Analysis

  • max time kernel
    149s
  • 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 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

  • 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 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Program crash 1 IoCs
  • 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:2640
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
      2⤵
        PID:1424
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
        2⤵
          PID:220
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
          2⤵
            PID:4528
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
            2⤵
              PID:2816
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
              2⤵
                PID:4824
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
                2⤵
                  PID:4840
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
                  2⤵
                    PID:4264
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
                    2⤵
                      PID:2736
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
                      2⤵
                        PID:3468
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
                        2⤵
                          PID:952
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
                          2⤵
                            PID:2336
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
                            2⤵
                              PID:2460
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
                              2⤵
                                PID:748
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
                                2⤵
                                  PID:2496
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
                                  2⤵
                                    PID:5088
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
                                    2⤵
                                      PID:1836
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
                                      2⤵
                                        PID:2928
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.doc" /S /B /A
                                        2⤵
                                          PID:4000
                                        • C:\Windows\SysWOW64\cmd.exe
                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pdf" /S /B /A
                                          2⤵
                                            PID:4868
                                          • C:\Windows\SysWOW64\cmd.exe
                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppt" /S /B /A
                                            2⤵
                                              PID:3436
                                            • C:\Windows\SysWOW64\cmd.exe
                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                              2⤵
                                                PID:3888
                                              • C:\Windows\SysWOW64\cmd.exe
                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.xl" /S /B /A
                                                2⤵
                                                  PID:4236
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.csv" /S /B /A
                                                  2⤵
                                                    PID:4640
                                                  • C:\Windows\SysWOW64\cmd.exe
                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rtf" /S /B /A
                                                    2⤵
                                                      PID:4252
                                                    • C:\Windows\SysWOW64\cmd.exe
                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                                      2⤵
                                                        PID:3056
                                                      • C:\Windows\SysWOW64\cmd.exe
                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.mdb" /S /B /A
                                                        2⤵
                                                          PID:2984
                                                        • C:\Windows\SysWOW64\cmd.exe
                                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.accdb" /S /B /A
                                                          2⤵
                                                            PID:1476
                                                          • C:\Windows\SysWOW64\cmd.exe
                                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pot" /S /B /A
                                                            2⤵
                                                              PID:1872
                                                            • C:\Windows\SysWOW64\cmd.exe
                                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pps" /S /B /A
                                                              2⤵
                                                                PID:4884
                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppa" /S /B /A
                                                                2⤵
                                                                  PID:1084
                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rar" /S /B /A
                                                                  2⤵
                                                                    PID:2884
                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.zip" /S /B /A
                                                                    2⤵
                                                                      PID:1928
                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.tar" /S /B /A
                                                                      2⤵
                                                                        PID:2392
                                                                      • C:\Windows\SysWOW64\cmd.exe
                                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.7z" /S /B /A
                                                                        2⤵
                                                                          PID:2916
                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                          cmd /c start /min r.bat
                                                                          2⤵
                                                                            PID:2460
                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                              C:\Windows\system32\cmd.exe /K r.bat
                                                                              3⤵
                                                                                PID:5048
                                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                                  cmd /min /c del "C:\Users\Admin\AppData\Local\Temp\r.bat"
                                                                                  4⤵
                                                                                    PID:1020
                                                                                  • C:\Windows\SysWOW64\taskkill.exe
                                                                                    Taskkill /IM cmd.exe /F
                                                                                    4⤵
                                                                                    • Kills process with taskkill
                                                                                    • Suspicious use of AdjustPrivilegeToken
                                                                                    PID:3820
                                                                              • C:\Windows\SysWOW64\WerFault.exe
                                                                                C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1908
                                                                                2⤵
                                                                                • Program crash
                                                                                PID:1532
                                                                            • C:\Windows\SysWOW64\WerFault.exe
                                                                              C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2640 -ip 2640
                                                                              1⤵
                                                                                PID:4464

                                                                              Network

                                                                              MITRE ATT&CK Enterprise v15

                                                                              Replay Monitor

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                                                                              Downloads

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

                                                                                Filesize

                                                                                256B

                                                                                MD5

                                                                                75142646db87722e3cd216e84157f6ed

                                                                                SHA1

                                                                                7117081b0c4a11befd69160b469619f1c398ca5d

                                                                                SHA256

                                                                                0aa201bdd3c7b20a2888a317be005b00621db640fd6a8637f424d589fe53c146

                                                                                SHA512

                                                                                c5c6d56a32145de6d5f926030a91e3279b0e82a959370d159bd2d9673a6f62726d7cc39a0ad20ed020081d1576da9cffbf94400f39799433364f719418ed1846

                                                                              • memory/2640-1-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

                                                                                Filesize

                                                                                1024KB

                                                                              • memory/2640-2-0x0000000004970000-0x0000000004A4D000-memory.dmp

                                                                                Filesize

                                                                                884KB

                                                                              • memory/2640-3-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                                Filesize

                                                                                40.0MB

                                                                              • memory/2640-6-0x0000000000400000-0x0000000002C06000-memory.dmp

                                                                                Filesize

                                                                                40.0MB

                                                                              • memory/2640-7-0x0000000004970000-0x0000000004A4D000-memory.dmp

                                                                                Filesize

                                                                                884KB