Analysis

  • max time kernel
    125s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 13:19

General

  • Target

    a9a89bb76c6f06277b729bc2de5e1aaef05fc0d9675edbc0895c7591c35f17eb.exe

  • Size

    537KB

  • MD5

    7327a3dd34b3a6c218d00ef9cfa2ef1b

  • SHA1

    2b12fae645fce9c944e6035f6e69bdc67103f28d

  • SHA256

    a9a89bb76c6f06277b729bc2de5e1aaef05fc0d9675edbc0895c7591c35f17eb

  • SHA512

    e82f5027bff214293df7c390eeab6396e7a5dcb965bf0c57e6343c6c897f4a2804e37847b1b9790c2d5eee8f0adf551b93afadb7f5ff73556a6c552dd1c604f1

  • SSDEEP

    12288:fTfkeaLvOAyAEEuqlHJRzw+XE2uQXBirHdhqo+HSk:PaSAyAg4pK+LuQXBirHuoUl

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 17 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\a9a89bb76c6f06277b729bc2de5e1aaef05fc0d9675edbc0895c7591c35f17eb.exe
    "C:\Users\Admin\AppData\Local\Temp\a9a89bb76c6f06277b729bc2de5e1aaef05fc0d9675edbc0895c7591c35f17eb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\Users\Admin\AppData\Local\Temp\a9a89bb76c6f06277b729bc2de5e1aaef05fc0d9675edbc0895c7591c35f17eb.exe
      C:\Users\Admin\AppData\Local\Temp\a9a89bb76c6f06277b729bc2de5e1aaef05fc0d9675edbc0895c7591c35f17eb.exe
      2⤵
      • Enumerates connected drives
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
        3⤵
          PID:2668
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
          3⤵
            PID:2580
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
            3⤵
              PID:2728
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
              3⤵
                PID:2592
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
                3⤵
                  PID:2532
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
                  3⤵
                    PID:2164
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
                    3⤵
                      PID:2640
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
                      3⤵
                        PID:3000
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
                        3⤵
                          PID:1596
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
                          3⤵
                            PID:1828
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
                            3⤵
                              PID:1120
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
                              3⤵
                                PID:1456
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
                                3⤵
                                  PID:1800
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
                                  3⤵
                                    PID:1532
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
                                    3⤵
                                      PID:2108
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
                                      3⤵
                                        PID:2756
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
                                        3⤵
                                          PID:2840
                                        • C:\Windows\SysWOW64\cmd.exe
                                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.txt" /S /B /A
                                          3⤵
                                            PID:600
                                          • C:\Windows\SysWOW64\cmd.exe
                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.doc" /S /B /A
                                            3⤵
                                              PID:904
                                            • C:\Windows\SysWOW64\cmd.exe
                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pdf" /S /B /A
                                              3⤵
                                                PID:1620
                                              • C:\Windows\SysWOW64\cmd.exe
                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppt" /S /B /A
                                                3⤵
                                                  PID:1684
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                                  3⤵
                                                    PID:2392
                                                  • C:\Windows\SysWOW64\cmd.exe
                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.xl" /S /B /A
                                                    3⤵
                                                      PID:2648
                                                    • C:\Windows\SysWOW64\cmd.exe
                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.csv" /S /B /A
                                                      3⤵
                                                        PID:2660
                                                      • C:\Windows\SysWOW64\cmd.exe
                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rtf" /S /B /A
                                                        3⤵
                                                          PID:2684
                                                        • C:\Windows\SysWOW64\cmd.exe
                                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.dot" /S /B /A
                                                          3⤵
                                                            PID:2736
                                                          • C:\Windows\SysWOW64\cmd.exe
                                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.mdb" /S /B /A
                                                            3⤵
                                                              PID:2484
                                                            • C:\Windows\SysWOW64\cmd.exe
                                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.accdb" /S /B /A
                                                              3⤵
                                                                PID:2592
                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pot" /S /B /A
                                                                3⤵
                                                                  PID:2212
                                                                • C:\Windows\SysWOW64\cmd.exe
                                                                  C:\Windows\system32\cmd.exe /U /C DIR "f:\*.pps" /S /B /A
                                                                  3⤵
                                                                    PID:2544
                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                    C:\Windows\system32\cmd.exe /U /C DIR "f:\*.ppa" /S /B /A
                                                                    3⤵
                                                                      PID:2088
                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                      C:\Windows\system32\cmd.exe /U /C DIR "f:\*.rar" /S /B /A
                                                                      3⤵
                                                                        PID:1600
                                                                      • C:\Windows\SysWOW64\cmd.exe
                                                                        C:\Windows\system32\cmd.exe /U /C DIR "f:\*.zip" /S /B /A
                                                                        3⤵
                                                                          PID:1980
                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                          C:\Windows\system32\cmd.exe /U /C DIR "f:\*.tar" /S /B /A
                                                                          3⤵
                                                                            PID:2376
                                                                          • C:\Windows\SysWOW64\cmd.exe
                                                                            C:\Windows\system32\cmd.exe /U /C DIR "f:\*.7z" /S /B /A
                                                                            3⤵
                                                                              PID:2268
                                                                            • C:\Windows\SysWOW64\cmd.exe
                                                                              C:\Windows\system32\cmd.exe /U /C DIR "f:\*.txt" /S /B /A
                                                                              3⤵
                                                                                PID:1520
                                                                              • C:\Windows\SysWOW64\cmd.exe
                                                                                cmd /c start /min r.bat
                                                                                3⤵
                                                                                  PID:2092
                                                                                  • C:\Windows\SysWOW64\cmd.exe
                                                                                    C:\Windows\system32\cmd.exe /K r.bat
                                                                                    4⤵
                                                                                    • Deletes itself
                                                                                    PID:2300
                                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                                      cmd /min /c del "C:\Users\Admin\AppData\Local\Temp\r.bat"
                                                                                      5⤵
                                                                                        PID:1328
                                                                                      • C:\Windows\SysWOW64\taskkill.exe
                                                                                        Taskkill /IM cmd.exe /F
                                                                                        5⤵
                                                                                        • Kills process with taskkill
                                                                                        • Suspicious use of AdjustPrivilegeToken
                                                                                        PID:2672

                                                                              Network

                                                                              MITRE ATT&CK Enterprise v15

                                                                              Replay Monitor

                                                                              Loading Replay Monitor...

                                                                              Downloads

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

                                                                                Filesize

                                                                                256B

                                                                                MD5

                                                                                3ae1ba1347a97548e955fc221e35cf1e

                                                                                SHA1

                                                                                c670b6b4f2c956eb96303d981a1759c7ecc41427

                                                                                SHA256

                                                                                c0a5ffafb405fe63ff044be2c7e7b3ff75cc42ff67fff5bc2901bc2d0d54e0bb

                                                                                SHA512

                                                                                ef52bbe1de87f980bb5dd3fdc9e07a6d12d807c20bad7ba54731dadcd6360a64ace99ebed8740edac9347fa1219489b99236a3550ddbf8fd88df01616ae9707a

                                                                              • memory/856-0-0x0000000000B10000-0x0000000000B9A000-memory.dmp

                                                                                Filesize

                                                                                552KB

                                                                              • memory/856-1-0x0000000074800000-0x0000000074EEE000-memory.dmp

                                                                                Filesize

                                                                                6.9MB

                                                                              • memory/856-2-0x00000000049F0000-0x0000000004A30000-memory.dmp

                                                                                Filesize

                                                                                256KB

                                                                              • memory/856-3-0x0000000002130000-0x00000000021AA000-memory.dmp

                                                                                Filesize

                                                                                488KB

                                                                              • memory/856-4-0x0000000000480000-0x000000000048E000-memory.dmp

                                                                                Filesize

                                                                                56KB

                                                                              • memory/856-8-0x0000000074800000-0x0000000074EEE000-memory.dmp

                                                                                Filesize

                                                                                6.9MB

                                                                              • memory/2980-28-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-48-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-10-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-12-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-20-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-7-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-32-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-36-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-44-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-9-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-52-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-56-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-60-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-65-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-82-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-156-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB

                                                                              • memory/2980-5-0x0000000000400000-0x00000000004E2000-memory.dmp

                                                                                Filesize

                                                                                904KB