Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 18:51

General

  • Target

    4e19f1f774a77518c3823c83c9677728d3fab3b4c5feebae03dcc3b262e66f9a.exe

  • Size

    39KB

  • MD5

    8a3b9e40a14334cceb40273473ea1720

  • SHA1

    0c4dea469d2dcc4741f0368f7d12a9b79d7a6887

  • SHA256

    4e19f1f774a77518c3823c83c9677728d3fab3b4c5feebae03dcc3b262e66f9a

  • SHA512

    c7d39433ca797ec739119d736a41ffbf80d06ba91aa649d0236a105bb7980d8d0583bd76dc7793107419da0c3525dc88f6c0f142c047177dd6702ee8b05f2cd4

  • SSDEEP

    768:znhO5RroZJ76739/dZVdfpULiAYXjPrN+8WEjrZMYjV8mp8w:znhe+Zk7VJbwlYXjPrsqrZMYR5p8w

Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3036
      • C:\Users\Admin\AppData\Local\Temp\4e19f1f774a77518c3823c83c9677728d3fab3b4c5feebae03dcc3b262e66f9a.exe
        "C:\Users\Admin\AppData\Local\Temp\4e19f1f774a77518c3823c83c9677728d3fab3b4c5feebae03dcc3b262e66f9a.exe"
        2⤵
        • Drops startup file
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4372
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1100
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:5076
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:5068
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              4⤵
                PID:5000

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1100-133-0x0000000000000000-mapping.dmp

        • memory/4372-132-0x0000000000400000-0x000000000043D000-memory.dmp

          Filesize

          244KB

        • memory/4372-137-0x0000000000400000-0x000000000043D000-memory.dmp

          Filesize

          244KB

        • memory/5000-136-0x0000000000000000-mapping.dmp

        • memory/5068-135-0x0000000000000000-mapping.dmp

        • memory/5076-134-0x0000000000000000-mapping.dmp