Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/01/2024, 12:34

General

  • Target
    SCMx86/setup.exe
  • Size 420KB
  • Sample240122-prrm8afdfl
  • SHA256 f0fbc759f323f60f4253516b95c31a3f9062f68c26551fdb5ba842483d2fadb6
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SCMx86\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\SCMx86\setup.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3304
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe" -I "C:\Users\Admin\AppData\Local\Temp\SCMx86\SCMx86Setup.msi"
      2⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4540
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4576
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 7B120871C254FC920829605BC90C4141 C
      2⤵
      • Loads dropped DLL
      PID:700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        MSIEA8F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\MSIEA8F.tmp
        • Size 231KB
        • SHA256 82bba027d920fac29385c1a6752f2337a3ae4b1944a29a72d2864017abeaa8d9
        • MD5 SHA1 SHA512 SSDEEP