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Analysis

  • max time kernel
    154s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 01:38

General

  • Target

    8fdfd376210243452f0f824b51472ddfaf1b2a621a9dc1014a6fe2cb16d740fa.exe

  • Size

    198KB

  • MD5

    84d7a0535f63934a74bb793ebe1360c3

  • SHA1

    a4a55f4a4355120e562da1043a688ed851d4bf8c

  • SHA256

    8fdfd376210243452f0f824b51472ddfaf1b2a621a9dc1014a6fe2cb16d740fa

  • SHA512

    5f1e8be51c4761733add5b22923311c14e8e75e3b64abe7b4bd84b3ec38f62b9ee51e829e55d340ab90d81f7cb4ac36e07cda90408e84fbf0863fc635be4dfc5

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOU:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXh

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).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8fdfd376210243452f0f824b51472ddfaf1b2a621a9dc1014a6fe2cb16d740fa.exe
    "C:\Users\Admin\AppData\Local\Temp\8fdfd376210243452f0f824b51472ddfaf1b2a621a9dc1014a6fe2cb16d740fa.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\8FDFD3~1.EXE > nul
      2⤵
        PID:2320
    • C:\Windows\Debug\bqchost.exe
      C:\Windows\Debug\bqchost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:2664

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Debug\bqchost.exe

      Filesize

      198KB

      MD5

      53c75c3700f70871ab29365f22278765

      SHA1

      da0296b6829f2065901803714b09f1b015e2c7f3

      SHA256

      932f9d31381181683033f0c90520413ae9033deb2ae0e740f29fce178d561097

      SHA512

      a17e3319436e758c8c511fe5d6ceb1cb64d9bb7c5aa6f2af9d9e3bc97906b22f2bfb15ce29bf3f7d70f3bebaa8f25d9d6b0cdfcbc3892205cf036d9c0a6ebfd2

    • C:\Windows\debug\bqchost.exe

      Filesize

      198KB

      MD5

      53c75c3700f70871ab29365f22278765

      SHA1

      da0296b6829f2065901803714b09f1b015e2c7f3

      SHA256

      932f9d31381181683033f0c90520413ae9033deb2ae0e740f29fce178d561097

      SHA512

      a17e3319436e758c8c511fe5d6ceb1cb64d9bb7c5aa6f2af9d9e3bc97906b22f2bfb15ce29bf3f7d70f3bebaa8f25d9d6b0cdfcbc3892205cf036d9c0a6ebfd2