Analysis

  • max time kernel
    137s
  • max time network
    122s
  • 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, 14:38

General

  • Target

    c81f5f49f4f5c6fee63f32ce61e98af0.exe

  • Size

    266KB

  • MD5

    c81f5f49f4f5c6fee63f32ce61e98af0

  • SHA1

    e62f2709b3dcd69699aa263958ffe1fab5832570

  • SHA256

    782b1177814a54b907d0f986e2a9ee7dac14dd68d1f77c883977a64ecb1201f2

  • SHA512

    6885e78171902887ee0824ac2115550ab1550078ee93e6615e1ed3217240ab21e498faf635cac7ba4187f7499474c47ab017a353432f83ca6e4ce4e7a963164b

  • SSDEEP

    6144:3LLZu6v2k25QC9BZcL5pz4EIh1hlbhkbau8o/di/nkScOrN0Q:71u6vBY81pOltkbau8pkDOh1

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\c81f5f49f4f5c6fee63f32ce61e98af0.exe
    "C:\Users\Admin\AppData\Local\Temp\c81f5f49f4f5c6fee63f32ce61e98af0.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\c81f5f49f4f5c6fee63f32ce61e98af0.exe
      C:\Users\Admin\AppData\Local\Temp\c81f5f49f4f5c6fee63f32ce61e98af0.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2584

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\c81f5f49f4f5c6fee63f32ce61e98af0.exe

          Filesize

          266KB

          MD5

          4905934b9b164d838a433b7bb592559c

          SHA1

          72b7fdd74fd593e792a5a5b9ce8fe8c370773ea9

          SHA256

          8f8dc8fedd10b31bb33ff1cb3bcfeffe9c34682a3e9afce102d0788d3778fbef

          SHA512

          cc02358294e0692ec90fb6540e415acb341aa87205f0c3e7e0496b24aa1bd55c763e6f98dba471da1f19792ba2eb651f7b6a44737a1892e843b1d1947e6db4d6

        • memory/640-0-0x0000000000400000-0x0000000000486000-memory.dmp

          Filesize

          536KB

        • memory/640-1-0x00000000000F0000-0x0000000000111000-memory.dmp

          Filesize

          132KB

        • memory/640-2-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/640-13-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/2584-16-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/2584-15-0x00000000000D0000-0x00000000000F1000-memory.dmp

          Filesize

          132KB

        • memory/2584-14-0x0000000000400000-0x0000000000486000-memory.dmp

          Filesize

          536KB

        • memory/2584-33-0x0000000000400000-0x0000000000486000-memory.dmp

          Filesize

          536KB