Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-10-2024 12:21

General

  • Target

    setup.msi

  • Size

    1.9MB

  • MD5

    d76a468a9012e63f24b706c3517c877e

  • SHA1

    1aa6752889be7d67dd3f152980ea04c063e04ad0

  • SHA256

    bdd01ab5e2001be0ccda94e6f70c2ac850a8652b1eba734f285f24dd0f810255

  • SHA512

    940c067eaab6df5d2e238fe9ef9a2e7f5566254912011468e81a21a27e2958785a0787de2f114a4e6333bdd1ed96704fa6ef5397048e3085f32ee454ee4768bf

  • SSDEEP

    24576:Mt9cpVDhquBEEaNhnJztj98fF+SJaplcQA5LpzRtV:rpRhqREaNv0foSJYA5LpzLV

Malware Config

Signatures

  • 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
  • Loads dropped DLL 1 IoCs
  • 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.

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 27 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\setup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2132
  • 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:2188
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 2EF151A75629D05E815EF50F9F599663
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:604
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-9c00b5aa-2310-4dbd-951d-8e63654ba120\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2340
      • 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:1840
      • 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:1456
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-9c00b5aa-2310-4dbd-951d-8e63654ba120\files"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2284
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-9c00b5aa-2310-4dbd-951d-8e63654ba120\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2420
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2720
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003E4" "00000000000002F8"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-9c00b5aa-2310-4dbd-951d-8e63654ba120\files.cab

    Filesize

    1.6MB

    MD5

    cf6b311fd9c673b2d5bb6bc1c218db91

    SHA1

    be082798ac5755fecc898dea57e4a88784b51e9c

    SHA256

    9959d65f822a4c092e085f31490e5ea2a6909ed92595fc19ee280ba8c0646092

    SHA512

    e2298acf6046be3c9bd79667d3bd672b7134731b6ae5d2ed16b0278bef20720d67a99731f0b69d1f4dccc9d61b4aea726c7b6ab4d2429a0cedb1abd41535cd88

  • C:\Users\Admin\AppData\Local\Temp\MW-9c00b5aa-2310-4dbd-951d-8e63654ba120\msiwrapper.ini

    Filesize

    380B

    MD5

    1764804454ab2c3f5195eda96d36106f

    SHA1

    12489536180f5c934fab4ea88f7c9db2ca677c46

    SHA256

    0971f12972c05beea44445aebbfe05f58fa7db661e2da4b4a085d33af7bdba6a

    SHA512

    b002ed11aee1b69ec19605b7de5b869170385ad426ade895e1a7b906df92f75c94daa30e523ebee2952305194c38ae96e52423142d76b752eb6ddb2843274dcb

  • C:\Users\Admin\AppData\Local\Temp\MW-9c00b5aa-2310-4dbd-951d-8e63654ba120\msiwrapper.ini

    Filesize

    1KB

    MD5

    97000ab0cee0afe69b9479c188e178cb

    SHA1

    7dfd335a462f09e49076e3db8f5a7e51edc8a0bd

    SHA256

    d2c89e36a2a3c575816d8457ab624c1ad79eb6a34c15b8ebcf866f58538d19db

    SHA512

    fa5dc8ec2d5fbd34971458b50b6b46264ae10439ebf8b9f1892bbb84df0c346321e666f89be7d2803d56a2244f1b26df402544263c9a0727b7b093b7dcd68e3d

  • C:\Windows\Installer\MSI6613.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108