Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-07-2024 11:59

General

  • Target

    Untitled_June_06_25_2024_export.pdf.exe

  • Size

    801KB

  • MD5

    41dcc29d7eaba7b84fd54323394712af

  • SHA1

    ddc0100723cc2dc9ae8b02a0cb7fe4a86c02d54b

  • SHA256

    a909bef708a47ae428fedbc566132c56f15ae7511dc460cf22055ec1a72d485a

  • SHA512

    5a3e8c1eda558e0b90470d752490bc4d04610f93e453cbfd9013a363cfdf5e607974d526c49efe2ef0440e241d775b66bd7c48c74ee9e8677a37cdedc30c42ee

  • SSDEEP

    6144:xmbuKA33X1rgMuu+xdaXkW+zF6m8XZPELSrPzA:x6XA33X1rTuuyrVZ6m8XGH

Score
7/10

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Windows directory 9 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Untitled_June_06_25_2024_export.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Untitled_June_06_25_2024_export.pdf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4408
    • C:\Windows\SYSTEM32\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi" /Qn
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4732
  • 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:2968
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 21D8EF1E48C0B0698968028E5CE5425D
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2476
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-8cefa28c-f45a-4bde-bb70-06342f7391e3\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:1348
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:2408
      • C:\Users\Admin\AppData\Local\Temp\MW-8cefa28c-f45a-4bde-bb70-06342f7391e3\files\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-8cefa28c-f45a-4bde-bb70-06342f7391e3\files\setup.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        PID:1380

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\windrv.msi

    Filesize

    1.6MB

    MD5

    24cbbd2c70efbb75845548513114317e

    SHA1

    bd13f38e7301648b8cea6135a851b8691fda2c27

    SHA256

    b31e366ae13a960eb0efbfb5074b0abd1f300151289833d7dfa1a9382bea1855

    SHA512

    b7b0e4fa57e17b0da21a85f56f29a711ff226c8a9e95ca59721e4f20e32b9cbd8a5fdf69010e79f8452df5457a055cc2a41f2ad773eaf692680bc39cb8e50ead

  • C:\Users\Admin\AppData\Local\Temp\MW-8cefa28c-f45a-4bde-bb70-06342f7391e3\files.cab

    Filesize

    1.3MB

    MD5

    57c5b54337af1acd54c65c5abae694b2

    SHA1

    87b6b5eebf8fa70a42bd2cf192740b7130a521a2

    SHA256

    ead264b457fd74737f51a2c4bf5d4679d7e1dcdd1547aca6fe3bf7e117c9d0d8

    SHA512

    af10bdc86a45d59d6e46b5cfa942348360c3ac4312d122bf80783673c448861621811a2c3f4446355037b98a67f642cb8ae27945619d0cd32aaeff9656c0982e

  • C:\Users\Admin\AppData\Local\Temp\MW-8cefa28c-f45a-4bde-bb70-06342f7391e3\msiwrapper.ini

    Filesize

    1KB

    MD5

    13b94853c520e0dbcf2f0d7ea7676a17

    SHA1

    0d5d63caa140a0fa51bc0fbbe9c5e329c2b00929

    SHA256

    7cc61ce032d4acdf91613a9729910f1f677e6c166f70f762bd94b1ce432aa0f0

    SHA512

    f91729d3e3fe1501f3070d746994f61199236daac758e55ebd43ee42457889848b0fe64640325601d12223cee43b1c364536d1b006fe710d5c6d68d942cd4e2c

  • C:\Windows\Installer\MSI4C4B.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108