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Analysis

  • max time kernel
    60s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/07/2024, 07:17

General

  • Target

    a5eb4498bc6bd9c2e60c56adc4642a40N.dll

  • Size

    239KB

  • MD5

    a5eb4498bc6bd9c2e60c56adc4642a40

  • SHA1

    4561ea195aeec468243918eee92171cde72854a3

  • SHA256

    f39996733cdab95af610a517e96147f4f34c657b6ff55e2e27f9dcb91e599d3a

  • SHA512

    69a209d984895ad10f2924173b35e62c614ba1eacfcc5ef728f15fc741d86c397832fffff9c9845908a30828b6bdfef3adf26ffc9a745c00c3a480f02bc87c4f

  • SSDEEP

    6144:q7gMPBCqsXGOOPzlX9ee5W09Wvj/Dng+X5Cjz0eUR:czsg+9v3gQ55em

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in System32 directory 58 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 62 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5eb4498bc6bd9c2e60c56adc4642a40N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3860
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5eb4498bc6bd9c2e60c56adc4642a40N.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2520
      • C:\Users\Admin\AppData\Local\Temp\B40E.tmp
        C:\Users\Admin\AppData\Local\Temp\B40E.tmp
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        PID:2272
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2520 -s 628
        3⤵
        • Program crash
        PID:4504
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2520 -ip 2520
    1⤵
      PID:4976

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\B40E.tmp

      Filesize

      145KB

      MD5

      c610e7ccd6859872c585b2a85d7dc992

      SHA1

      362b3d4b72e3add687c209c79b500b7c6a246d46

      SHA256

      14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

      SHA512

      8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

    • memory/2520-2-0x0000000010001000-0x0000000010002000-memory.dmp

      Filesize

      4KB

    • memory/2520-1-0x0000000002BB0000-0x0000000002BEA000-memory.dmp

      Filesize

      232KB

    • memory/2520-0-0x0000000002BB0000-0x0000000002BEA000-memory.dmp

      Filesize

      232KB