Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 21:53

General

  • Target

    4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe

  • Size

    134KB

  • MD5

    b3b9455487c8b7e0200fd886bd4da330

  • SHA1

    8b8d0118d9b155363e283bf492c7b873b4f79578

  • SHA256

    4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a

  • SHA512

    1c0a008123801ea3375c02f98417353a19ec831a652b58a5ea14c85245a8ace6b3019f6836899d66743410784b43f246055b98e382d0cef709beffca38222380

  • SSDEEP

    1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SO7:YfU/WF6QMauSuiWNi9eNOl0007NZIO7

Score
9/10

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 7 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 7 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe
    "C:\Users\Admin\AppData\Local\Temp\4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\ProgramData\Update\wuauclt.exe
      "C:\ProgramData\Update\wuauclt.exe" /run
      2⤵
      • Executes dropped EXE
      PID:1968
    • C:\windows\SysWOW64\cmd.exe
      "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\4d1e5f808b9e90b9b7ac9e32b4e11b2ef223745fa707aa4c34f60e3bd72ae42a.exe" >> NUL
      2⤵
      • Deletes itself
      PID:2944

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\Update\wuauclt.exe

          Filesize

          134KB

          MD5

          6dcec8f3d1d6cc8d3ebe3b6dad25d904

          SHA1

          e091f4cca193ba9bb7859c9ab2f51bee9e35918c

          SHA256

          6da5e096cb83825c8b893d8d5f71711e48e77c1d0c51be69294150c21b9e011d

          SHA512

          1f24f5b9db47b9943a6d85a835ec6e17dda58c852ef278dc74a3aa22e8129e0585cfa2ba43fd532fa7fcb82c3b76157cc3f94afd845c5939fbd07be551398c02

        • memory/1968-7-0x0000000000B90000-0x0000000000BB8000-memory.dmp

          Filesize

          160KB

        • memory/1968-10-0x0000000000B90000-0x0000000000BB8000-memory.dmp

          Filesize

          160KB

        • memory/2320-1-0x0000000000DA0000-0x0000000000DC8000-memory.dmp

          Filesize

          160KB

        • memory/2320-5-0x0000000000B90000-0x0000000000BB8000-memory.dmp

          Filesize

          160KB

        • memory/2320-8-0x0000000000DA0000-0x0000000000DC8000-memory.dmp

          Filesize

          160KB

        • memory/2320-9-0x0000000000B90000-0x0000000000BB8000-memory.dmp

          Filesize

          160KB

        • memory/2320-11-0x0000000000DA0000-0x0000000000DC8000-memory.dmp

          Filesize

          160KB

        • memory/2320-12-0x0000000000B90000-0x0000000000BB8000-memory.dmp

          Filesize

          160KB