Analysis

  • max time kernel
    42s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 21:43

General

  • Target

    PO#7A68D20.exe

  • Size

    769KB

  • MD5

    5c777e4901a8f4175342bca7978ee3d5

  • SHA1

    ebc2a18781d087ed9fd7e43467f0da354c17d8c3

  • SHA256

    b54934cb8e1ff68d2c4306e5a6eb0f9e649ad1680960253c0cfa0c35a6c4d313

  • SHA512

    1113200c02673171d0e1ff8b9d049deea3a23c9e64f9ad211b0f99a5d8876f590a89e0fb6a57a32d90d686c2aa76df3bc496ac09e2ad8dec8750d11593947720

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 27 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:452
    • C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe
      "{path}"
      2⤵
        PID:988
      • C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe
        "{path}"
        2⤵
        • Modifies system executable filetype association
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        PID:1720
      • C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe
        "{path}"
        2⤵
          PID:1092

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

      • memory/452-54-0x0000000075361000-0x0000000075363000-memory.dmp

        Filesize

        8KB

      • memory/452-55-0x00000000744D0000-0x0000000074A7B000-memory.dmp

        Filesize

        5.7MB

      • memory/1720-70-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-67-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-66-0x00000000004080E4-mapping.dmp

      • memory/1720-69-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-65-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-63-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-61-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-60-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-59-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-57-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-56-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1720-62-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB