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Analysis

  • max time kernel
    91s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/07/2024, 20:58

General

  • Target

    ucmyqb.dll

  • Size

    12.8MB

  • MD5

    7a484f2b62bebd2b0ce404e36f768af5

  • SHA1

    cbf166ce093f64ba2270b1adede89868ad15ad97

  • SHA256

    89ed84f69d94e9674b45e924350ecc8ab953e7b1ebfcdf9438d24598e52197f2

  • SHA512

    c40a0bcbc5b5001df39f083b253daf0ce65229a2f04c5e927d2f50c3ec5d6874f8f6ee1100a0a621fb49ed5a3938daa4e1d8db377ebd89a430956b9cf0744b14

  • SSDEEP

    196608:frZ46+UTsubfbYzMTpsT+tkfW7qXObEYoMC1o6MiqhmWVAMn/x:frZ4gLbfbNpsCtkfC3K71+i+A

Score
5/10

Malware Config

Signatures

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ucmyqb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ucmyqb.dll,#1
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:1224
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1224 -s 704
        3⤵
        • Program crash
        PID:1452
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1224 -ip 1224
    1⤵
      PID:2572

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/1224-0-0x00000000010B0000-0x00000000010B1000-memory.dmp

      Filesize

      4KB

    • memory/1224-1-0x0000000073CB5000-0x00000000742DE000-memory.dmp

      Filesize

      6.2MB

    • memory/1224-2-0x00000000737F0000-0x0000000074FE2000-memory.dmp

      Filesize

      23.9MB

    • memory/1224-4-0x0000000073CB5000-0x00000000742DE000-memory.dmp

      Filesize

      6.2MB