Analysis

  • max time kernel
    33s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21/11/2024, 08:38

General

  • Target

    JJSploit_8.10.14_x64_en-US.msi

  • Size

    5.0MB

  • MD5

    9a5e4420fd429b7444e7f02b2b52d0bc

  • SHA1

    056e5ac7ef1334698f4337435985a2d6a52ae059

  • SHA256

    44ef9c095fdc078cad8648bc9ec75f744d2c72229ee427eac65fbc1859e57172

  • SHA512

    7728f89d67bf145106d7c86dd7a1ad27aac74898210bd86d944d7a9111c41fb3df1ab2acab5a4d5bd9cf1a6dd66d9b460368c7994bfbe8807e4c21ae142f8f5e

  • SSDEEP

    98304:461sCoKXIA5gnPoEcXGwMKDHLG/mJhYheaVyvF9bmgDMjPjV+H7nHNjC3v8m:4XCXIkgP7cdPG/05bmgAjPh+7HV

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.

  • Drops file in Program Files directory 23 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 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\JJSploit_8.10.14_x64_en-US.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2512
  • 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:1500
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F329BBDC33D0229952320EC2435EE93C C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2216
    • 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:2712
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2676
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005D4" "00000000000005E0"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:1316
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x0
      1⤵
        PID:1636
      • C:\Windows\system32\LogonUI.exe
        "LogonUI.exe" /flags:0x1
        1⤵
          PID:1552

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          1KB

          MD5

          53c6d4c2d2fb9a3b70a80fffd92a4f49

          SHA1

          5289892a2efdf8e4b8260c78290c141140757860

          SHA256

          647a91a020310eb7bf0f30c18e8f61f098dde00c0682793b934a102c95939172

          SHA512

          f2f77025ea6e38439c6c1384aecdc2452bfd2646ac3c72500daab7981bb20c5ff22215c43ad0d63e86025059ac25cd5c015fb2af92726627476cca9dc5d289fd

        • C:\Users\Admin\AppData\Local\Temp\MSIF142.tmp

          Filesize

          132KB

          MD5

          cfbb8568bd3711a97e6124c56fcfa8d9

          SHA1

          d7a098ae58bdd5e93a3c1b04b3d69a14234d5e57

          SHA256

          7f47d98ab25cfea9b3a2e898c3376cc9ba1cd893b4948b0c27caa530fd0e34cc

          SHA512

          860cbf3286ac4915580cefaf56a9c3d48938eb08e3f31b7f024c4339c037d7c8bdf16e766d08106505ba535be4922a87dc46bd029aae99a64ea2fc02cf3aec04

        • C:\Windows\Installer\f771526.msi

          Filesize

          5.0MB

          MD5

          9a5e4420fd429b7444e7f02b2b52d0bc

          SHA1

          056e5ac7ef1334698f4337435985a2d6a52ae059

          SHA256

          44ef9c095fdc078cad8648bc9ec75f744d2c72229ee427eac65fbc1859e57172

          SHA512

          7728f89d67bf145106d7c86dd7a1ad27aac74898210bd86d944d7a9111c41fb3df1ab2acab5a4d5bd9cf1a6dd66d9b460368c7994bfbe8807e4c21ae142f8f5e

        • \Program Files\JJSploit\JJSploit.exe

          Filesize

          9.7MB

          MD5

          281a79abb33f10b3f9c6c40c0e165cc3

          SHA1

          ea7bd361ca528f02f0f95c376d844af98105e218

          SHA256

          30f840be1b9249d22c6bdc943d6901ee8723284770be1b7e18ea12a844d91f77

          SHA512

          2f6deba4a2cdba68820dc8a47f20253107a3420a18cf3f0995fa12b434afe41fa6213d392cab2826517b4cf8cf59fceb2083f855531daf9310128754dab7ea1b

        • memory/2712-59-0x000000001B690000-0x000000001B972000-memory.dmp

          Filesize

          2.9MB

        • memory/2712-60-0x0000000001F50000-0x0000000001F58000-memory.dmp

          Filesize

          32KB