Analysis

  • max time kernel
    111s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 04:21

General

  • Target

    a2d97b2b6adb9eddb7dd59b334e5ff9917c8de7fe5d6c9eb153a9e44e773d761N.exe

  • Size

    37KB

  • MD5

    8a2c4dfca2c807e0038832937b506380

  • SHA1

    6d55e67061809c42b9d0a6f86687aa40fe048777

  • SHA256

    a2d97b2b6adb9eddb7dd59b334e5ff9917c8de7fe5d6c9eb153a9e44e773d761

  • SHA512

    62cb76464c71b1a97e196fda016885722cefd61a206e6455318f20155c9b78b27a605a307d03feaf30677a58f789217e299274d5bf0d3e02ddbed0d94e9c810f

  • SSDEEP

    768:AnoSEjp9Plchfr6TUqnbcuyD7UYK41lll/J0ppppCwwwcooodwwwt111q1YYYU/T:AoSEZWTUUqnouy8YX/vooodwwwt111+p

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
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • UPX packed file 6 IoCs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • 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\a2d97b2b6adb9eddb7dd59b334e5ff9917c8de7fe5d6c9eb153a9e44e773d761N.exe
    "C:\Users\Admin\AppData\Local\Temp\a2d97b2b6adb9eddb7dd59b334e5ff9917c8de7fe5d6c9eb153a9e44e773d761N.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A2D97B~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2384
  • C:\Windows\Debug\pwshost.exe
    C:\Windows\Debug\pwshost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    PID:4644

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\debug\pwshost.exe

          Filesize

          37KB

          MD5

          5179511c7b6d080f6474f5c802151e24

          SHA1

          0cf7ec85cc7a896468c845b92154edb08d8ff9eb

          SHA256

          1809414d5405ee2d24fdaa288acca74e1ce7d74298dad84fa4072d021aedc668

          SHA512

          85e10dee9c355392446f981b8c8fef474f0585a8d12f5519435ef8ef7dd9a7e3b8442d01ea565b57a4318639af4b46e1aaf0686ad26a3a0ae23dee3fd42f9cc3

        • memory/3028-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/3028-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/4644-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/4644-13-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/4644-16-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB