1824-57-0x0000000000800000-0x000000000080A000-memory.dmp

      Filesize

      40KB

    • memory/1824-58-0x0000000005CC0000-0x0000000005E0E000-memory.dmp

      Filesize

      1.3MB

    • memory/2008-62-0x0000000000400000-0x000000000054C000-memory.dmp

      Filesize

      1.3MB

    • memory/2008-64-0x0000000000400000-0x000000000054C000-memory.dmp

      Filesize

      1.3MB

    • memory/2008-65-0x0000000000400000-0x000000000054C000-memory.dmp

      Filesize

      1.3MB

    • memory/2008-66-0x0000000000400000-0x000000000054C000-memory.dmp

      Filesize

      1.3MB

    • memory/2008-69-0x0000000000400000-0x000000000054C000-memory.dmp

      Filesize

      1.3MB

    • memory/2008-71-0x0000000000400000-0x000000000054C000-memory.dmp

      Filesize

      1.3MB

    • memory/2008-72-0x00000000752C1000-0x00000000752C3000-memory.dmp

      Filesize

      8KB

    • memory/2008-61-0x0000000000400000-0x000000000054C000-memory.dmp

      Filesize

      1.3MB