Analysis

  • max time kernel
    366s
  • max time network
    856s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-es
  • resource tags

    arch:x64arch:x86image:win10-20220901-eslocale:es-esos:windows10-1703-x64systemwindows
  • submitted
    09-01-2023 00:46

General

  • Target

    UltimMC/libstdc++-6.dll

  • Size

    1002KB

  • MD5

    c283d446b34e75019b81d0981cb11f0d

  • SHA1

    a6e146975dfc55b0659d09e25b9a69f7cff993dc

  • SHA256

    f6530962659d0641236a42517a30dc55c4fcb7d30e942c3e820af343798a770d

  • SHA512

    eb51969a79ee4501c955a81cec9f07e9a39007c1ea69c5021e03ebf3b640d949e19f6e0cd7af969e80ec60ea6b8477804fb76deec2704db503e72906103fea63

  • SSDEEP

    24576:KSNHTild8LMw2g8XiGkMAZ0dP5Bd+1DT50v4H:7dLM8GkMAQBdih

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libstdc++-6.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libstdc++-6.dll,#1
      2⤵
        PID:404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 648
          3⤵
          • Program crash
          PID:1400

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/404-120-0x0000000000000000-mapping.dmp

    • memory/404-121-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-122-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-123-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-124-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-125-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-126-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-127-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-128-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-129-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-130-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-131-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-132-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-133-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-134-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-135-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-136-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-137-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-139-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-140-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-141-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-142-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-143-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-144-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-145-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-146-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-147-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-148-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-149-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-150-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-151-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-138-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-152-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-153-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-154-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-155-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-156-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-157-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-158-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-159-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-160-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-161-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-162-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-163-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-164-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB

    • memory/404-165-0x00000000778B0000-0x0000000077A3E000-memory.dmp

      Filesize

      1.6MB