Analysis

  • max time kernel
    141s
  • max time network
    147s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    29-12-2022 17:40

General

  • Target

    MultiMC/zlib1.dll

  • Size

    73KB

  • MD5

    c7d4d685a0af2a09cbc21cb474358595

  • SHA1

    b784599c82bb90d5267fd70aaa42acc0c614b5d2

  • SHA256

    e96b397b499d9eaa3f52eaf496ca8941e80c0ad1544879ccadf02bf2c6a1ecfc

  • SHA512

    fed2c126a499fae6215e0ef7d76aeec45b60417ed11c7732379d1e92c87e27355fe8753efed86af4f58d52ea695494ef674538192fac1e8a2a114467061a108b

  • SSDEEP

    1536:+4nToIf2W/nkQRZHaamLQHoIOah7Vryh7IO4cZlIXw6Epb:bTBfHdRZH9mLQHuaBVGn4FXw6E1

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\MultiMC\zlib1.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\MultiMC\zlib1.dll,#1
      2⤵
        PID:2636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 616
          3⤵
          • Program crash
          PID:3412

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2636-120-0x0000000000000000-mapping.dmp

    • memory/2636-121-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-122-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-123-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-124-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-125-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-126-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-127-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-128-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-130-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-129-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-131-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-133-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-132-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-135-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-136-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-134-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-138-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-140-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-141-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-139-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-142-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-143-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-137-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-144-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-146-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-145-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-147-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-148-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-149-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-151-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-153-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-152-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-155-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-156-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-154-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-150-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-157-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-158-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-159-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-160-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-161-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-162-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB

    • memory/2636-163-0x0000000077530000-0x00000000776BE000-memory.dmp

      Filesize

      1.6MB