Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    04/07/2024, 08:30

General

  • Target

    Install.msi

  • Size

    69.9MB

  • MD5

    b51388e010257246e9205c9b2397b6c4

  • SHA1

    241e60ed5f9eeee2433d5cf8bb36373dece27600

  • SHA256

    e2cad949f6cc9e2c9cea1a67fafa8dfabdf00269266edc5470dc52f3d1732d88

  • SHA512

    4eba416f75e823979b2d5afdf1e1ebb476531fe86e337e164494715289492678d4789dc977c60396eab958c9c28e4dcf0a0cb4aa7567e06b356a1582d70866d4

  • SSDEEP

    1572864:pG+zyyai+KWz0seQNc9PUOY3jOqtX4TZsgi9ywU9aY2aFe4+S96rbsyGVBLp:5bJWzzcMOqtElwEaY2UB+S94O

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Windows directory 7 IoCs
  • Loads dropped DLL 2 IoCs
  • Event Triggered Execution: Installer Packages 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious use of AdjustPrivilegeToken 55 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Install.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2644
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B19F3881DD125E298C17445705C046A5
      2⤵
      • Loads dropped DLL
      PID:2884
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2652
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000570" "00000000000005B0"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2832

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\Installer\MSI4328.tmp

          Filesize

          719KB

          MD5

          89f70b588a48793450dd603b6cd4096f

          SHA1

          9b6509c031856c715d62853c4e93efbdf48d5aeb

          SHA256

          066c52ed8ebf63a33ab8290b7c58d0c13f79c14faa8bf12b1b41f643d3ebe281

          SHA512

          fb04c530430eea6149fd7216f64751e641394a66c0cb222f70c29361baa621a78f906e0adff19bd4cbe5de69edcea7e40bff7c2e068fd4dbd057ca6494db861a