Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 10:31

General

  • Target

    3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe

  • Size

    598KB

  • MD5

    45abce50a00d40dff21edb7264824758

  • SHA1

    0861d2abbcf16bf6394dc7aadd341b348a3c8c4d

  • SHA256

    3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c

  • SHA512

    7097f34634f716609bc4bbe27af511a9fec24c555c25c22e712f3ce019b471328226030bb2939692f36a81cc24de105670b263d0fb7036375e60c8ddaee2a8f6

  • SSDEEP

    12288:5UBQPcc0hAuhEhFdSbgIntKR5VZfzJa2WR934n6Y:mQwhAuhgFd/ItQJdVWR9U/

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 9 IoCs

    AutoIT scripts compiled to PE executables.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe
    "C:\Users\Admin\AppData\Local\Temp\3f7b0d15f4cbe63e57fb06b57575bf6dd9eb777c737b0886250166768169fc6c.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
      2⤵
        PID:2868
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
        2⤵
          PID:2696
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
          2⤵
            PID:2016
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
            2⤵
              PID:2592
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
              2⤵
                PID:2716
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
                2⤵
                  PID:1268
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
                  2⤵
                    PID:2624
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
                    2⤵
                      PID:2808
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
                      2⤵
                        PID:2428
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
                        2⤵
                          PID:2812
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
                          2⤵
                            PID:2804
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
                            2⤵
                              PID:360
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
                              2⤵
                                PID:1716
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
                                2⤵
                                  PID:2444
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
                                  2⤵
                                    PID:1576
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
                                    2⤵
                                      PID:2192
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
                                      2⤵
                                        PID:2296
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.doc" /S /B /A
                                        2⤵
                                          PID:2560
                                        • C:\Windows\SysWOW64\cmd.exe
                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pdf" /S /B /A
                                          2⤵
                                            PID:2104
                                          • C:\Windows\SysWOW64\cmd.exe
                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppt" /S /B /A
                                            2⤵
                                              PID:324
                                            • C:\Windows\SysWOW64\cmd.exe
                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                              2⤵
                                                PID:624
                                              • C:\Windows\SysWOW64\cmd.exe
                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.xl" /S /B /A
                                                2⤵
                                                  PID:1568
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.csv" /S /B /A
                                                  2⤵
                                                    PID:1876
                                                  • C:\Windows\SysWOW64\cmd.exe
                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rtf" /S /B /A
                                                    2⤵
                                                      PID:1112
                                                    • C:\Windows\SysWOW64\cmd.exe
                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                                      2⤵
                                                        PID:2780
                                                      • C:\Windows\SysWOW64\cmd.exe
                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.mdb" /S /B /A
                                                        2⤵
                                                          PID:412
                                                        • C:\Windows\SysWOW64\cmd.exe
                                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.accdb" /S /B /A
                                                          2⤵
                                                            PID:2888
                                                          • C:\Windows\SysWOW64\cmd.exe
                                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pot" /S /B /A
                                                            2⤵
                                                              PID:3036
                                                            • C:\Windows\SysWOW64\cmd.exe
                                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pps" /S /B /A
                                                              2⤵
                                                                PID:1704
                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppa" /S /B /A
                                                                2⤵
                                                                  PID:1540
                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rar" /S /B /A
                                                                  2⤵
                                                                    PID:1672
                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.zip" /S /B /A
                                                                    2⤵
                                                                      PID:664
                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.tar" /S /B /A
                                                                      2⤵
                                                                        PID:2084
                                                                      • C:\Windows\SysWOW64\cmd.exe
                                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.7z" /S /B /A
                                                                        2⤵
                                                                          PID:2936
                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                          cmd /c start /min r.bat
                                                                          2⤵
                                                                            PID:1116
                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                              C:\Windows\system32\cmd.exe /K r.bat
                                                                              3⤵
                                                                              • Deletes itself
                                                                              PID:2892
                                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                                cmd /min /c del "C:\Users\Admin\AppData\Local\Temp\r.bat"
                                                                                4⤵
                                                                                  PID:900
                                                                                • C:\Windows\SysWOW64\taskkill.exe
                                                                                  Taskkill /IM cmd.exe /F
                                                                                  4⤵
                                                                                  • Kills process with taskkill
                                                                                  • Suspicious use of AdjustPrivilegeToken
                                                                                  PID:896

                                                                          Network

                                                                          MITRE ATT&CK Enterprise v15

                                                                          Replay Monitor

                                                                          Loading Replay Monitor...

                                                                          Downloads

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

                                                                            Filesize

                                                                            256B

                                                                            MD5

                                                                            75142646db87722e3cd216e84157f6ed

                                                                            SHA1

                                                                            7117081b0c4a11befd69160b469619f1c398ca5d

                                                                            SHA256

                                                                            0aa201bdd3c7b20a2888a317be005b00621db640fd6a8637f424d589fe53c146

                                                                            SHA512

                                                                            c5c6d56a32145de6d5f926030a91e3279b0e82a959370d159bd2d9673a6f62726d7cc39a0ad20ed020081d1576da9cffbf94400f39799433364f719418ed1846

                                                                          • memory/2036-1-0x0000000002D50000-0x0000000002E50000-memory.dmp

                                                                            Filesize

                                                                            1024KB

                                                                          • memory/2036-2-0x0000000004570000-0x000000000464D000-memory.dmp

                                                                            Filesize

                                                                            884KB

                                                                          • memory/2036-3-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB

                                                                          • memory/2036-4-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB

                                                                          • memory/2036-5-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB

                                                                          • memory/2036-6-0x0000000002D50000-0x0000000002E50000-memory.dmp

                                                                            Filesize

                                                                            1024KB

                                                                          • memory/2036-7-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB

                                                                          • memory/2036-8-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB

                                                                          • memory/2036-9-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB

                                                                          • memory/2036-10-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB

                                                                          • memory/2036-12-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                            Filesize

                                                                            40.0MB