Analysis

  • max time kernel
    38s
  • max time network
    40s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2024, 12:20

General

  • Target
    setup.msi
  • Size 57.5MB
  • Sample241226-phq1bsvrep
  • SHA256 404e2b3ecd486cf7a533790edbe22ab145c767f8c413a95570b0cc41c3b46143
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • 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 System32 directory 1 IoCs
  • Drops file in Windows directory 14 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 17 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\setup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1040
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AD811B03BA8142D424C017F322D0B247
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2676
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        -NoProfile -Noninteractive -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\pss96B9.ps1" -propFile "C:\Users\Admin\AppData\Local\Temp\msi96B6.txt" -scriptFile "C:\Users\Admin\AppData\Local\Temp\scr96B7.ps1" -scriptArgsFile "C:\Users\Admin\AppData\Local\Temp\scr96B8.txt" -propSep " :<->: " -lineSep " <<:>> " -testPrefix "_testValue."
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:440
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\suriqk.bat" "C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\ImporterREDServer.exe""
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2240
      • C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\ImporterREDServer.exe
        "C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\ImporterREDServer.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1596
    • C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\createdump.exe
      "C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\createdump.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2084

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        f777488.rbs

        • Path C:\Config.Msi\f777488.rbs
        • Size 19KB
        • SHA256 4e1d7ed74b7dbfcbd106cb3300034ddab4064a9f8afacbc497f3a35c917590bc
        • MD5 SHA1 SHA512 SSDEEP

        pss96B9.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\pss96B9.ps1
        • Size 6KB
        • SHA256 53094df6fa4e57a3265ff04bc1e970c10bcdb3d4094ad6dd610c05b7a8b79e0f
        • MD5 SHA1 SHA512 SSDEEP

        scr96B7.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\scr96B7.ps1
        • Size 250B
        • SHA256 700080d274e5629a2bfa0d47b9baf53ad69e67a64a2b04d84115d5851ab3ddbd
        • MD5 SHA1 SHA512

        ImporterREDServer.exe

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\ImporterREDServer.exe
        • Size 114KB
        • SHA256 4d434bb99c771524c35222e5c65ebee87fd2f16dda05bf6191f9723eece2434d
        • MD5 SHA1 SHA512 SSDEEP

        api-ms-win-core-file-l1-2-0.dll

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\api-ms-win-core-file-l1-2-0.dll
        • Size 11KB
        • SHA256 7a3c5167731238cf262f749aa46ab3bfb2ae1b22191b76e28e1d7499d28c24b7
        • MD5 SHA1 SHA512 SSDEEP

        api-ms-win-core-file-l2-1-0.dll

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\api-ms-win-core-file-l2-1-0.dll
        • Size 11KB
        • SHA256 349a79fa1572e3538dfbb942610d8c47d03e8a41b98897bc02ec7e897d05237e
        • MD5 SHA1 SHA512 SSDEEP

        api-ms-win-core-localization-l1-2-0.dll

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\api-ms-win-core-localization-l1-2-0.dll
        • Size 13KB
        • SHA256 059cb23fdcf4d80b92e3da29e9ef4c322edf6fba9a1837978fd983e9bdfc7413
        • MD5 SHA1 SHA512 SSDEEP

        api-ms-win-core-processthreads-l1-1-1.dll

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\api-ms-win-core-processthreads-l1-1-1.dll
        • Size 11KB
        • SHA256 25a99bdf8bf4d16077dc30dd9ffef7bb5a2ceaf9afcee7cf52ad408355239d40
        • MD5 SHA1 SHA512 SSDEEP

        createdump.exe

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\createdump.exe
        • Size 56KB
        • SHA256 b2acb555e6d5c6933a53e74581fd68d523a60bcd6bd53e4a12d9401579284ffd
        • MD5 SHA1 SHA512 SSDEEP

        dvacore.dll

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\dvacore.dll
        • Size 4.4MB
        • SHA256 22d7c730c0092cde5e339276f45882acf4e172269153c6a328d83314dbacef4b
        • MD5 SHA1 SHA512 SSDEEP

        suriqk.bat

        • Path C:\Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\suriqk.bat
        • Size 22B
        • SHA256 edfacd2d5328e4fff172e0c21a54cc90baf97477931b47b0a528bfe363ef7c7e
        • MD5 SHA1 SHA512

        MSI754F.tmp

        • Path C:\Windows\Installer\MSI754F.tmp
        • Size 997KB
        • SHA256 7bbf611f5e2a16439dc8cd11936f6364f6d5cc0044545c92775da5646afc7752
        • MD5 SHA1 SHA512 SSDEEP

        MSI76A8.tmp

        • Path C:\Windows\Installer\MSI76A8.tmp
        • Size 1.1MB
        • SHA256 d0a6f6373cfb902fcd95bc12360a9e949f5597b72c01e0bd328f9b1e2080b5b7
        • MD5 SHA1 SHA512 SSDEEP

        MSI8F3A.tmp

        • Path C:\Windows\Installer\MSI8F3A.tmp
        • Size 371KB
        • SHA256 7484797ea4480bc71509fa28b16e607f82323e05c44f59ffa65db3826ed1b388
        • MD5 SHA1 SHA512 SSDEEP

        MSI962E.tmp

        • Path C:\Windows\Installer\MSI962E.tmp
        • Size 769KB
        • SHA256 ccb57bdbb19e1aeb2c8dd3845cdc53880c1979284e7b26a1d8ae73bbeaf25474
        • MD5 SHA1 SHA512 SSDEEP

        api-ms-win-core-synch-l1-2-0.dll

        • Path \Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\api-ms-win-core-synch-l1-2-0.dll
        • Size 11KB
        • SHA256 1c72ac404781a9986d8edeb0ee5dd39d2c27ce505683ca3324c0eccd6193610a
        • MD5 SHA1 SHA512 SSDEEP

        api-ms-win-core-timezone-l1-1-0.dll

        • Path \Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\api-ms-win-core-timezone-l1-1-0.dll
        • Size 11KB
        • SHA256 3d798b9c345a507e142e8dacd7fb6c17528cc1453abfef2ffa9710d2fa9e032c
        • MD5 SHA1 SHA512 SSDEEP

        api-ms-win-crt-convert-l1-1-0.dll

        • Path \Users\Admin\AppData\Roaming\Weqos Apps Industries\Cave App\api-ms-win-crt-convert-l1-1-0.dll
        • Size 15KB
        • SHA256 6c008be766c44bf968c9e91cddc5b472110beffee3106a99532e68c605c78d44
        • MD5 SHA1 SHA512 SSDEEP