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Analysis

  • max time kernel
    147s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/03/2024, 09:13

General

  • Target

    b455e96c363ef74667a35263e1fdfa90.exe

  • Size

    82KB

  • MD5

    b455e96c363ef74667a35263e1fdfa90

  • SHA1

    bc36f6f034bbc50c9c119ff2de938c1a98d4bebc

  • SHA256

    1815df2402a9fd0388c8e6f633d50f05ae0614337311c3d7d6a4bf052e903adc

  • SHA512

    7b38a07d79be0e1fe3790de419c9aa0de7dc93d394281351b898f99f65cb46556f01bb196de22344111b0b9ee5a873bd422a6a0a8da3d96bda89b625f991f93f

  • SSDEEP

    768:cvQ5qDLHRdw2iPSMEk/6KMvu571xuEMs96cyX1869bYpYyTSY/YjvK0fdeeeD11y:cvQoLHjw2iWPKMvw71sMLyXuHr0Veee2

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b455e96c363ef74667a35263e1fdfa90.exe
    "C:\Users\Admin\AppData\Local\Temp\b455e96c363ef74667a35263e1fdfa90.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2408
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\B455E9~1.EXE > nul
      2⤵
        PID:3448
    • C:\Windows\Debug\vewhost.exe
      C:\Windows\Debug\vewhost.exe
      1⤵
      • Executes dropped EXE
      PID:2120
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
      1⤵
        PID:3924
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k UnistackSvcGroup
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:5076

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\debug\vewhost.exe

        Filesize

        82KB

        MD5

        f2b60fb36ae6fc8bfecc6fd9248e203f

        SHA1

        fbe5d0691007643ced8a4b2e5263731cee96cde1

        SHA256

        b3f14a8e33d44c37ae880760362896b3bad3b5ca7a17aa59eaf8070e54d4bbbd

        SHA512

        ee10aed18fcb89144b8e1734a2234e2359154d0d30278f3dd28da33d0480f646747998560465052e56bcbf5e0eac019e06661f7fa82fbaeef0a623e2a5abe644

      • memory/5076-4-0x000001D18C040000-0x000001D18C050000-memory.dmp

        Filesize

        64KB

      • memory/5076-20-0x000001D18C140000-0x000001D18C150000-memory.dmp

        Filesize

        64KB

      • memory/5076-36-0x000001D1946F0000-0x000001D1946F1000-memory.dmp

        Filesize

        4KB

      • memory/5076-37-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-38-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-39-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-40-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-41-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-42-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-43-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-44-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-45-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-46-0x000001D194710000-0x000001D194711000-memory.dmp

        Filesize

        4KB

      • memory/5076-47-0x000001D194340000-0x000001D194341000-memory.dmp

        Filesize

        4KB

      • memory/5076-48-0x000001D194330000-0x000001D194331000-memory.dmp

        Filesize

        4KB

      • memory/5076-50-0x000001D194340000-0x000001D194341000-memory.dmp

        Filesize

        4KB

      • memory/5076-53-0x000001D194330000-0x000001D194331000-memory.dmp

        Filesize

        4KB

      • memory/5076-56-0x000001D194270000-0x000001D194271000-memory.dmp

        Filesize

        4KB

      • memory/5076-68-0x000001D194470000-0x000001D194471000-memory.dmp

        Filesize

        4KB

      • memory/5076-70-0x000001D194480000-0x000001D194481000-memory.dmp

        Filesize

        4KB

      • memory/5076-71-0x000001D194480000-0x000001D194481000-memory.dmp

        Filesize

        4KB

      • memory/5076-72-0x000001D194590000-0x000001D194591000-memory.dmp

        Filesize

        4KB