Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/03/2024, 05:52

General

  • Target

    b3f342c6035383ee95794105ebf46fd8.exe

  • Size

    330KB

  • MD5

    b3f342c6035383ee95794105ebf46fd8

  • SHA1

    dc4c43a34838415231aeb1b4c8487cd014bfb9d4

  • SHA256

    04f0962f590e6d76c46a83447a9d59cbf35fa8503d6891701ffdc9e4be48ee06

  • SHA512

    ff211681e15b53ae2baba0117906a9df8101658dc3b64031a56eb4bd671f4186059f6801224ef2cd3481cfba9ad808ebabb459a6e6f1dec1112674aafd7eab1e

  • SSDEEP

    6144:deuHeBitK3PsspuxCKpSqvHr9dXi6k6A5gtdx4ydTZ2UHzCqbI:kieBitAuxLlxBih5kX9CqbI

Score
7/10

Malware Config

Signatures

  • UPX packed file 14 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks for any installed AV software in registry 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe
    "C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe
      "C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe" "C:\Users\Admin\AppData\Local\Temp\b3f342c6035383ee95794105ebf46fd8.exe"
      2⤵
      • Adds Run key to start application
      • Checks for any installed AV software in registry
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill.exe /F /IM MSASCui* /IM avg* /IM ash* /IM McSA* /IM msse*
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2440

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1224-5-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2692-11-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-20-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2692-7-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-8-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-9-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-4-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-10-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-12-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-0-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-21-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-23-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-26-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-29-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-30-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/2692-36-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB