Analysis

  • max time kernel
    112s
  • max time network
    100s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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

  • Deletes itself 1 IoCs
  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2d97b2b6adb9eddb7dd59b334e5ff9917c8de7fe5d6c9eb153a9e44e773d761N.exe
    "C:\Users\Admin\AppData\Local\Temp\a2d97b2b6adb9eddb7dd59b334e5ff9917c8de7fe5d6c9eb153a9e44e773d761N.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A2D97B~1.EXE > nul
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2044
  • C:\Windows\Debug\kkehost.exe
    C:\Windows\Debug\kkehost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    PID:952

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\debug\kkehost.exe

          Filesize

          37KB

          MD5

          40221fae29e6eb2e38ee3e3482033369

          SHA1

          80cc6c56e65d76ca6a9fd3cb80cb975ded37cd1f

          SHA256

          cd53f562751e618494293b00ce68a2beae15131e8764fefbd8bfcc7678eaee0c

          SHA512

          87623926d5a3c26bd454f710669dc3c09908e7893daab7ca94badbdc4b1b98d993340a95249fb68afe3c8ba5ab6140227e57116770c3b84e8ec582e05e9b1190

        • memory/952-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/952-12-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/952-15-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2344-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2344-5-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB