Analysis

  • max time kernel
    94s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/06/2024, 16:07

General

  • Target
    375dbccaa8451b917097b50444b2ddeb9e43402172b6908e1182795dbae75904.msi
  • Size 5.4MB
  • Sample240618-tkzsgavdnp
  • SHA256 375dbccaa8451b917097b50444b2ddeb9e43402172b6908e1182795dbae75904
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • 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.

  • Drops file in Windows directory 13 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 10 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Installer Packages 1 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 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\375dbccaa8451b917097b50444b2ddeb9e43402172b6908e1182795dbae75904.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:5028
  • 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:532
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4364
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0D9F14BB9B269455D659E9164AC004F6
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2332
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        -NoProfile -Noninteractive -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\pss7C87.ps1" -propFile "C:\Users\Admin\AppData\Local\Temp\msi7C73.txt" -scriptFile "C:\Users\Admin\AppData\Local\Temp\scr7C74.ps1" -scriptArgsFile "C:\Users\Admin\AppData\Local\Temp\scr7C75.txt" -propSep " :<->: " -lineSep " <<:>> " -testPrefix "_testValue."
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3084
        • C:\Users\Admin\AppData\Local\SetupFiles\WebExperienceHostApp.exe
          "C:\Users\Admin\AppData\Local\SetupFiles\WebExperienceHostApp.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:3560
          • C:\ProgramData\Chrome\Application\118.0.5993.120\chrome.exe
            C:\ProgramData\Chrome\Application\118.0.5993.120\chrome.exe
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: EnumeratesProcesses
            PID:2348
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2552

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e577811.rbs

        • Path C:\Config.Msi\e577811.rbs
        • Size 655KB
        • SHA256 1688f28fd5da4ca62f1ea3a035cb44b633aa6f9fd6e9ae5652b68d7bfa99eba8
        • MD5 SHA1 SHA512 SSDEEP

        chrome.exe

        • Path C:\ProgramData\Chrome\Application\118.0.5993.120\chrome.exe
        • Size 2.7MB
        • SHA256 796284e881e951aca4b0ecc4c0ed5587bb3f1fd8b156e88ac9c147bfd49f9be9
        • MD5 SHA1 SHA512 SSDEEP

        chrome_elf.dll

        • Path C:\ProgramData\Chrome\Application\118.0.5993.120\chrome_elf.dll
        • Size 12.3MB
        • SHA256 7a561b08ac2e926d6b5d7f4fcdb6354613ac0832e9f4c23d5e206ed0b47a56c7
        • MD5 SHA1 SHA512 SSDEEP

        18062024.zip

        • Path C:\Users\Admin\AppData\Local\SetupFiles\18062024.zip
        • Size 23.2MB
        • SHA256 e79fe9b0606307cc820788c04750d1ed32910b2b99d3aec4abb0bdce13cbd23b
        • MD5 SHA1 SHA512 SSDEEP

        WebExperienceHostApp.exe

        • Path C:\Users\Admin\AppData\Local\SetupFiles\WebExperienceHostApp.exe
        • Size 54KB
        • SHA256 1e9cd852ef2e7233e12090ed41ba99019d533cc07edadfe5095cd0ddacc4fc1e
        • MD5 SHA1 SHA512 SSDEEP

        msvcp140_app.dll

        • Path C:\Users\Admin\AppData\Local\SetupFiles\msvcp140_app.dll
        • Size 557KB
        • SHA256 f7f46f09aa38b6faa5dbfd2b192eb9a5d63e9d5eec482624fc20e6686f59098d
        • MD5 SHA1 SHA512 SSDEEP

        vcruntime140_1_app.dll

        • Path C:\Users\Admin\AppData\Local\SetupFiles\vcruntime140_1_app.dll
        • Size 3.9MB
        • SHA256 dc04f46d8f9c4a03a91448def7ef93866c4996bdea784be28554128a4060384a
        • MD5 SHA1 SHA512 SSDEEP

        vcruntime140_app.dll

        • Path C:\Users\Admin\AppData\Local\SetupFiles\vcruntime140_app.dll
        • Size 95KB
        • SHA256 fff797e284cc21447515c478d1f97b89efb2a49a6ccef7d7f94b4df76b5789df
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_pulvsiwf.dxz.ps1

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

        pss7C87.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\pss7C87.ps1
        • Size 6KB
        • SHA256 53094df6fa4e57a3265ff04bc1e970c10bcdb3d4094ad6dd610c05b7a8b79e0f
        • MD5 SHA1 SHA512 SSDEEP

        scr7C74.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\scr7C74.ps1
        • Size 1KB
        • SHA256 3841721b0494fc9c5367c78122caef55faa0dfd94195800974ab9528f2ac86ee
        • MD5 SHA1 SHA512

        MSI784D.tmp

        • Path C:\Windows\Installer\MSI784D.tmp
        • Size 588KB
        • SHA256 39fd8d36f8e5d915ad571ea429db3c3de6e9c160dbea7c3e137c9ba4b7fd301d
        • MD5 SHA1 SHA512 SSDEEP

        MSI7B8F.tmp

        • Path C:\Windows\Installer\MSI7B8F.tmp
        • Size 649KB
        • SHA256 7a23e492658e6d38873f3ad82f41ec1fa45102da59fa8d87595d85dafca6fa98
        • MD5 SHA1 SHA512 SSDEEP

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 23.7MB
        • SHA256 30cfc8a020d645cdfc8bde41e30621473859985090413ffe3faa6ef7c38fb70a
        • MD5 SHA1 SHA512 SSDEEP

        {a8e138b1-e62d-4923-9c72-8705b4670759}_OnDiskSnapshotProp

        • Path \??\Volume{25d8ed48-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{a8e138b1-e62d-4923-9c72-8705b4670759}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 863afb34ea01b68cd4fb71b2310cf0eba5aea2e8121ddbf4689fcbafce5953e0
        • MD5 SHA1 SHA512 SSDEEP

        memory/2348-675-0x00007FFE55AD0000-0x00007FFE55AD2000-memory.dmp

        memory/2348-686-0x000001C015C90000-0x000001C015D13000-memory.dmp

        memory/2348-682-0x000000006ABD0000-0x000000006CE0A000-memory.dmp

        memory/2348-681-0x00007FFE53580000-0x00007FFE53582000-memory.dmp

        memory/2348-680-0x00007FFE53570000-0x00007FFE53572000-memory.dmp

        memory/2348-679-0x00007FFE55110000-0x00007FFE55112000-memory.dmp

        memory/2348-678-0x00007FFE54FD0000-0x00007FFE54FD2000-memory.dmp

        memory/2348-677-0x00007FFE55AF0000-0x00007FFE55AF2000-memory.dmp

        memory/2348-676-0x00007FFE55AE0000-0x00007FFE55AE2000-memory.dmp

        memory/3084-64-0x0000000005BE0000-0x0000000005C2C000-memory.dmp

        memory/3084-62-0x0000000005730000-0x0000000005A84000-memory.dmp

        memory/3084-70-0x0000000007B90000-0x0000000008134000-memory.dmp

        memory/3084-49-0x0000000004E90000-0x00000000054B8000-memory.dmp

        memory/3084-48-0x0000000002260000-0x0000000002296000-memory.dmp

        memory/3084-51-0x00000000054C0000-0x0000000005526000-memory.dmp

        memory/3084-52-0x0000000005530000-0x0000000005596000-memory.dmp

        memory/3084-50-0x0000000004BF0000-0x0000000004C12000-memory.dmp

        memory/3084-63-0x0000000005BA0000-0x0000000005BBE000-memory.dmp

        memory/3084-69-0x0000000006B80000-0x0000000006BA2000-memory.dmp

        memory/3084-66-0x0000000007510000-0x0000000007B8A000-memory.dmp

        memory/3084-67-0x00000000060E0000-0x00000000060FA000-memory.dmp

        memory/3084-68-0x0000000006E90000-0x0000000006F26000-memory.dmp

        memory/3560-670-0x000000006CA20000-0x000000006CE0F000-memory.dmp