Analysis

  • max time kernel
    174s
  • max time network
    195s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-07-2022 08:03

General

  • Target

    4c0103c745fa6e173821035c304863d751bea9c073d19070d9ebf8685da95040.exe

  • Size

    141KB

  • MD5

    77067974a70af43a3cadf88219d1e28c

  • SHA1

    7aa8fd4d0e0f44a4ed37f8542f7a1b0bc9faa58c

  • SHA256

    4c0103c745fa6e173821035c304863d751bea9c073d19070d9ebf8685da95040

  • SHA512

    9872bcfd51d5e05d17ad23410326744c13d6d757a998867043a906475cde22daa0ab523bedbf430b8e48043c340e382c74978089ecf0e39cd56d4797b60cc09d

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c0103c745fa6e173821035c304863d751bea9c073d19070d9ebf8685da95040.exe
    "C:\Users\Admin\AppData\Local\Temp\4c0103c745fa6e173821035c304863d751bea9c073d19070d9ebf8685da95040.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\5769805074060605\winsvcs.exe
      C:\Windows\5769805074060605\winsvcs.exe
      2⤵
      • Executes dropped EXE
      PID:1056
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1056 -s 508
        3⤵
        • Program crash
        PID:4340
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 548
      2⤵
      • Program crash
      PID:4424
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 1056 -ip 1056
    1⤵
      PID:3040
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 684 -ip 684
      1⤵
        PID:4400

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Windows\5769805074060605\winsvcs.exe

        Filesize

        141KB

        MD5

        77067974a70af43a3cadf88219d1e28c

        SHA1

        7aa8fd4d0e0f44a4ed37f8542f7a1b0bc9faa58c

        SHA256

        4c0103c745fa6e173821035c304863d751bea9c073d19070d9ebf8685da95040

        SHA512

        9872bcfd51d5e05d17ad23410326744c13d6d757a998867043a906475cde22daa0ab523bedbf430b8e48043c340e382c74978089ecf0e39cd56d4797b60cc09d

      • C:\Windows\5769805074060605\winsvcs.exe

        Filesize

        141KB

        MD5

        77067974a70af43a3cadf88219d1e28c

        SHA1

        7aa8fd4d0e0f44a4ed37f8542f7a1b0bc9faa58c

        SHA256

        4c0103c745fa6e173821035c304863d751bea9c073d19070d9ebf8685da95040

        SHA512

        9872bcfd51d5e05d17ad23410326744c13d6d757a998867043a906475cde22daa0ab523bedbf430b8e48043c340e382c74978089ecf0e39cd56d4797b60cc09d

      • memory/684-130-0x0000000000549000-0x000000000054C000-memory.dmp

        Filesize

        12KB

      • memory/684-131-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/684-137-0x0000000000549000-0x000000000054C000-memory.dmp

        Filesize

        12KB

      • memory/1056-132-0x0000000000000000-mapping.dmp

      • memory/1056-135-0x00000000007A9000-0x00000000007AD000-memory.dmp

        Filesize

        16KB

      • memory/1056-136-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB