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Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2023, 13:34

General

  • Target

    a66c3c2d4b3c88c1db3e9b8dc3af0c4a.exe

  • Size

    133KB

  • MD5

    a66c3c2d4b3c88c1db3e9b8dc3af0c4a

  • SHA1

    8e4452b608968697c97660fe9d13ae4f34a5dd9a

  • SHA256

    51f76c09dd822dcbfd30805e456553c807ebef6ad7afff6b6f7a1fa648ed7004

  • SHA512

    a670d7f8d40fc57f930e363e8aaa4049ff4fcdf10fffc2542b600967553000d1e20c415a402ead2a5edea8d74f238254127cac220255244e3df80f86b3f4b543

  • SSDEEP

    3072:iOpA7lcTCZd90sNRuMstG92OjgVrve5n2H6kef6CM00OZQ:l+Cod9/NRstxrveMH6kef6+ZQ

Score
7/10
upx

Malware Config

Signatures

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

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a66c3c2d4b3c88c1db3e9b8dc3af0c4a.exe
    "C:\Users\Admin\AppData\Local\Temp\a66c3c2d4b3c88c1db3e9b8dc3af0c4a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\a66c3c2d4b3c88c1db3e9b8dc3af0c4a.exe
      C:\Users\Admin\AppData\Local\Temp\a66c3c2d4b3c88c1db3e9b8dc3af0c4a.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\a66c3c2d4b3c88c1db3e9b8dc3af0c4a.exe

    Filesize

    133KB

    MD5

    2ef7ba125c6edcc3db550d6c7296e3bc

    SHA1

    4e2fff366acb479402cf2e04462b8e32f3929aac

    SHA256

    31c7b67e6f67b7684c08cb9657a382f29b9aad003e2f6c99207ecbdac85714af

    SHA512

    3b894f4b3288fef1f0c3684bd814e82f8c3b7f09a0ebf579683e2856c5e69ba568fcfc8fed8566c9f97a7d49ee34012b97ee8a1536912f6ca0022a5a28e17cb2

  • memory/2040-0-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/2040-2-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2040-1-0x00000000002D0000-0x00000000002F1000-memory.dmp

    Filesize

    132KB

  • memory/2040-15-0x0000000002CB0000-0x0000000002D36000-memory.dmp

    Filesize

    536KB

  • memory/2040-14-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2436-18-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/2436-20-0x0000000000150000-0x0000000000171000-memory.dmp

    Filesize

    132KB

  • memory/2436-43-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB