Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 19:58

General

  • Target
    1999e484b85a43254eb5c7ce1a8e0a8bbaf27502c55613df58f7f48b4f41ab35.exe
  • Size 33KB
  • Sample240407-ypys7ada3x
  • SHA256 1999e484b85a43254eb5c7ce1a8e0a8bbaf27502c55613df58f7f48b4f41ab35
  • MD5 SHA1 SHA512 SSDEEP
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 21 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:3440
      • C:\Users\Admin\AppData\Local\Temp\1999e484b85a43254eb5c7ce1a8e0a8bbaf27502c55613df58f7f48b4f41ab35.exe
        "C:\Users\Admin\AppData\Local\Temp\1999e484b85a43254eb5c7ce1a8e0a8bbaf27502c55613df58f7f48b4f41ab35.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:2748
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4888
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:3232
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3604
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              4⤵
                PID:1520

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              GoogleUpdateCore.exe

              • Path C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe
              • Size 258KB
              • SHA256 1ea60a85ed4901ceb24b582d53251a8a4565fe7baa5fa3b61bdbdd8152bd93bf
              • MD5 SHA1 SHA512 SSDEEP

              dotnet.exe

              • Path C:\Program Files\dotnet\dotnet.exe
              • Size 171KB
              • SHA256 0aa10f34fd6e443727817f49157b78f01860247c8b9e02c29e09b80e8272b61b
              • MD5 SHA1 SHA512 SSDEEP

              vcredist_x86.exe

              • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
              • Size 488KB
              • SHA256 56912c50f21ad52af2fd4e0062ea113de7971e8123ec86e761791c06b76a5a9c
              • MD5 SHA1 SHA512 SSDEEP

              _desktop.ini

              • Path F:\$RECYCLE.BIN\S-1-5-21-983155329-280873152-1838004294-1000\_desktop.ini
              • Size 8B
              • SHA256 2d3dbb80989e5cc7ef9ef800cc986bb8dccf4ca1f78437040bccd59312a55593
              • MD5 SHA1 SHA512

              memory/2748-0-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/2748-3-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/2748-3029-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/2748-8639-0x0000000000400000-0x000000000043F000-memory.dmp