Analysis

  • max time kernel
    39s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 21:43

General

  • Target

    0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363.exe

  • Size

    252KB

  • MD5

    044626347c403a9fa5370006cd52f2ec

  • SHA1

    57f68fe970b1367fb38d3bc4e4434ef76c148a31

  • SHA256

    0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363

  • SHA512

    9b088e9b3bde254c7603b9a3b74f46f1c2162dfd31166ad18b84d3eae3320d50411ce5cb4638628028d4a4a9087dbe383c9c9f0224769f8cb5e9271fcd5a832f

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs

    Modifies file attributes to stop it showing in Explorer etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363.exe
    "C:\Users\Admin\AppData\Local\Temp\0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363.exe" +s +h
        3⤵
        • Views/modifies file attributes
        PID:1992
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Views/modifies file attributes
        PID:1964

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1092-54-0x0000000075E51000-0x0000000075E53000-memory.dmp

    Filesize

    8KB

  • memory/1964-58-0x0000000000000000-mapping.dmp

  • memory/1984-56-0x0000000000000000-mapping.dmp

  • memory/1992-57-0x0000000000000000-mapping.dmp

  • memory/2012-55-0x0000000000000000-mapping.dmp