Analysis

  • max time kernel
    122s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23-09-2024 17:41

General

  • Target

    de8fb6c7ed0b575a5e05b191643751c1d0c89c542a34c00cfcdaf99a6de98f43.js

  • Size

    63KB

  • MD5

    a0ca7b2e74a0a3cf5a8962c1325024ae

  • SHA1

    81a45727e33fe1a557069cd77c092b0d29f8aaff

  • SHA256

    de8fb6c7ed0b575a5e05b191643751c1d0c89c542a34c00cfcdaf99a6de98f43

  • SHA512

    4272161dc9ea7995eee14fe4ed76534e3ab959e8a60add820924414ce30e0ba655c9d3a5ffe32eab4d4c1012bf22e7a2549d2b59eb9025d81c5277076a23fa77

  • SSDEEP

    1536:DgzzUIs6n3rc/G/zCSYCXyN6IknpNcpRP6bM:DgzzUIg+LCSYCX2inpNcj64

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Modifies file permissions 1 TTPs 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 11 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Modifies data under HKEY_USERS 43 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\de8fb6c7ed0b575a5e05b191643751c1d0c89c542a34c00cfcdaf99a6de98f43.js
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Windows\System32\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\setup.msi"
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3040
  • 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:2652
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3305A76C322753B1C29156B5DDD9FCCF
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-cbf5df55-34ce-408f-b89f-5323c6676fc0\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1856
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:2088
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c start msedge https://www.docusign.com/sites/default/files/Signature_Appliance_Client_Guide_8.0.pdf
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2772
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-cbf5df55-34ce-408f-b89f-5323c6676fc0\files"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1724
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-cbf5df55-34ce-408f-b89f-5323c6676fc0\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2268
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2672
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005B0" "00000000000003E0"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:1096

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-cbf5df55-34ce-408f-b89f-5323c6676fc0\files.cab

    Filesize

    1.7MB

    MD5

    645763c0faf86b715dee6d1e6d50fd82

    SHA1

    a6b466d5a71e3326d295ee7a2a2fc8c5bb79fd23

    SHA256

    12e6b630509b37f2948ffb0f5719dd00dd5934e19aa8d9301247025c1c6d7a43

    SHA512

    b98b9d1f43b8c011b54095756fb865b4781d1890b8842370ff26dcc992d8ac340ed97057011a165be9eea0620e68ca1d0960394ab51316f81721de5370ceb9d3

  • C:\Users\Admin\AppData\Local\Temp\MW-cbf5df55-34ce-408f-b89f-5323c6676fc0\msiwrapper.ini

    Filesize

    1KB

    MD5

    a534fb2a5ad4d169e481c0a01504439c

    SHA1

    ff549ee90bc59eeabb8fc0244007e78ee43e396e

    SHA256

    d9baeeab36bbf6ec836c767939e0825aba5d5c3346d1720c3d0ca69972f2942a

    SHA512

    610884a6c806be1ddca497620b1f9c02faeb395361b6d065424dfd090e98d86e4e7cd61d605bb054a65ae976fa7d93740565c25173d68ad794a848566089f8c9

  • C:\Users\Admin\AppData\Local\Temp\MW-cbf5df55-34ce-408f-b89f-5323c6676fc0\msiwrapper.ini

    Filesize

    1KB

    MD5

    acab3839eba87b6455b759f0022bbc2f

    SHA1

    c771c982978ceb025b73e7bcdf512be88f312090

    SHA256

    5ff36317662e9b2bf519bc24ab537711fa52d009e330ac631c58aed422af64e5

    SHA512

    c4d9e010b33938b53db2ca61337baa8e3b4fbc6d3509e7c7845203b303a1eb8de11421fdd38b1fed9307d47f86e3eb0b440c92a02c4783d2750fb0d99a49640c

  • C:\Users\Admin\AppData\Local\setup.msi

    Filesize

    2.0MB

    MD5

    9bc2607944098921c27665592491abb8

    SHA1

    0721d8d7d6e667e291d71be03106c8087fa38d8f

    SHA256

    39619645275a452099434559fc0663b26d10516c25e7a8c57e1311cdc26c8c80

    SHA512

    36b7e281f96e71f401d2ab2ce80f808947889c18bd5585a3bf00db98c384d6c9da882db96d36b75eb2238b1edf8ea04323858758d7d721618d5f01252f465038

  • C:\Windows\Installer\MSIB4BF.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108