Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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

  • 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 30 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1204
      • C:\Users\Admin\AppData\Local\Temp\1999e484b85a43254eb5c7ce1a8e0a8bbaf27502c55613df58f7f48b4f41ab35.exe
        "C:\Users\Admin\AppData\Local\Temp\1999e484b85a43254eb5c7ce1a8e0a8bbaf27502c55613df58f7f48b4f41ab35.exe"
        2⤵
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1044
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2372
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2608
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1200
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              4⤵
                PID:2624

        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

              7zG.exe

              • Path C:\Program Files\7-Zip\7zG.exe
              • Size 717KB
              • SHA256 dae65a4be9e5c6e874a11208bf59de285f314beb0d1e5097192fa768ddeb085b
              • MD5 SHA1 SHA512 SSDEEP

              vcredist_x64.exe

              • Path C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe
              • Size 478KB
              • SHA256 65f0e48a590681fd14bf38dbbf806d91d1c8db9c6a90399e7082c4073472d206
              • MD5 SHA1 SHA512 SSDEEP

              _desktop.ini

              • Path F:\$RECYCLE.BIN\S-1-5-21-406356229-2805545415-1236085040-1000\_desktop.ini
              • Size 8B
              • SHA256 2d3dbb80989e5cc7ef9ef800cc986bb8dccf4ca1f78437040bccd59312a55593
              • MD5 SHA1 SHA512

              memory/1044-0-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/1044-7-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/1044-1743-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/1044-3966-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/1044-4063-0x0000000000400000-0x000000000043F000-memory.dmp

              memory/1204-3-0x00000000029F0000-0x00000000029F1000-memory.dmp