Analysis

  • max time kernel
    63s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04/10/2024, 08:17

General

  • Target

    vc_redist.x86.exe

  • Size

    13.1MB

  • MD5

    1a15e6606bac9647e7ad3caa543377cf

  • SHA1

    bfb74e498c44d3a103ca3aa2831763fb417134d1

  • SHA256

    fdd1e1f0dcae2d0aa0720895eff33b927d13076e64464bb7c7e5843b7667cd14

  • SHA512

    e8cb67fc8e0312da3cc98364b96dfa1a63150ab9de60069c4af60c1cf77d440b7dffe630b4784ba07ea9bf146bdbf6ad5282a900ffd6ab7d86433456a752b2fd

  • SSDEEP

    393216:S1RPq5dCsKSR65cX7Eyd/qnejOFxP7OEnl4L/Vvc:yP5iw56oyleej2OEnlwc

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vc_redist.x86.exe
    "C:\Users\Admin\AppData\Local\Temp\vc_redist.x86.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3684
    • C:\Users\Admin\AppData\Local\Temp\vc_redist.x86.exe
      "C:\Users\Admin\AppData\Local\Temp\vc_redist.x86.exe" -burn.unelevated BurnPipe.{93254FA6-1355-4762-A340-424316C3FC67} {49137A53-8B93-4EBB-B234-31743AF51AB1} 3684
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2484
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 824
        3⤵
        • Program crash
        PID:1188
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2484 -ip 2484
    1⤵
      PID:2328

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\logo.png

      Filesize

      1KB

      MD5

      d6bd210f227442b3362493d046cea233

      SHA1

      ff286ac8370fc655aea0ef35e9cf0bfcb6d698de

      SHA256

      335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef

      SHA512

      464aaab9e08de610ad34b97d4076e92dc04c2cdc6669f60bfc50f0f9ce5d71c31b8943bd84cee1a04fb9ab5bbed3442bd41d9cb21a0dd170ea97c463e1ce2b5b

    • C:\Users\Admin\AppData\Local\Temp\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\wixstdba.dll

      Filesize

      118KB

      MD5

      4d20a950a3571d11236482754b4a8e76

      SHA1

      e68bd784ac143e206d52ecaf54a7e3b8d4d75c9c

      SHA256

      a9295ad4e909f979e2b6cb2b2495c3d35c8517e689cd64a918c690e17b49078b

      SHA512

      8b9243d1f9edbcbd6bdaf6874dc69c806bb29e909bd733781fde8ac80ca3fff574d786ca903871d1e856e73fd58403bebb58c9f23083ea7cd749ba3e890af3d2