Analysis

  • max time kernel
    94s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-08-2024 14:31

General

  • Target

    UltimMC/libLauncher_rainbow.dll

  • Size

    67KB

  • MD5

    8bacee60fbf39997eb56bb4c2994f65b

  • SHA1

    f604b07e35891b8d46f5d27c3b3232ab4711392e

  • SHA256

    b14e80c81dd81f5f5c5d4a3b4f4df3ce36e79a107ed23e25b74ad62836ffefa8

  • SHA512

    7c936c19858bffe1cffc65e9ec31553f623535527d8c4a93c94ff7ad791251e63e2fc7e23827fd91e0ce2412a731b5af028910aba6c948c8468858fbb4abd80a

  • SSDEEP

    768:qEg24DKoyYH150BEexXfz2xGppy/a2MaOtRd9P9mg8rO71:qFVD11ij1oDM5hP7x

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libLauncher_rainbow.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\libLauncher_rainbow.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2920
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 676
        3⤵
        • Program crash
        PID:3528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2920 -ip 2920
    1⤵
      PID:672

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Discovery

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    Replay Monitor

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    Downloads

    • memory/2920-1-0x0000000002920000-0x0000000002E4F000-memory.dmp
      Filesize

      5.2MB

    • memory/2920-5-0x0000000002921000-0x0000000002BC9000-memory.dmp
      Filesize

      2.7MB

    • memory/2920-6-0x0000000002920000-0x0000000002E4F000-memory.dmp
      Filesize

      5.2MB

    • memory/2920-3-0x0000000002920000-0x0000000002E4F000-memory.dmp
      Filesize

      5.2MB

    • memory/2920-8-0x000000006E940000-0x000000006E964000-memory.dmp
      Filesize

      144KB

    • memory/2920-12-0x0000000061940000-0x0000000061EB5000-memory.dmp
      Filesize

      5.5MB

    • memory/2920-11-0x000000006FC40000-0x000000006FD41000-memory.dmp
      Filesize

      1.0MB

    • memory/2920-10-0x0000000064940000-0x0000000064954000-memory.dmp
      Filesize

      80KB

    • memory/2920-9-0x0000000068AC0000-0x0000000068ACC000-memory.dmp
      Filesize

      48KB

    • memory/2920-7-0x0000000063400000-0x0000000063415000-memory.dmp
      Filesize

      84KB