Analysis

  • max time kernel
    137s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 06:21

General

  • Target
    75458eb95a09aa08de0b0a68444ec42a.exe
  • Size 133KB
  • Sample231222-g4d9nacfe2
  • SHA256 51afc4fd1f7b63f1b47c7d650e6a9f12c70f7c1131541f741cffdb67e02b99e7
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\75458eb95a09aa08de0b0a68444ec42a.exe
    "C:\Users\Admin\AppData\Local\Temp\75458eb95a09aa08de0b0a68444ec42a.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3640
    • C:\Users\Admin\AppData\Local\Temp\75458eb95a09aa08de0b0a68444ec42a.exe
      C:\Users\Admin\AppData\Local\Temp\75458eb95a09aa08de0b0a68444ec42a.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:1176

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        75458eb95a09aa08de0b0a68444ec42a.exe

        • Path C:\Users\Admin\AppData\Local\Temp\75458eb95a09aa08de0b0a68444ec42a.exe
        • Size 84KB
        • SHA256 cc3aafb8d1ee0d44b0471015fe3fab24f6866bf67bdd9e84a9ef04b57245f57b
        • MD5 SHA1 SHA512 SSDEEP

        memory/1176-14-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/1176-17-0x00000000001B0000-0x00000000001D1000-memory.dmp

        memory/1176-32-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/3640-0-0x0000000000400000-0x0000000000486000-memory.dmp

        memory/3640-1-0x0000000001490000-0x00000000014B1000-memory.dmp

        memory/3640-2-0x0000000000400000-0x000000000041F000-memory.dmp

        memory/3640-13-0x0000000000400000-0x000000000041F000-memory.dmp