Analysis

  • max time kernel
    146s
  • max time network
    156s
  • 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 13:58

General

  • Target

    b37ea8a8fa8fb217e0d8955e8b1c8fc3.exe

  • Size

    133KB

  • MD5

    b37ea8a8fa8fb217e0d8955e8b1c8fc3

  • SHA1

    ba203fb52b99fd90b71a98fbc725ebe2aaa70b85

  • SHA256

    b03237cf1b1bbe358cda05bfeb7f4eb7d143472aa3242cdded55811c05c61c8a

  • SHA512

    236db4853a8bcf85ec60121705e3f58c7f95f7ff2628a344d4b24036d532175ae4d03448801ea14d52d2e72fe2e7e869d6143f31b944c25c3aea92f1cb3ceb1d

  • SSDEEP

    3072:I1LJmLhAOuHLNz1ddHx9BcHjCYqQwfwA0a6O7YeoSEf5TC3nTSxD7rQ:I1IdY1ddR96NQfwA0SC5TC3nwQ

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\b37ea8a8fa8fb217e0d8955e8b1c8fc3.exe
    "C:\Users\Admin\AppData\Local\Temp\b37ea8a8fa8fb217e0d8955e8b1c8fc3.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Users\Admin\AppData\Local\Temp\b37ea8a8fa8fb217e0d8955e8b1c8fc3.exe
      C:\Users\Admin\AppData\Local\Temp\b37ea8a8fa8fb217e0d8955e8b1c8fc3.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:1504

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\b37ea8a8fa8fb217e0d8955e8b1c8fc3.exe

    Filesize

    133KB

    MD5

    17912b15ef5f21bc75c93d7a4e7821e1

    SHA1

    42abe4e05ef0ea212682d84196cd7930f18117d7

    SHA256

    076df2e54f5b2e43b15502749fba5ccbabe76663d18b1e501abdd25d7be9f152

    SHA512

    21b11c167dbca3a653d1c8b6413ad79440d4292f02ac50214538d6b489dbe6d03f38995e4254eb610ea839bfd950c5bf66b1774057e3de007257a35bd19f2687

  • memory/1504-15-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1504-17-0x00000000001C0000-0x00000000001E1000-memory.dmp

    Filesize

    132KB

  • memory/1504-31-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/2112-0-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/2112-1-0x00000000001C0000-0x00000000001E1000-memory.dmp

    Filesize

    132KB

  • memory/2112-2-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2112-14-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB