Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/05/2024, 15:10

General

  • Target
    7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe
  • Size 11.1MB
  • Sample240527-skab5she98
  • SHA256 7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 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 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3452
      • C:\Users\Admin\AppData\Local\Temp\7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe
        "C:\Users\Admin\AppData\Local\Temp\7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3764
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1616
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2364
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a2D4A.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3696
            • C:\Users\Admin\AppData\Local\Temp\7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe
              "C:\Users\Admin\AppData\Local\Temp\7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              • Suspicious use of WriteProcessMemory
              PID:2860
              • C:\Users\Admin\AppData\Local\Temp\7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe
                "C:\Users\Admin\AppData\Local\Temp\7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe" --type=collab-renderer --proc=2860
                5⤵
                • Executes dropped EXE
                PID:3112
          • 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:4732
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:3968
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:3836
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3412
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2980

          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 666ca0e926bc557503309ada0633c33844d0feb048c815c503f381a0bf6ebddc
                • MD5 SHA1 SHA512 SSDEEP

                7z.exe

                • Path C:\Program Files\7-Zip\7z.exe
                • Size 577KB
                • SHA256 07481182a1f0952663948dc601a4532f1ed257cb853bc032c0557173040e995c
                • 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 643KB
                • SHA256 10579b661dade8697f252204f241952eb2029ea6978165f9336fd60a72b3205e
                • MD5 SHA1 SHA512 SSDEEP

                $$a2D4A.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a2D4A.bat
                • Size 722B
                • SHA256 e0cfdfb6b8a2503039f813571f305e4ebef134ce969fda8bfda3898b5b50db77
                • MD5 SHA1 SHA512

                7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\7e8acb7323dc4174010826f62755e29769e07e9aceb1eceeee17dcb2cca253ab.exe.exe
                • Size 11.0MB
                • SHA256 5f1d9218f9735a763ffecc47c7b6f0c342b7f1a5da835733e0b3b73903f864a0
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 33KB
                • SHA256 3e02caf1f845080b75cf865164adfa1c4855d5b6cab6af1664a97c37f3bab646
                • MD5 SHA1 SHA512 SSDEEP

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-711569230-3659488422-571408806-1000\_desktop.ini
                • Size 9B
                • SHA256 968b715c081472526487d60da8968e9b3bde2dac103f69beb3f6abe6ef7bc191
                • MD5 SHA1 SHA512

                memory/3764-10-0x0000000000400000-0x000000000043D000-memory.dmp

                memory/3764-0-0x0000000000400000-0x000000000043D000-memory.dmp

                memory/4732-19-0x0000000000400000-0x000000000043D000-memory.dmp

                memory/4732-3467-0x0000000000400000-0x000000000043D000-memory.dmp

                memory/4732-11-0x0000000000400000-0x000000000043D000-memory.dmp

                memory/4732-8661-0x0000000000400000-0x000000000043D000-memory.dmp