Analysis

  • max time kernel
    112s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29/09/2022, 12:36

General

  • Target

    194e334039c0fbbdc574ccae592042b2699814912ac2053f5e0aacf5d0fd44be.msi

  • Size

    100.8MB

  • MD5

    7d97d8d7556272f7199e25bbff076cfb

  • SHA1

    2325a09a83f0855aaecc8da00b2c316dac03ad0f

  • SHA256

    194e334039c0fbbdc574ccae592042b2699814912ac2053f5e0aacf5d0fd44be

  • SHA512

    4639c796551a44bf49b3f13a06b86d99b7956c56423987eeb636e471afb95edbcff351ea3ae6c86f48cfd7e81eafdb9e4a939c394b33619cf95836b590d04589

  • SSDEEP

    3145728:RFEp1cAjJNOCsXvY27nm0LT419R/pt8OBpt:m7FfknLdTC9R/piqt

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 11 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\194e334039c0fbbdc574ccae592042b2699814912ac2053f5e0aacf5d0fd44be.msi
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1256
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:472
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5124469F7DC00E2933C00E4E42763449
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:436
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        -NoProfile -Noninteractive -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\pss40A.ps1" -propFile "C:\Users\Admin\AppData\Local\Temp\msi3B9.txt" -scriptFile "C:\Users\Admin\AppData\Local\Temp\scr3CA.ps1" -scriptArgsFile "C:\Users\Admin\AppData\Local\Temp\scr3CB.txt" -propSep " :<->: " -testPrefix "_testValue."
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1976
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:524
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003E0" "00000000000003E4"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:672

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\pss40A.ps1

          Filesize

          5KB

          MD5

          8f69da7a9f4b3c2d0f423583b262ed49

          SHA1

          b6d2ceb18fe78d279f76f412e4660bff5f6a88c7

          SHA256

          dc6b6e1812f41c80ee67a72ebcb7a999488c866d805354936fb7506667005b43

          SHA512

          71782d54137e87ec8d4311adf83b9b269aadfcba55b753ce8562d0fe74cc95f00118b01f3139b8ff0a142156d6461bececfc38380e9acd0c117b2fff0e846edf

        • C:\Users\Admin\AppData\Local\Temp\scr3CA.ps1

          Filesize

          916B

          MD5

          c8afd6b715f5ae640a1f303497d312e3

          SHA1

          129a1e62212b0ae8e50930304f11c68f0ec1fc5b

          SHA256

          06674b4b5c0463751d1ce08787cf8e939dc3aabe98464a15063b1cdf9ff289b1

          SHA512

          6b3e3f18cd199c054d57c40ebaf1f1496d4e8a31cc48d25651e405d846cefb550d4018103340e561b4a40f22b9d47a38bca274a15e747ab90cf02367a6e58ad8

        • C:\Windows\Installer\MSI948F.tmp

          Filesize

          268KB

          MD5

          b862a8faa3bdfd0dc181010c58460340

          SHA1

          855626e83f2f2364ce663ef280e2479d10963d0f

          SHA256

          4b588e4342713920a31acbd249e55e0287cfb562860164506ac047fc70617ef1

          SHA512

          b6350e82edd993f16d899f6664acee913a8355c621e418568d30c3dc7689b399bb7b565173929f2827e3acb2377ddf35a22d50d714556b31d19d9c48313d7f8f

        • C:\Windows\Installer\MSIFC3B.tmp

          Filesize

          670KB

          MD5

          846afe3ed676561d5f2cb293177f6c03

          SHA1

          bd31e948dca976ab54f8a01b87cbd6920659dc92

          SHA256

          d3f27a9fb0862de63db0e05de28a02c7913139c10440e0b9bff25c76a90806ed

          SHA512

          e5c10552930223fc818f5e973de482e0d9664defa3771be208be05dd944bef2ae279285a14ac0278ff4cc9d7384e4811e46434018dde314d6150855d9238457e

        • \Windows\Installer\MSI948F.tmp

          Filesize

          268KB

          MD5

          b862a8faa3bdfd0dc181010c58460340

          SHA1

          855626e83f2f2364ce663ef280e2479d10963d0f

          SHA256

          4b588e4342713920a31acbd249e55e0287cfb562860164506ac047fc70617ef1

          SHA512

          b6350e82edd993f16d899f6664acee913a8355c621e418568d30c3dc7689b399bb7b565173929f2827e3acb2377ddf35a22d50d714556b31d19d9c48313d7f8f

        • \Windows\Installer\MSIFC3B.tmp

          Filesize

          670KB

          MD5

          846afe3ed676561d5f2cb293177f6c03

          SHA1

          bd31e948dca976ab54f8a01b87cbd6920659dc92

          SHA256

          d3f27a9fb0862de63db0e05de28a02c7913139c10440e0b9bff25c76a90806ed

          SHA512

          e5c10552930223fc818f5e973de482e0d9664defa3771be208be05dd944bef2ae279285a14ac0278ff4cc9d7384e4811e46434018dde314d6150855d9238457e

        • memory/436-58-0x0000000075091000-0x0000000075093000-memory.dmp

          Filesize

          8KB

        • memory/1256-54-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmp

          Filesize

          8KB

        • memory/1976-67-0x00000000724A0000-0x00000000739C8000-memory.dmp

          Filesize

          21.2MB