Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/03/2024, 21:30

General

  • Target

    8cc2c07649288c67b8e46f78ac322a427589a4e3a86ff33fd4706a6f82ccf1f2.exe

  • Size

    71KB

  • MD5

    3958389fbf8a547e3414307c8e9b3e15

  • SHA1

    73b064cffaa0191467343b1df1dbc46ff3e053be

  • SHA256

    8cc2c07649288c67b8e46f78ac322a427589a4e3a86ff33fd4706a6f82ccf1f2

  • SHA512

    790af8531ccedf244d54fde8ff3cf560a8ea9ae14dcc2a7105ff53caef11b5ade2644c928aa93e6bb16f5c7f76bdd391971d422419e3790e1b629911cd1217e2

  • SSDEEP

    768:OrItKyw5WHXfQmjIiIk9ecAakMb96ZyXuDLdibfffsffff2ZZZZD:Or3Z5IfQmv81abyyXcZibfffsffffA

Score
9/10

Malware Config

Signatures

  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8cc2c07649288c67b8e46f78ac322a427589a4e3a86ff33fd4706a6f82ccf1f2.exe
    "C:\Users\Admin\AppData\Local\Temp\8cc2c07649288c67b8e46f78ac322a427589a4e3a86ff33fd4706a6f82ccf1f2.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\smahost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • Views/modifies file attributes
      PID:2064
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\8CC2C0~1.EXE > nul
      2⤵
        PID:3720
    • C:\Windows\Debug\smahost.exe
      C:\Windows\Debug\smahost.exe
      1⤵
      • Executes dropped EXE
      PID:3184

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\debug\smahost.exe

      Filesize

      71KB

      MD5

      e604123aa4c9b015ee376960c63786c7

      SHA1

      f09b03547d3a95b7aa81d0cb9979406e69263368

      SHA256

      2761db6617d507c20f52b21dead0ffdcaa83d9b87277c118566642a0153b45d7

      SHA512

      606876eb83c67f8126501cefab735cb420b591a83e65a905b171dbf363a746ddcfd330c16a272fb08eddc4daf70a87390172188a9db8da9c4d90ce1e96ad9c44