Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 19:07

General

  • Target

    1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe

  • Size

    82KB

  • MD5

    3c640fc1b364a3f18ebe78eb5c74dfe4

  • SHA1

    4452d32eae4e1267eb3c8c12d5a8a5be143d403a

  • SHA256

    1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d

  • SHA512

    fac2fe1fd26152cb00db2c04ee2da41b386a5e4e650adcb96177988fada7960b5b1c654b82d590dd3dd83c6427ab7db8716c923563ee423d94454774aa70146a

  • SSDEEP

    1536:yr3Z5IfQmv81a7pP1xF3yX2tM/jTEwwwEiiiiR:WJOfQm01q9X3yX2q/jTA

Score
9/10

Malware Config

Signatures

  • Detects Windows executables referencing non-Windows User-Agents 4 IoCs
  • UPX dump on OEP (original entry point) 4 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
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 3 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 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe
    "C:\Users\Admin\AppData\Local\Temp\1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\vgkhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • Views/modifies file attributes
      PID:2952
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\1AAE2E~1.EXE > nul
      2⤵
        PID:3992
    • C:\Windows\Debug\vgkhost.exe
      C:\Windows\Debug\vgkhost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:2128

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\Debug\vgkhost.exe

            Filesize

            82KB

            MD5

            865def54b77b942d6d56034a74db5618

            SHA1

            89711c606ff583f4331f603e6aaf1b6c07646a6a

            SHA256

            94cc6bdef94c1960efcae7c43b1d05124213b2d5a1f12fdf50debabf57d70208

            SHA512

            ad01922666996518ee397fa7c9cdc350be23e5fbd6b29239586e5a73da7a4bc1a72ac2d3c94ab92ef162b5f4ed9cf85717dd0e962f792cd9adf4f060a3330aa8

          • memory/1048-0-0x0000000000400000-0x0000000000416000-memory.dmp

            Filesize

            88KB

          • memory/2128-5-0x0000000000400000-0x0000000000416000-memory.dmp

            Filesize

            88KB

          • memory/2128-6-0x0000000000400000-0x0000000000416000-memory.dmp

            Filesize

            88KB