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Analysis

  • max time kernel
    174s
  • max time network
    182s
  • 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, 17:16

General

  • Target

    fcf14878aed86435cc03f2b3e7816eb3.exe

  • Size

    133KB

  • MD5

    fcf14878aed86435cc03f2b3e7816eb3

  • SHA1

    5da5586da95b45cd8e63884f51df0e254dfdc3b4

  • SHA256

    237252c749c4c572371664c626c3ffe1ac14f78c63259d979c5e8bf7e982b37a

  • SHA512

    03b815d33723dfa2f4e731d1f21a17f5afd09d3a52831c107560cc3e4d24e8ba33540f2ae5c9f3af21ad7a10bbe3085c21dc9d1827dc42a7662f3af395a9935b

  • SSDEEP

    1536:wj8kT7wTTudL5OEwP1ZOyqKbMw1TAiq+rEHumt6+pMRs2JqNjfbRPw2V9aD9ctGQ:xTTaL5Ol32uE6JG7ft/5Gx/U+Y2ryWPQ

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\fcf14878aed86435cc03f2b3e7816eb3.exe
    "C:\Users\Admin\AppData\Local\Temp\fcf14878aed86435cc03f2b3e7816eb3.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:4376
    • C:\Users\Admin\AppData\Local\Temp\fcf14878aed86435cc03f2b3e7816eb3.exe
      C:\Users\Admin\AppData\Local\Temp\fcf14878aed86435cc03f2b3e7816eb3.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:3760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\fcf14878aed86435cc03f2b3e7816eb3.exe

    Filesize

    133KB

    MD5

    f948bf37e8d45034cafe6cdb2cda2a1f

    SHA1

    6a4b7c51bb582e9a2355d543f49f4c8491fb18c1

    SHA256

    bc7e66e0b3c48b5ee6017ff6166e409936ec4aecc4c7abc8191a65a2c527b387

    SHA512

    d53b358a9c74e7980b999a1a806a0e8c95d615f5e287404f7ffce5cb573cd28e0f7dcc5b09edb6d6b1c854e3b66833b2b969cbb7c3b1f92efa2f6155dda8a37c

  • memory/3760-13-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/3760-15-0x00000000001A0000-0x00000000001C1000-memory.dmp

    Filesize

    132KB

  • memory/3760-30-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/4376-0-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/4376-1-0x00000000000F0000-0x0000000000111000-memory.dmp

    Filesize

    132KB

  • memory/4376-2-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4376-14-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB