Analysis

  • max time kernel
    96s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 Windows directory 16 IoCs
  • Loads dropped DLL 9 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 55 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 6 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:1504
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4208
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C15A32EEFCE500110962F026CA672BD7
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:408
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        -NoProfile -Noninteractive -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\pssB103.ps1" -propFile "C:\Users\Admin\AppData\Local\Temp\msiB100.txt" -scriptFile "C:\Users\Admin\AppData\Local\Temp\scrB101.ps1" -scriptArgsFile "C:\Users\Admin\AppData\Local\Temp\scrB102.txt" -propSep " :<->: " -lineSep " <<:>> " -testPrefix "_testValue."
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1180

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        __PSScriptPolicyTest_cyx5r3zz.ac4.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cyx5r3zz.ac4.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        msiB100.txt

        • Path C:\Users\Admin\AppData\Local\Temp\msiB100.txt
        • Size 54B
        • SHA256 5473347620e53c8292b2572924addc315edc96f0d454f43a84bcdfbd964684eb
        • MD5 SHA1 SHA512

        pssB103.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\pssB103.ps1
        • Size 6KB
        • SHA256 53094df6fa4e57a3265ff04bc1e970c10bcdb3d4094ad6dd610c05b7a8b79e0f
        • MD5 SHA1 SHA512 SSDEEP

        scrB101.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\scrB101.ps1
        • Size 250B
        • SHA256 700080d274e5629a2bfa0d47b9baf53ad69e67a64a2b04d84115d5851ab3ddbd
        • MD5 SHA1 SHA512

        MSI8F11.tmp

        • Path C:\Windows\Installer\MSI8F11.tmp
        • Size 997KB
        • SHA256 7bbf611f5e2a16439dc8cd11936f6364f6d5cc0044545c92775da5646afc7752
        • MD5 SHA1 SHA512 SSDEEP

        MSI91F3.tmp

        • Path C:\Windows\Installer\MSI91F3.tmp
        • Size 1.1MB
        • SHA256 d0a6f6373cfb902fcd95bc12360a9e949f5597b72c01e0bd328f9b1e2080b5b7
        • MD5 SHA1 SHA512 SSDEEP

        MSIA918.tmp

        • Path C:\Windows\Installer\MSIA918.tmp
        • Size 371KB
        • SHA256 7484797ea4480bc71509fa28b16e607f82323e05c44f59ffa65db3826ed1b388
        • MD5 SHA1 SHA512 SSDEEP

        MSIB06D.tmp

        • Path C:\Windows\Installer\MSIB06D.tmp
        • Size 769KB
        • SHA256 ccb57bdbb19e1aeb2c8dd3845cdc53880c1979284e7b26a1d8ae73bbeaf25474
        • MD5 SHA1 SHA512 SSDEEP

        memory/1180-63-0x0000000005760000-0x0000000005AB4000-memory.dmp

        memory/1180-53-0x00000000056F0000-0x0000000005756000-memory.dmp

        memory/1180-52-0x0000000005680000-0x00000000056E6000-memory.dmp

        memory/1180-64-0x0000000005D30000-0x0000000005D4E000-memory.dmp

        memory/1180-65-0x0000000005D70000-0x0000000005DBC000-memory.dmp

        memory/1180-51-0x00000000054E0000-0x0000000005502000-memory.dmp

        memory/1180-67-0x00000000074A0000-0x0000000007B1A000-memory.dmp

        memory/1180-68-0x0000000006280000-0x000000000629A000-memory.dmp

        memory/1180-69-0x0000000006D20000-0x0000000006DB6000-memory.dmp

        memory/1180-70-0x0000000006310000-0x0000000006332000-memory.dmp

        memory/1180-71-0x00000000080D0000-0x0000000008674000-memory.dmp

        memory/1180-50-0x0000000004EB0000-0x00000000054D8000-memory.dmp

        memory/1180-49-0x0000000002750000-0x0000000002786000-memory.dmp