Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 13:32

General

  • Target

    b0b4550ba09080e02c8a15cec8b5aeaa9fbb193cec1d92c793bdede78a70cec6.exe

  • Size

    588KB

  • MD5

    89aafef2f334d6349d3d850e7f68f10f

  • SHA1

    97b4b5f19be70177dc5f867ed580478c9dc7e2b6

  • SHA256

    b0b4550ba09080e02c8a15cec8b5aeaa9fbb193cec1d92c793bdede78a70cec6

  • SHA512

    b44bcba8e659678938aa21bd1a9d74706e80564020dc1826d38e2aadde946a22180174e777406648601daad09a79a8621778d84c0a26480dd81348d5cc58320e

  • SSDEEP

    12288:DpTALXjWMzp7E9Yy+PIPx2TQ1RABd89XBJm3QXNOZJxRYE601YljkWhM6A+:DpT2h7E6r5Q7AaJBo3QXerYfjT

Malware Config

Signatures

  • OutSteel

    OutSteel is a file uploader and document stealer written in AutoIT.

  • OutSteel batch script 1 IoCs

    Detects batch script dropped by OutSteel

  • Deletes itself 1 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 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 16 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b0b4550ba09080e02c8a15cec8b5aeaa9fbb193cec1d92c793bdede78a70cec6.exe
    "C:\Users\Admin\AppData\Local\Temp\b0b4550ba09080e02c8a15cec8b5aeaa9fbb193cec1d92c793bdede78a70cec6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Users\Admin\AppData\Local\Temp\b0b4550ba09080e02c8a15cec8b5aeaa9fbb193cec1d92c793bdede78a70cec6.exe
      C:\Users\Admin\AppData\Local\Temp\b0b4550ba09080e02c8a15cec8b5aeaa9fbb193cec1d92c793bdede78a70cec6.exe
      2⤵
      • Enumerates connected drives
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
        3⤵
          PID:2536
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
          3⤵
            PID:2728
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
            3⤵
              PID:2764
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
              3⤵
                PID:2568
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
                3⤵
                  PID:2448
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
                  3⤵
                    PID:2720
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
                    3⤵
                      PID:1592
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
                      3⤵
                        PID:2420
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
                        3⤵
                          PID:2520
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
                          3⤵
                            PID:2848
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
                            3⤵
                              PID:1820
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
                              3⤵
                                PID:1032
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
                                3⤵
                                  PID:1644
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
                                  3⤵
                                    PID:1332
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
                                    3⤵
                                      PID:1764
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
                                      3⤵
                                        PID:3036
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
                                        3⤵
                                          PID:2824
                                        • C:\Windows\SysWOW64\cmd.exe
                                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.txt" /S /B /A
                                          3⤵
                                            PID:392
                                          • C:\Windows\SysWOW64\cmd.exe
                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.doc" /S /B /A
                                            3⤵
                                              PID:1828
                                            • C:\Windows\SysWOW64\cmd.exe
                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pdf" /S /B /A
                                              3⤵
                                                PID:1736
                                              • C:\Windows\SysWOW64\cmd.exe
                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppt" /S /B /A
                                                3⤵
                                                  PID:2988
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                                  3⤵
                                                    PID:2832
                                                  • C:\Windows\SysWOW64\cmd.exe
                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.xl" /S /B /A
                                                    3⤵
                                                      PID:1512
                                                    • C:\Windows\SysWOW64\cmd.exe
                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.csv" /S /B /A
                                                      3⤵
                                                        PID:1620
                                                      • C:\Windows\SysWOW64\cmd.exe
                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rtf" /S /B /A
                                                        3⤵
                                                          PID:2232
                                                        • C:\Windows\SysWOW64\cmd.exe
                                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                                          3⤵
                                                            PID:2200
                                                          • C:\Windows\SysWOW64\cmd.exe
                                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.mdb" /S /B /A
                                                            3⤵
                                                              PID:2388
                                                            • C:\Windows\SysWOW64\cmd.exe
                                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.accdb" /S /B /A
                                                              3⤵
                                                                PID:2560
                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pot" /S /B /A
                                                                3⤵
                                                                  PID:2712
                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pps" /S /B /A
                                                                  3⤵
                                                                    PID:2440
                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppa" /S /B /A
                                                                    3⤵
                                                                      PID:2436
                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rar" /S /B /A
                                                                      3⤵
                                                                        PID:2340
                                                                      • C:\Windows\SysWOW64\cmd.exe
                                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.zip" /S /B /A
                                                                        3⤵
                                                                          PID:2604
                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.tar" /S /B /A
                                                                          3⤵
                                                                            PID:320
                                                                          • C:\Windows\SysWOW64\cmd.exe
                                                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.7z" /S /B /A
                                                                            3⤵
                                                                              PID:2680
                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.txt" /S /B /A
                                                                              3⤵
                                                                                PID:2236
                                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                                cmd /c start /min r.bat
                                                                                3⤵
                                                                                  PID:1936
                                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                                    C:\Windows\system32\cmd.exe /K r.bat
                                                                                    4⤵
                                                                                    • Deletes itself
                                                                                    PID:1820
                                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                                      cmd /min /c del "C:\Users\Admin\AppData\Local\Temp\r.bat"
                                                                                      5⤵
                                                                                        PID:1692
                                                                                      • C:\Windows\SysWOW64\taskkill.exe
                                                                                        Taskkill /IM cmd.exe /F
                                                                                        5⤵
                                                                                        • Kills process with taskkill
                                                                                        • Suspicious use of AdjustPrivilegeToken
                                                                                        PID:2228

                                                                              Network

                                                                              MITRE ATT&CK Enterprise v15

                                                                              Replay Monitor

                                                                              Loading Replay Monitor...

                                                                              Downloads

                                                                              • C:\Users\Admin\AppData\Local\Temp\r.bat

                                                                                Filesize

                                                                                256B

                                                                                MD5

                                                                                5367805f2041fd812015cdcda89e30e5

                                                                                SHA1

                                                                                fa8c2b05a6b848eec470a85b62d3a909522b8388

                                                                                SHA256

                                                                                96d9464290eeebd77c05706c291258e4d5a8f0a80478e118fc9c934ec0489511

                                                                                SHA512

                                                                                c043c1d9fda5761c8e05195c7b78d4cc705c4ef7bf0c2c8259da32812e698532b73bcace51d236d921c834414d1eac0f21c8d0087c4517772ff6047ee8503df3

                                                                              • memory/2136-51-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-63-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-27-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-43-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-39-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-6-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-8-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-9-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-15-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-19-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-155-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-81-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-4-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-47-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-67-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2136-59-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2904-2-0x0000000007190000-0x00000000071D0000-memory.dmp

                                                                                Filesize

                                                                                256KB

                                                                              • memory/2904-0-0x0000000000F40000-0x0000000000FD8000-memory.dmp

                                                                                Filesize

                                                                                608KB

                                                                              • memory/2904-7-0x0000000074360000-0x0000000074A4E000-memory.dmp

                                                                                Filesize

                                                                                6.9MB

                                                                              • memory/2904-3-0x0000000000260000-0x0000000000270000-memory.dmp

                                                                                Filesize

                                                                                64KB

                                                                              • memory/2904-1-0x0000000074360000-0x0000000074A4E000-memory.dmp

                                                                                Filesize

                                                                                6.9MB