Analysis

  • max time kernel
    125s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2023 00:31

General

  • Target

    91c7cded43648845e8acd59f3fafb6ce4fd5af517eb81a8e12e8c6640c07ff0f.dll

  • Size

    494KB

  • MD5

    59d048af2c940a65b683742fc0ee5bbf

  • SHA1

    7bccc3c45e7f476695c0d5b63d63d1a34be59251

  • SHA256

    91c7cded43648845e8acd59f3fafb6ce4fd5af517eb81a8e12e8c6640c07ff0f

  • SHA512

    bee99dee3a817eb02d221a5de5b72e9534fa365bee05ac3adfb12039ae97fe3f8a51ddf3b9ab551e8bd3643ce60e6520269f34598944ece25e88ed012a46dd10

  • SSDEEP

    12288:Q5XyxkU3lXU7QCy62PLxZ1YRmBnRibWZngiM/x:4CxvXU7Qx/9Z1XImi

Score
10/10

Malware Config

Extracted

Family

systembc

C2

64.176.214.51:443

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\91c7cded43648845e8acd59f3fafb6ce4fd5af517eb81a8e12e8c6640c07ff0f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\91c7cded43648845e8acd59f3fafb6ce4fd5af517eb81a8e12e8c6640c07ff0f.dll,#1
      2⤵
        PID:2176
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 632
          3⤵
          • Program crash
          PID:4360
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2176 -ip 2176
      1⤵
        PID:552

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2176-0-0x0000000001530000-0x0000000001536000-memory.dmp

        Filesize

        24KB

      • memory/2176-1-0x0000000001550000-0x0000000001557000-memory.dmp

        Filesize

        28KB

      • memory/2176-2-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/2176-3-0x0000000001530000-0x0000000001536000-memory.dmp

        Filesize

        24KB