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Analysis

  • max time kernel
    128s
  • max time network
    96s
  • platform
    windows7_x64
  • resource
    win7-20230621-en
  • resource tags

    arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
  • submitted
    04/07/2023, 18:25

General

  • Target

    OpenVPN254I603amd64msi.msi

  • Size

    4.2MB

  • MD5

    a3ca10a71263645df2bb906cbedb3929

  • SHA1

    38e0a4d778e942e0a65fa46da3ccc0e1691bc9ea

  • SHA256

    6f8e093a7fdcaaba48a06b03bb263ef760ef7ca7ffc3312e27480373f91822b4

  • SHA512

    5df382c97555410c435c5931865d55609a11a11bc9728ef0062b9dc0db2871f6115445799612ae07f9bd7bf37a88d5e5bc68c66890a85b82bcbd34e89ea8f194

  • SSDEEP

    98304:SRZhtak954vdGNvOV9fE6Haf731Lqv38yNyOtu:AhX9qvdGNKH8wv3XQO

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\OpenVPN254I603amd64msi.msi
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1612
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:532
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding B7D0B276D7F8E9BB22AE032B24F4DB7D C
      2⤵
      • Loads dropped DLL
      PID:1840

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab4F8A.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\MSI5529.tmp

    Filesize

    189KB

    MD5

    738ebc5c63fda7087784b7ef8f749332

    SHA1

    ec49f57766f7b447d0d1935e27604de9a550a3f6

    SHA256

    4d2b74f18d570e98f41acc4063dfbb7686e5e08052869dce32429eae7c635075

    SHA512

    7aa2f3ff49a3756fc199fcdbda60d998d60bea26e36350bcda1e30cd7e10e30bcc5acb40eb983c5c1fa5a7076804cc48664dccacb85dff84e22374a761da7df5

  • C:\Users\Admin\AppData\Local\Temp\Tar5103.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • \Users\Admin\AppData\Local\Temp\MSI5529.tmp

    Filesize

    189KB

    MD5

    738ebc5c63fda7087784b7ef8f749332

    SHA1

    ec49f57766f7b447d0d1935e27604de9a550a3f6

    SHA256

    4d2b74f18d570e98f41acc4063dfbb7686e5e08052869dce32429eae7c635075

    SHA512

    7aa2f3ff49a3756fc199fcdbda60d998d60bea26e36350bcda1e30cd7e10e30bcc5acb40eb983c5c1fa5a7076804cc48664dccacb85dff84e22374a761da7df5