Analysis

  • max time kernel
    136s
  • max time network
    162s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22/02/2024, 17:46

General

  • Target

    Rail.Route.v1.19.3/Rail.Route.v1.19.3/Redist/vcredist_x862.exe

  • Size

    6.2MB

  • MD5

    f5a9debf301d714c39757965cad9ba9b

  • SHA1

    5765fb4e23900e528746d47ef32e205c3013e9da

  • SHA256

    4ee185ca12347324f684ae383692a880f749ae1385ba53c1b12dbd9ac3150f0d

  • SHA512

    63c01e8e47282e2dd3cbf7081033593b3976b378e59224817dcc20a906a518622adeaa0b405dca754f172706ce5c75a39afba692618a064216e458835ecc2689

  • SSDEEP

    98304:7hEKzHx15bWUuBrNatjJh2eNUrzKRL/RaIswn7aBOC5qZxVqFb2iExMc7FvxwGv6:7RDnuBotjJh2emr8L/YIsG7MOgqHG64/

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Rail.Route.v1.19.3\Rail.Route.v1.19.3\Redist\vcredist_x862.exe
    "C:\Users\Admin\AppData\Local\Temp\Rail.Route.v1.19.3\Rail.Route.v1.19.3\Redist\vcredist_x862.exe"
    1⤵
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Users\Admin\AppData\Local\Temp\Rail.Route.v1.19.3\Rail.Route.v1.19.3\Redist\vcredist_x862.exe
      "C:\Users\Admin\AppData\Local\Temp\Rail.Route.v1.19.3\Rail.Route.v1.19.3\Redist\vcredist_x862.exe" -burn.unelevated BurnPipe.{36FD2812-89C9-4239-AB00-DE97687F4A0C} {B72D502B-5E54-46AF-8E58-22AA84F9B9A6} 1576
      2⤵
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      PID:5112
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:852
  • C:\Windows\system32\srtasks.exe
    C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4292

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\{b55f7208-e02b-4828-ac78-59c73ddf5bc7}\.ba1\logo.png

          Filesize

          1KB

          MD5

          d6bd210f227442b3362493d046cea233

          SHA1

          ff286ac8370fc655aea0ef35e9cf0bfcb6d698de

          SHA256

          335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef

          SHA512

          464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b

        • C:\Users\Admin\AppData\Local\Temp\{b55f7208-e02b-4828-ac78-59c73ddf5bc7}\.ba1\wixstdba.dll

          Filesize

          117KB

          MD5

          a52e5220efb60813b31a82d101a97dcb

          SHA1

          56e16e4df0944cb07e73a01301886644f062d79b

          SHA256

          e7c8e7edd9112137895820e789baaaeca41626b01fb99fede82968ddb66d02cf

          SHA512

          d6565ba18b5b9795d6bde3ef94d8f7cd77bf8bb69ba3fe7adefb80fc7c5d888cdfdc79238d86a0839846aea4a1e51fc0caed3d62f7054885e8b15fad9f6c654e

        • C:\Users\Admin\AppData\Local\Temp\{b55f7208-e02b-4828-ac78-59c73ddf5bc7}\.be\vcredist_x86.exe

          Filesize

          452KB

          MD5

          4cefc907ade923da72c3572b581a6ff1

          SHA1

          c6be867bcb0796270d8e90699c79810745a292ce

          SHA256

          e89691c5e5fb5c6501945136d91fd756a903754ab3d90935afab76e37c620817

          SHA512

          6e8e979ae8d0abf76a3e6c642490d032c6553e73466f34e71c6c21c579609ac355e54fc0c5ad548346c78f2a809f5dd0854c0a342c88c602334109af6e2409a8