Analysis

  • max time kernel
    149s
  • max time network
    156s
  • 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, 00:46

General

  • Target
    f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b.exe
  • Size 1.3MB
  • Sample240613-a4lkeaxfle
  • SHA256 f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 64 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3488
      • C:\Users\Admin\AppData\Local\Temp\f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b.exe
        "C:\Users\Admin\AppData\Local\Temp\f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5000
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4764
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:3232
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5563.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1520
            • C:\Users\Admin\AppData\Local\Temp\f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b.exe
              "C:\Users\Admin\AppData\Local\Temp\f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b.exe"
              4⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:4516
              • C:\Windows\SysWOW64\rundll32.exe
                rundll32.exe advpack.dll,LaunchINFSection campaign.inf,DefaultInstall
                5⤵
                  PID:380
                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msninst.exe
                  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msninst.exe /Action:Wait
                  5⤵
                  • Executes dropped EXE
                  PID:2404
            • C:\Windows\Logo1_.exe
              C:\Windows\Logo1_.exe
              3⤵
              • Drops startup file
              • 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:1292
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2232
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:4928
                • C:\Windows\SysWOW64\net.exe
                  net stop "Kingsoft AntiVirus Service"
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4568
                  • C:\Windows\SysWOW64\net1.exe
                    C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                    5⤵
                      PID:4536

            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 264KB
                  • SHA256 5ead7b2db6bd91ffa233801881641df6c7fc35e7c1f1606ebb0293780e909ab1
                  • MD5 SHA1 SHA512 SSDEEP

                  7z.exe

                  • Path C:\Program Files\7-Zip\7z.exe
                  • Size 583KB
                  • SHA256 465180cf8ae7851bd9f0d9d3802cf252edefefb1846c1322bfab4a9bf7138ed5
                  • 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 649KB
                  • SHA256 834cd914a6bc7c3eadf3b23bacc01433aa6a32411ab547d958604a1c434518b7
                  • MD5 SHA1 SHA512 SSDEEP

                  $$a5563.bat

                  • Path C:\Users\Admin\AppData\Local\Temp\$$a5563.bat
                  • Size 722B
                  • SHA256 2d1ba6519c7a06f3c0d3a6bb752bcf85481ac335ef72caafeaf8ac208417e484
                  • MD5 SHA1 SHA512

                  ADVPACK.DLL

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ADVPACK.DLL
                  • Size 90KB
                  • SHA256 06eed244d89f6e15205d5beb8085ac33c0de486dfe30eec9fb73b91de07e5f62
                  • MD5 SHA1 SHA512 SSDEEP

                  MsnInst.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MsnInst.dll
                  • Size 244KB
                  • SHA256 30714be137b7b648b0c3aa2a7410467289b53a8e2601f8c208a3613e1d31d0f0
                  • MD5 SHA1 SHA512 SSDEEP

                  campaign.inf

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\campaign.inf
                  • Size 1KB
                  • SHA256 80ed31ae5890469ee38fe7b950149e2f488344d892f1ef5ac3dc3e7ff3de2d6c
                  • MD5 SHA1 SHA512

                  iasvcstb.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\iasvcstb.dll
                  • Size 26KB
                  • SHA256 ace81690c98cb396758dc016a76b77706924dd3a8598b3a0492bc12edb9af153
                  • MD5 SHA1 SHA512 SSDEEP

                  install.mar

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\install.mar
                  • Size 516KB
                  • SHA256 2143c7a5aa2f9d321fbd902d80ac43f4fe9c684d2e5a55fbc686820e06261d9f
                  • MD5 SHA1 SHA512 SSDEEP

                  msdbxi.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msdbxi.dll
                  • Size 82KB
                  • SHA256 2c2b10bb87662d1d61916784106a82cff510add0972112a9a14c03927b2d0846
                  • MD5 SHA1 SHA512 SSDEEP

                  msnihc.mar

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msnihc.mar
                  • Size 21KB
                  • SHA256 65118f920c6912e6a7dc6325698570fc7fa79beeb64d6204e6ca93f68ae0f692
                  • MD5 SHA1 SHA512 SSDEEP

                  msnilc.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msnilc.dll
                  • Size 31KB
                  • SHA256 3f0e18479c7f8f75045d88605bbfa290663092464816739080b21b02d61f2588
                  • MD5 SHA1 SHA512 SSDEEP

                  msninst.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msninst.exe
                  • Size 129KB
                  • SHA256 66d7811a891b614f7fc174ae5a3ea1d29d1edde50b12fcaf51c0dc5b54a20b4a
                  • MD5 SHA1 SHA512 SSDEEP

                  msnitd.mar

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msnitd.mar
                  • Size 62KB
                  • SHA256 35f135fd9c04cdaf78bad191872cc1aa9cc38056f7c76ba29f0669be9e07210d
                  • MD5 SHA1 SHA512 SSDEEP

                  msnms.ico

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msnms.ico
                  • Size 24KB
                  • SHA256 090ee05cef8113594959c4ba3d992eb1e5d2effb7f71ba8854adee27b8b6cf95
                  • MD5 SHA1 SHA512 SSDEEP

                  msnsign.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msnsign.dll
                  • Size 746KB
                  • SHA256 ccec6240c7a188e55156476d1bfcd06722c36bd7555f28845d747493529093d5
                  • MD5 SHA1 SHA512 SSDEEP

                  msnsusi.inf

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\msnsusi.inf
                  • Size 5KB
                  • SHA256 581a7e5bcf20a47f55e980b3b35e3881d72bb8c65f380857831906c9e6e332fd
                  • MD5 SHA1 SHA512 SSDEEP

                  unicows.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\unicows.dll
                  • Size 239KB
                  • SHA256 22f23cc65698741184ec34f46e6f69717644e0b5aabf5d5bd015101f2d72e56e
                  • MD5 SHA1 SHA512 SSDEEP

                  f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b.exe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\f28120fbbf9ce1bab38412f9d9a3daa45d18a4a720abc077045af20443f1e93b.exe.exe
                  • Size 1.3MB
                  • SHA256 4ecd3f8b60c60870cdd67abf319b373c3438bb7bceac46209b2c87bd5e73a3f6
                  • MD5 SHA1 SHA512 SSDEEP

                  Logo1_.exe

                  • Path C:\Windows\Logo1_.exe
                  • Size 39KB
                  • SHA256 6ce51f68013320d84f843b0d21c772d7fe1316ae74987e719dbd96ad59fa2273
                  • MD5 SHA1 SHA512 SSDEEP

                  _desktop.ini

                  • Path F:\$RECYCLE.BIN\S-1-5-21-2539840389-1261165778-1087677076-1000\_desktop.ini
                  • Size 9B
                  • SHA256 47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42
                  • MD5 SHA1 SHA512

                  memory/1292-201-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/1292-11-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/1292-2969-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/1292-8855-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/5000-10-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/5000-0-0x0000000000400000-0x000000000043D000-memory.dmp