Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/08/2024, 15:54

General

  • Target
    a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d.exe
  • Size 5.7MB
  • Sample240813-tcjraaserc
  • SHA256 a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • 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 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3480
      • C:\Users\Admin\AppData\Local\Temp\a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d.exe
        "C:\Users\Admin\AppData\Local\Temp\a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a6457.bat
          3⤵
          • System Location Discovery: System Language Discovery
          PID:4896
          • C:\Users\Admin\AppData\Local\Temp\a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d.exe
            "C:\Users\Admin\AppData\Local\Temp\a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d.exe"
            4⤵
            • Executes dropped EXE
            PID:4148
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2644
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3608
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:232

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          GoogleUpdateCore.exe

          • Path C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe
          • Size 247KB
          • SHA256 7bba2c3cd372f153d1b2848cd55194fb6c0af7e0b089144344b9fab6ab5f596b
          • MD5 SHA1 SHA512 SSDEEP

          7z.exe

          • Path C:\Program Files\7-Zip\7z.exe
          • Size 573KB
          • SHA256 e71ab290da0fd40ed3e0f1cd776e214c6c514e7e0fa716108f7e7a05c2ae6ac5
          • MD5 SHA1 SHA512 SSDEEP

          windowsdesktop-runtime-8.0.2-win-x64.exe

          • Path C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe
          • Size 639KB
          • SHA256 d2c7832ddb52cfbb750dfffae048fd9c6a9cf06a52b7de91a0be255dffadef4e
          • MD5 SHA1 SHA512 SSDEEP

          $$a6457.bat

          • Path C:\Users\Admin\AppData\Local\Temp\$$a6457.bat
          • Size 722B
          • SHA256 9371b801661e7d9d8d2ddbe3dadeeed5b4a37c30c5cb58726b1d6aaa372d5640
          • MD5 SHA1 SHA512

          a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d.exe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\a348df18c1080317bb7b4fb8f313275541a3245a0be05cb355fd73bf87c1073d.exe.exe
          • Size 5.7MB
          • SHA256 f5ee36de8edf9be2ac2752b219cfdcb7ca1677071b8e116cb876306e9f1b6628
          • MD5 SHA1 SHA512 SSDEEP

          Logo1_.exe

          • Path C:\Windows\Logo1_.exe
          • Size 29KB
          • SHA256 2874cadb77d3b60d369292df01960eb22a8cc1db7c50d799f965e6e2da6169d7
          • MD5 SHA1 SHA512 SSDEEP

          _desktop.ini

          • Path F:\$RECYCLE.BIN\S-1-5-21-2718105630-359604950-2820636825-1000\_desktop.ini
          • Size 9B
          • SHA256 d069f2206a0ca683611b357b347af3abd4c559602b5617591232512e6c0e1b02
          • MD5 SHA1 SHA512

          memory/2644-26-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-32-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-36-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-19-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-74-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-1233-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-10-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-4791-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2644-5236-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2860-0-0x0000000000400000-0x0000000000436000-memory.dmp

          memory/2860-8-0x0000000000400000-0x0000000000436000-memory.dmp