Analysis

  • max time kernel
    150s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 04:36

General

  • Target
    a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90.exe
  • Size 275KB
  • Sample240613-e8kacsxhpl
  • SHA256 a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3564
      • C:\Users\Admin\AppData\Local\Temp\a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90.exe
        "C:\Users\Admin\AppData\Local\Temp\a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:3632
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a3C9B.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1936
          • C:\Users\Admin\AppData\Local\Temp\a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90.exe
            "C:\Users\Admin\AppData\Local\Temp\a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4788
            • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
              "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\
              5⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              PID:2300
        • 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
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2332
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4416
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:3908

      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 251KB
            • SHA256 ac040dc7f1ccb3b1a1a0ba7f57c5f1787081c64b56d3af79fdfc24aa69759a9f
            • MD5 SHA1 SHA512 SSDEEP

            7z.exe

            • Path C:\Program Files\7-Zip\7z.exe
            • Size 570KB
            • SHA256 1f2ae1902b9b9c1cb54f98a02d3deff12bbbb95e16911640b3bba79113799f77
            • 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 636KB
            • SHA256 c2f452c90356d0070c71ce17da69c4245dc24f46e1215eca22748567e48279d9
            • MD5 SHA1 SHA512 SSDEEP

            $$a3C9B.bat

            • Path C:\Users\Admin\AppData\Local\Temp\$$a3C9B.bat
            • Size 722B
            • SHA256 9a9c4c54c041e7ed7cfb1de85cf52959cdbe8fccd557010d4df14211b3f273ec
            • MD5 SHA1 SHA512

            a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90.exe.exe

            • Path C:\Users\Admin\AppData\Local\Temp\a02420dab560800c6d86285ce39f1da859ac2f76e3ddd19fd0aab82f6919ab90.exe.exe
            • Size 248KB
            • SHA256 4cb64e345f2ccf5bb6b3493dc55b11048ef249baed3645b09033758c652734af
            • MD5 SHA1 SHA512 SSDEEP

            StdUtils.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsc3F2D.tmp\StdUtils.dll
            • Size 100KB
            • SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
            • MD5 SHA1 SHA512 SSDEEP

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsc3F2D.tmp\System.dll
            • Size 12KB
            • SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
            • MD5 SHA1 SHA512 SSDEEP

            WinShell.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsc3F2D.tmp\WinShell.dll
            • Size 3KB
            • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
            • MD5 SHA1 SHA512

            nsProcess.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsc3F2D.tmp\nsProcess.dll
            • Size 4KB
            • SHA256 30c6c3dd3cc7fcea6e6081ce821adc7b2888542dae30bf00e881c0a105eb4d11
            • MD5 SHA1 SHA512 SSDEEP

            Logo1_.exe

            • Path C:\Windows\Logo1_.exe
            • Size 26KB
            • SHA256 44dd551c7c131158282194d127971c71fa4e16b60b526f3886427bdd1b52eae9
            • MD5 SHA1 SHA512 SSDEEP

            _desktop.ini

            • Path F:\$RECYCLE.BIN\S-1-5-21-1337824034-2731376981-3755436523-1000\_desktop.ini
            • Size 9B
            • SHA256 47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42
            • MD5 SHA1 SHA512

            memory/2332-69-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2332-63-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2332-73-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2332-13-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2332-1267-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2332-4833-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2332-56-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/2332-5272-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/3632-0-0x0000000000400000-0x0000000000434000-memory.dmp

            memory/3632-12-0x0000000000400000-0x0000000000434000-memory.dmp