Analysis

  • max time kernel
    32s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 10:47

General

  • Target

    b96479927cd9bf865b2b38a75218233b175562469442e98f6e06d43024771fff.exe

  • Size

    368KB

  • MD5

    43feb6aa669864df86c74aaf7a10e91a

  • SHA1

    d0d7346f44acb1a28a18598a471239970765e864

  • SHA256

    b96479927cd9bf865b2b38a75218233b175562469442e98f6e06d43024771fff

  • SHA512

    75df5fe99776d9020589bc5060c1d0e6c432584f70d226c9c999c883b658684dc26492f516d13cc011261f25c480f9020548b60045738c5468cb571eec4b702d

  • SSDEEP

    6144:ygL92UU48OOlg/gwpewysMzEYUM9Kwn832M6w6j0p:9LxU5O/gWysMIYlK4AlOj0p

Score
5/10

Malware Config

Signatures

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b96479927cd9bf865b2b38a75218233b175562469442e98f6e06d43024771fff.exe
    "C:\Users\Admin\AppData\Local\Temp\b96479927cd9bf865b2b38a75218233b175562469442e98f6e06d43024771fff.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Users\Admin\AppData\Local\Temp\b96479927cd9bf865b2b38a75218233b175562469442e98f6e06d43024771fff.exe
      "C:\Users\Admin\AppData\Local\Temp\b96479927cd9bf865b2b38a75218233b175562469442e98f6e06d43024771fff.exe"
      2⤵
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1948
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\Start.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1572
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Associations /v ModRiskFileTypes /t REG_SZ /d .exe /f
          4⤵
          • Modifies registry key
          PID:1412
        • C:\Windows\SysWOW64\gpupdate.exe
          gpupdate /force
          4⤵
            PID:1240

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Start.bat

      Filesize

      200B

      MD5

      9cedeb0b293d2b5491225ef3d9eb2a8b

      SHA1

      b607ef9bd319b6ec696c8dab8a314998d133298b

      SHA256

      3fc59706783a0778da9121da52a63e34e47c82f436d5b14943e14fb418fd4f08

      SHA512

      ec7d4544e32b1ea460895b1037a9eca2529eed45d6ee1644f83dfc4d4ad8f7c32a811ee4627bc6b243fb5d5c9e3e2b22060d6a2903692830ff1f114d2b9f3cfc

    • memory/1948-59-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1948-62-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1948-54-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1948-65-0x0000000075A11000-0x0000000075A13000-memory.dmp

      Filesize

      8KB

    • memory/1948-66-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1948-68-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1948-61-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1948-57-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1948-55-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB