Analysis

  • max time kernel
    150s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/11/2024, 04:58

General

  • Target
    sougou_setup.msi
  • Size 157.6MB
  • Sample241118-fls5esymes
  • SHA256 4315a6afe728ff28580a4c7ef798c47ccd7a438bbf58e97aaffce26b837c7384
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 4 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 4 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Gh0strat family
  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Purplefox family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • UPX packed file 2 IoCs

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

  • Drops file in Program Files directory 21 IoCs
  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 10 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 22 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 28 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\sougou_setup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1796
  • 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
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:448
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1476
      • C:\Windows\System32\MsiExec.exe
        C:\Windows\System32\MsiExec.exe -Embedding 2EEDA5845DA4D05B3205F13B6C07DA59 E Global\MSI0000
        2⤵
        • Drops file in Program Files directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:1396
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\DriveHumbleTechnician'
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4388
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c start /min "" "C:\Program Files\DriveHumbleTechnician\eaHeznmosyoOWAGglCKDwYQViYXayS.exe" x "C:\Program Files\DriveHumbleTechnician\YJgbLqUbskWexDENSZyOncyGkufCAI" -o"C:\Program Files\DriveHumbleTechnician\" -p"37709OJvgn~xO.H..>S=" -y & ping 127.0.0.1 -n 2 & start /min "" "C:\Program Files\DriveHumbleTechnician\eaHeznmosyoOWAGglCKDwYQViYXayS.exe" x "C:\Program Files\DriveHumbleTechnician\fCwpAyMuVRIFHFczCVKWCOKCaXKCyQ" -x!1_yrjwPObnoqyg.exe -o"C:\Program Files\DriveHumbleTechnician\" -p"182119:SRG:B.Wa.ph~}" -y
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Suspicious use of WriteProcessMemory
          PID:1132
          • C:\Program Files\DriveHumbleTechnician\eaHeznmosyoOWAGglCKDwYQViYXayS.exe
            "C:\Program Files\DriveHumbleTechnician\eaHeznmosyoOWAGglCKDwYQViYXayS.exe" x "C:\Program Files\DriveHumbleTechnician\YJgbLqUbskWexDENSZyOncyGkufCAI" -o"C:\Program Files\DriveHumbleTechnician\" -p"37709OJvgn~xO.H..>S=" -y
            4⤵
            • Drops file in Program Files directory
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:1068
          • C:\Windows\system32\PING.EXE
            ping 127.0.0.1 -n 2
            4⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:3748
          • C:\Program Files\DriveHumbleTechnician\eaHeznmosyoOWAGglCKDwYQViYXayS.exe
            "C:\Program Files\DriveHumbleTechnician\eaHeznmosyoOWAGglCKDwYQViYXayS.exe" x "C:\Program Files\DriveHumbleTechnician\fCwpAyMuVRIFHFczCVKWCOKCaXKCyQ" -x!1_yrjwPObnoqyg.exe -o"C:\Program Files\DriveHumbleTechnician\" -p"182119:SRG:B.Wa.ph~}" -y
            4⤵
            • Drops file in Program Files directory
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:4108
        • C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.exe
          "C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.exe" -number 288 -file file3 -mode mode3
          3⤵
          • Drops file in Program Files directory
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3764
        • C:\Program Files\DriveHumbleTechnician\sougou.exe
          "C:\Program Files\DriveHumbleTechnician\sougou.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          PID:5024
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:1000
    • C:\Windows\System32\WScript.exe
      C:\Windows\System32\WScript.exe "C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.vbs"
      1⤵
      • Modifies data under HKEY_USERS
      PID:1776
    • C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.exe
      "C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.exe" install
      1⤵
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Executes dropped EXE
      PID:2564
    • C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.exe
      "C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.exe" start
      1⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      PID:524
    • C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.exe
      "C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.exe"
      1⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.exe
        "C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.exe" -number 272 -file file3 -mode mode3
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3244
        • C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.exe
          "C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.exe" -number 62 -file file3 -mode mode3
          3⤵
          • Enumerates connected drives
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          PID:4852

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          e583804.rbs

          • Path C:\Config.Msi\e583804.rbs
          • Size 7KB
          • SHA256 466814321de594181ff1a9fa34168f4324220ad0d47d84b007b6c80f7abaeb50
          • MD5 SHA1 SHA512 SSDEEP

          2_yrjwPObnoqyg.exe

          • Path C:\Program Files\DriveHumbleTechnician\2_yrjwPObnoqyg.exe
          • Size 2.1MB
          • SHA256 0099f9e565c7bb368d24fa3e497fb6cad33463ef13a02017f8d072bfb7185520
          • MD5 SHA1 SHA512 SSDEEP

          PpMCUaskmPAB.exe

          • Path C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.exe
          • Size 832KB
          • SHA256 923111c7142b3dc783a3c722b19b8a21bcb78222d7a136ac33f0ca8a29f4cb66
          • MD5 SHA1 SHA512 SSDEEP

          PpMCUaskmPAB.wrapper.log

          • Path C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.wrapper.log
          • Size 300B
          • SHA256 ff9be0b6088f7ea383f625847637d05f40013bba114e3ae693d72d9f311e28d2
          • MD5 SHA1 SHA512

          PpMCUaskmPAB.wrapper.log

          • Path C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.wrapper.log
          • Size 473B
          • SHA256 094615ecfd0219f0451ac0d310613cd34320a7ba52621b458bced18001cabb09
          • MD5 SHA1 SHA512

          PpMCUaskmPAB.wrapper.log

          • Path C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.wrapper.log
          • Size 656B
          • SHA256 0e27944828f7d20d8d1060affe85614398382d7b76244cba6ffbf68fcd977d49
          • MD5 SHA1 SHA512

          PpMCUaskmPAB.wrapper.log

          • Path C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.wrapper.log
          • Size 790B
          • SHA256 76db81d5c0075f0e6b79ff7d1162df62273b257cca283b427644b1c20d12836a
          • MD5 SHA1 SHA512

          PpMCUaskmPAB.xml

          • Path C:\Program Files\DriveHumbleTechnician\PpMCUaskmPAB.xml
          • Size 445B
          • SHA256 6430071f672054385dbcd25baee94eeafb5b82c51c279cb8f816e9082c0088ff
          • MD5 SHA1 SHA512

          YJgbLqUbskWexDENSZyOncyGkufCAI

          • Path C:\Program Files\DriveHumbleTechnician\YJgbLqUbskWexDENSZyOncyGkufCAI
          • Size 1.5MB
          • SHA256 f3d900a4ec1b331e7f29d56d6fb1617d5a8ad606cc9b0264d63961dbea99fb44
          • MD5 SHA1 SHA512 SSDEEP

          eaHeznmosyoOWAGglCKDwYQViYXayS.exe

          • Path C:\Program Files\DriveHumbleTechnician\eaHeznmosyoOWAGglCKDwYQViYXayS.exe
          • Size 577KB
          • SHA256 9d182f421381429fd77598feb609fefb54dcaef722ddbf5aa611b68a706c10d3
          • MD5 SHA1 SHA512 SSDEEP

          fCwpAyMuVRIFHFczCVKWCOKCaXKCyQ

          • Path C:\Program Files\DriveHumbleTechnician\fCwpAyMuVRIFHFczCVKWCOKCaXKCyQ
          • Size 1.5MB
          • SHA256 f881d7523aaec5dd3d96e2e9c6439ff703d57722d4061073b7321eda37c02329
          • MD5 SHA1 SHA512 SSDEEP

          yrjwPObnoqyg.vbs

          • Path C:\Program Files\DriveHumbleTechnician\yrjwPObnoqyg.vbs
          • Size 2KB
          • SHA256 ee4b4f26b8d36ba2ec844f526c18715841236aaa7fed06b9018ba9aa34a5a413
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_djwixb2m.h3c.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_djwixb2m.h3c.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          HWSignature.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\HWSignature.dll
          • Size 138KB
          • SHA256 e035633d5a97dbc492d125a379a198ddadb09547d4b576552016e690a573e339
          • MD5 SHA1 SHA512 SSDEEP

          ImageMagik.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\ImageMagik.dll
          • Size 5.9MB
          • SHA256 b550ed8935bbc51571aabfb5c3130d295909df89e7c4c1e204f219d88a652332
          • MD5 SHA1 SHA512 SSDEEP

          InstallOptions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\InstallOptions.dll
          • Size 15KB
          • SHA256 734d6299964cab87eeeb5f8c7e5bdf6aa8c3e29d938fdd1ada6addcd5006de28
          • MD5 SHA1 SHA512 SSDEEP

          SetupLib.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\SetupLib.dll
          • Size 6.0MB
          • SHA256 7dd85f1d4725ff05c35b6c0632992523a3f1cadb6294f516ef2528738b3a53af
          • MD5 SHA1 SHA512 SSDEEP

          SetupLibNew.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\SetupLibNew.dll
          • Size 3.9MB
          • SHA256 23a25b73fd5d66aef3abc0c90b1eeff2fd3921a7d49aa69891e926139969b31e
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\System.dll
          • Size 11KB
          • SHA256 93a8e95708882e56250ae55aef93417333b2dbe7ea99590abed34cdca2227e61
          • MD5 SHA1 SHA512 SSDEEP

          ioSpecial.ini

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\ioSpecial.ini
          • Size 958B
          • SHA256 de739cb211824d6d09e0e4c812793d39c7a097736ca66b97c36f66504345545f
          • MD5 SHA1 SHA512

          ioSpecial.ini

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\ioSpecial.ini
          • Size 1KB
          • SHA256 a10d17f65ef1a25591fbfcb3fd2f0310f71adb97ee4a236dc8f0bc8a506314a0
          • MD5 SHA1 SHA512

          validate.ini

          • Path C:\Users\Admin\AppData\Local\Temp\nsy6704.tmp\validate.ini
          • Size 87B
          • SHA256 5f60c14e1d82e49f4dd48c648c31bd572adf7a6e236aa7b2a8854bbc90d21c4a
          • MD5 SHA1 SHA512

          PpMCUaskmPAB.exe.log

          • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\PpMCUaskmPAB.exe.log
          • Size 1KB
          • SHA256 42f5774d1ee4cae5d7a4e83970da42bb17e61ae93c312247211b5ee3535662e0
          • MD5 SHA1 SHA512

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 9fef84d1ab94df1b15e01b6faa9d0a73d0ca3ae1e255c2bf38d96ba515804ce5
          • MD5 SHA1 SHA512 SSDEEP

          {0965a205-d6a6-4453-9f4b-71ac7f4093fe}_OnDiskSnapshotProp

          • Path \??\Volume{0576a638-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{0965a205-d6a6-4453-9f4b-71ac7f4093fe}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 1fdf4b19511c9ac354c7cf2acc1092470bb946fbfe48a0765809f4f02d910280
          • MD5 SHA1 SHA512 SSDEEP

          memory/2564-74-0x0000000000990000-0x0000000000A66000-memory.dmp

          memory/3764-52-0x000000002A1C0000-0x000000002A1EF000-memory.dmp

          memory/4388-22-0x000002D961EE0000-0x000002D961F02000-memory.dmp

          memory/4852-239-0x000000002A0C0000-0x000000002A10D000-memory.dmp

          memory/4852-240-0x000000002BCE0000-0x000000002BE9D000-memory.dmp

          memory/4852-242-0x000000002BCE0000-0x000000002BE9D000-memory.dmp

          memory/4852-243-0x000000002BCE0000-0x000000002BE9D000-memory.dmp

          memory/4852-244-0x000000002BCE0000-0x000000002BE9D000-memory.dmp

          memory/5024-219-0x0000000000400000-0x00000000006DD000-memory.dmp

          memory/5024-88-0x000000006E920000-0x000000006E930000-memory.dmp

          memory/5024-95-0x00000000037D0000-0x0000000003BC6000-memory.dmp

          memory/5024-54-0x0000000000400000-0x00000000006DD000-memory.dmp

          memory/5024-104-0x000000006E910000-0x000000006E920000-memory.dmp

          memory/5024-115-0x0000000003F10000-0x0000000003F35000-memory.dmp