Analysis

  • max time kernel
    95s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 01:53

General

  • Target

    b9d10140a4b19ca6327d7e319cf9bd88c897cdb7440b08bb9a82aebae1817e64N.dll

  • Size

    544KB

  • MD5

    003dbddc2b4d41825a920081a907eaf0

  • SHA1

    166ff4158ec03a589660017ed0ba35c0ca31e79e

  • SHA256

    b9d10140a4b19ca6327d7e319cf9bd88c897cdb7440b08bb9a82aebae1817e64

  • SHA512

    09fe14395b4a0b0cf2413403701d639f6a0b23224fc80f96177199b80fb92eaed5168cc0a91689111f7967f5044c7733a277b74f20553b281900cf1b44277f6f

  • SSDEEP

    12288:DhpUrEIZJqr1AkBWwNa5R0EYl795/amaX3QXaPKU5gqKQ:D/jG01NHXaPOvQ

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9d10140a4b19ca6327d7e319cf9bd88c897cdb7440b08bb9a82aebae1817e64N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9d10140a4b19ca6327d7e319cf9bd88c897cdb7440b08bb9a82aebae1817e64N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 400
          4⤵
          • Program crash
          PID:1648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 636
        3⤵
        • Program crash
        PID:3220
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2716 -ip 2716
    1⤵
      PID:1392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2008 -ip 2008
      1⤵
        PID:2356

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Windows\SysWOW64\rundll32mgr.exe

              Filesize

              84KB

              MD5

              797ea3998080a8d64bd071ac749c2285

              SHA1

              24e7d2db6d27265a936c72b16a14b31910a55df6

              SHA256

              cc2bd6be44d951965e960882aa128f0aa18e805e33a4cf99952ca5387007a1a5

              SHA512

              8656020cd52e46902058ce6eca6d823e8a84228cef10c30af05c48353c159e510baed333e19c29d25bd9e6e0a5bcdcfa1dcf053cf8544ad4bfe11392efdc088c

            • memory/2716-0-0x0000000010000000-0x0000000010089000-memory.dmp

              Filesize

              548KB

            • memory/2716-5-0x0000000010000000-0x0000000010089000-memory.dmp

              Filesize

              548KB