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Analysis

  • max time kernel
    142s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/02/2024, 06:02

General

  • Target

    2024-02-25_bcc4055ea38c9fc5353359c6aa35b38b_mafia_nionspy.exe

  • Size

    280KB

  • MD5

    bcc4055ea38c9fc5353359c6aa35b38b

  • SHA1

    4d9d4f74f0d971334476d3fc17a02293855f0bc6

  • SHA256

    52d340475238a6f64cec9c0873733884147151293295bdaafc423c2ed855353c

  • SHA512

    f399f1f5372a1ccc0583be4b8b50a3cee3b40f6dd9f31e82cff996241323909a49bca689ecb63c4e2dbec4e6fdb6bca5b3e6e092abc03cc3dd53278664dd9e48

  • SSDEEP

    6144:oTz+WrPFZvTXb4RyW42vFlOloh2E+7pYUozDK:oTBPFV0RyWl3h2E+7pl

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\2024-02-25_bcc4055ea38c9fc5353359c6aa35b38b_mafia_nionspy.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-25_bcc4055ea38c9fc5353359c6aa35b38b_mafia_nionspy.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4584
    • 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:3444
      • C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Posix\csrssys.exe"
        3⤵
        • Executes dropped EXE
        PID:4800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    280KB

    MD5

    d7a55ab814dceb25a14d028b57642b7d

    SHA1

    1e7aea36d8fbd39496a94aa96ca139cbd19a21e0

    SHA256

    1f2b75358e38e793425bba38d1aa7974a2748dc4ae926cde2c2c95787fec7b4d

    SHA512

    f4ecaa8d2d179d266c903d5df0046c39fcbc341167c875b90698a9c3d4eea2f8cca6e179796d99387736dad72b391cec160e2edd3125a01a18b51e380330ac85