Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 23:43

General

  • Target

    2024-05-22_b70976a44e3d453d9576b5563a87d62a_mafia_nionspy.exe

  • Size

    274KB

  • MD5

    b70976a44e3d453d9576b5563a87d62a

  • SHA1

    1ffcb8acc68e296f4be4b466d1ae24b073d1cd49

  • SHA256

    8f094a5790367ef70031ef36df3c254ea8d4f370252c211045a537b435043447

  • SHA512

    3fa3708757052179939cddf69d7366285083eb977497856c627025885cfbc2c8ea873ac0d3eef7bce47a756a501821ccbab205e556e32e276daec7a44288589d

  • SSDEEP

    6144:rYvZ6brUj+bvqHXSpWr2Kqz83Oad3Jg4PlPDIQ+KLzDDg:rYvEbrUjp3SpWggd3JBPlPDIQ3g

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-22_b70976a44e3d453d9576b5563a87d62a_mafia_nionspy.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-22_b70976a44e3d453d9576b5563a87d62a_mafia_nionspy.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2536
      • C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe"
        3⤵
        • Executes dropped EXE
        PID:3548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe

    Filesize

    274KB

    MD5

    3e60a5ea48f8074efa9236609a41e5ec

    SHA1

    352f21c833609fa288652a0be58275afe6fb968e

    SHA256

    0f751df40e9edd813ff381c7ab3c538c6899cb08107d8427090be34a65e69700

    SHA512

    616faf6c5df0cbe013306bf19698f26ebeb248a6a04916df4c3a97c0735de16eacb59d324a97313ab97bf1a082b72864d1a648ebc746d71e681fcd40d33da623