Analysis

  • max time kernel
    39s
  • max time network
    25s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2024 17:51

General

  • Target

    VTRL_2.2.4_x64_en-US.msi

  • Size

    2.5MB

  • MD5

    7853374c6d4f75c1279214f4b843de50

  • SHA1

    3a70bad9f2e54f67d03a9e818cae104f96b91fd6

  • SHA256

    a1b403271c4f1a39c70279f3d73583c508c7211e7606521850b4c27946d5fd7a

  • SHA512

    be2a6ec34dbe59fa5720b0a896793330628e9d7bc32d0aab58b7e9ee1d5a196de22407eb7c6422792f24a7a65f3d365b74ede30c613330d180270c3604ac5fba

  • SSDEEP

    49152:Y3wyGm52xuSiBt3rjbnim6P4taxfw9wzlcYgyTZatnWvZgkj4m:WxAxjirr3i5kcfw9w5cYRaov8m

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • UPX packed file 2 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 12 IoCs
  • Loads dropped DLL 7 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 51 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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\VTRL_2.2.4_x64_en-US.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2732
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Loads dropped DLL
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2840
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C78E3824154EDB813A961BCF51BAC9A3 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2552
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -windowstyle hidden try { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 } catch {}; Invoke-WebRequest -Uri "https://go.microsoft.com/fwlink/p/?LinkId=2124703" -OutFile "$env:TEMP\MicrosoftEdgeWebview2Setup.exe" ; Start-Process -FilePath "$env:TEMP\MicrosoftEdgeWebview2Setup.exe" -ArgumentList ('/silent', '/install') -Wait
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      PID:3044
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2540
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000004CC" "00000000000003DC"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:1796

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\VTRL\VTRL.lnk

      Filesize

      1KB

      MD5

      f0bb30fb0e5ea256f7f34572323ab760

      SHA1

      34aff58515bb5270e7861f793591551be0a55e7d

      SHA256

      e340b9d879ecebb1bf9fe08ec339ad55dedd14eaf73154307532fb319774275b

      SHA512

      f4f44fdd870dad8c999d1d78c44e0549f5060f168cb61b34df4f7a90d2b2b6e6a81e25783cec248208e31c9f472af8d238727adaad4c052ba184be18e71822f9

    • C:\Users\Admin\AppData\Local\Temp\MSI9231.tmp

      Filesize

      132KB

      MD5

      cfbb8568bd3711a97e6124c56fcfa8d9

      SHA1

      d7a098ae58bdd5e93a3c1b04b3d69a14234d5e57

      SHA256

      7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc

      SHA512

      860cbf3286ac4915580cefaf56a9c3d48938eb08e3f31b7f024c4339c037d7c8bdf16e766d08106505ba535be4922a87dc46bd029aae99a64ea2fc02cf3aec04

    • C:\Windows\Installer\f76c65b.msi

      Filesize

      2.5MB

      MD5

      7853374c6d4f75c1279214f4b843de50

      SHA1

      3a70bad9f2e54f67d03a9e818cae104f96b91fd6

      SHA256

      a1b403271c4f1a39c70279f3d73583c508c7211e7606521850b4c27946d5fd7a

      SHA512

      be2a6ec34dbe59fa5720b0a896793330628e9d7bc32d0aab58b7e9ee1d5a196de22407eb7c6422792f24a7a65f3d365b74ede30c613330d180270c3604ac5fba

    • \Program Files\VTRL\VTRL.exe

      Filesize

      2.0MB

      MD5

      8854573a5ad9f69248491b860a8473a7

      SHA1

      2112784e8b035413cdbf5b19afcfca90c9da47fb

      SHA256

      9aae8bfe7cb32e9c247feb67d97d3611c7c377dff7b6c42a779a0fae1bbf11b6

      SHA512

      21d20ef8bb0884dd0c9f1b9340c331ecd3a9f4127af55444a6fcbd2a49f91c6efdc730824e5529b80c1e9469a172ac140da411fa07268c295d0535921a66df61

    • memory/2840-18-0x000000013FF60000-0x000000013FF70000-memory.dmp

      Filesize

      64KB

    • memory/2840-32-0x000000013F590000-0x000000013F5A0000-memory.dmp

      Filesize

      64KB

    • memory/2840-65-0x000000013FF60000-0x000000013FF70000-memory.dmp

      Filesize

      64KB

    • memory/2840-66-0x000000013F590000-0x000000013F5A0000-memory.dmp

      Filesize

      64KB

    • memory/3044-41-0x000000001B3C0000-0x000000001B6A2000-memory.dmp

      Filesize

      2.9MB

    • memory/3044-42-0x0000000002910000-0x0000000002918000-memory.dmp

      Filesize

      32KB