Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-04-2024 11:51

General

  • Target

    71e9cc55f159f2cec96de4f15b3c94c2b076f97d5d8cecb60b8857e7a8113a35.exe

  • Size

    661KB

  • MD5

    d9300ff1b9e6c7ef3f1c6cac4c30bb72

  • SHA1

    833a8f095aa555f3fa3e873adadc0879a4bcfc5a

  • SHA256

    71e9cc55f159f2cec96de4f15b3c94c2b076f97d5d8cecb60b8857e7a8113a35

  • SHA512

    820ebc7944f1eaea8ca0733aabf308b2ec6cba57a965c01fbcb697a6a6e9584855d2334bfb4b48339782f791edf6ff1740d01a5bb576c21197677d351cd76325

  • SSDEEP

    12288:UMuiU0Jflt9Cyu8kqV2IlrRaCycHRiPTiIKDYOuBikqxK63+JTve2:TTJflCyuIltaCvITKYOu4kD63+x22

Malware Config

Signatures

  • OutSteel

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

  • 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 10 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71e9cc55f159f2cec96de4f15b3c94c2b076f97d5d8cecb60b8857e7a8113a35.exe
    "C:\Users\Admin\AppData\Local\Temp\71e9cc55f159f2cec96de4f15b3c94c2b076f97d5d8cecb60b8857e7a8113a35.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of WriteProcessMemory
    PID:224
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
      2⤵
        PID:2892
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
        2⤵
          PID:2096
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
          2⤵
            PID:4956
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
            2⤵
              PID:1344
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
              2⤵
                PID:4908
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
                2⤵
                  PID:2252
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
                  2⤵
                    PID:4720
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
                    2⤵
                      PID:2692
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
                      2⤵
                        PID:3616
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
                        2⤵
                          PID:4628
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
                          2⤵
                            PID:4224
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
                            2⤵
                              PID:2256
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
                              2⤵
                                PID:2956
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
                                2⤵
                                  PID:4656
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
                                  2⤵
                                    PID:4312
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
                                    2⤵
                                      PID:2924
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
                                      2⤵
                                        PID:2920

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    • memory/224-1-0x0000000002D40000-0x0000000002E40000-memory.dmp

                                      Filesize

                                      1024KB

                                    • memory/224-2-0x0000000004A80000-0x0000000004B5D000-memory.dmp

                                      Filesize

                                      884KB

                                    • memory/224-3-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB

                                    • memory/224-4-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB

                                    • memory/224-6-0x0000000002D40000-0x0000000002E40000-memory.dmp

                                      Filesize

                                      1024KB

                                    • memory/224-7-0x0000000004A80000-0x0000000004B5D000-memory.dmp

                                      Filesize

                                      884KB

                                    • memory/224-8-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB

                                    • memory/224-10-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB

                                    • memory/224-12-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB

                                    • memory/224-14-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB

                                    • memory/224-16-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB

                                    • memory/224-18-0x0000000000400000-0x0000000002C16000-memory.dmp

                                      Filesize

                                      40.1MB