Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    28-02-2022 03:21

General

  • Target

    7963f8606e4c0e7502a813969a04e1266e7cd20708bef19c338e8933c1b85eda.exe

  • Size

    1.0MB

  • MD5

    61a3d983a1fde813204b8f6f13842163

  • SHA1

    336a3a59b782b49c2253bd0afeefdb43b24f70b6

  • SHA256

    7963f8606e4c0e7502a813969a04e1266e7cd20708bef19c338e8933c1b85eda

  • SHA512

    a6cdbc9faae3f9d989d9c5f165dd56c3822997e463bbc924b61067fb1b1719b14ec8d60a4046ade564bdc310dd6177dfa8e84d04a0ac9226cd3f1cfdeb2adbe9

Malware Config

Signatures

  • OutSteel

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

  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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 24 IoCs

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

  • AutoIT Executable 5 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7963f8606e4c0e7502a813969a04e1266e7cd20708bef19c338e8933c1b85eda.exe
    "C:\Users\Admin\AppData\Local\Temp\7963f8606e4c0e7502a813969a04e1266e7cd20708bef19c338e8933c1b85eda.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Users\Admin\AppData\Local\Temp\7963f8606e4c0e7502a813969a04e1266e7cd20708bef19c338e8933c1b85eda.exe
      "C:\Users\Admin\AppData\Local\Temp\7963f8606e4c0e7502a813969a04e1266e7cd20708bef19c338e8933c1b85eda.exe"
      2⤵
      • Enumerates connected drives
      • Suspicious use of WriteProcessMemory
      PID:1524
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
        3⤵
          PID:960
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
          3⤵
            PID:1844
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
            3⤵
              PID:2044
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
              3⤵
                PID:1576
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
                3⤵
                  PID:964
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
                  3⤵
                    PID:1756
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
                    3⤵
                      PID:1068
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
                      3⤵
                        PID:452
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
                        3⤵
                          PID:908
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
                          3⤵
                            PID:1120
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
                            3⤵
                              PID:1608
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
                              3⤵
                                PID:576
                              • 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:1080
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
                                    3⤵
                                      PID:1392
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
                                      3⤵
                                        PID:868
                                      • C:\Windows\SysWOW64\cmd.exe
                                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
                                        3⤵
                                          PID:520

                                    Network

                                    MITRE ATT&CK Matrix ATT&CK v6

                                    Credential Access

                                    Credentials in Files

                                    1
                                    T1081

                                    Discovery

                                    Query Registry

                                    1
                                    T1012

                                    Peripheral Device Discovery

                                    1
                                    T1120

                                    System Information Discovery

                                    1
                                    T1082

                                    Collection

                                    Data from Local System

                                    1
                                    T1005

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    • memory/1524-67-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1524-65-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1524-70-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1524-69-0x0000000076731000-0x0000000076733000-memory.dmp
                                      Filesize

                                      8KB

                                    • memory/1524-63-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1524-68-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1524-66-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1524-62-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1524-64-0x0000000000400000-0x00000000004E2000-memory.dmp
                                      Filesize

                                      904KB

                                    • memory/1716-59-0x0000000000B21000-0x0000000000B22000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/1716-61-0x0000000000600000-0x0000000000606000-memory.dmp
                                      Filesize

                                      24KB

                                    • memory/1716-56-0x0000000000F40000-0x0000000001048000-memory.dmp
                                      Filesize

                                      1.0MB

                                    • memory/1716-55-0x000000007480E000-0x000000007480F000-memory.dmp
                                      Filesize

                                      4KB

                                    • memory/1716-60-0x00000000005F0000-0x0000000000604000-memory.dmp
                                      Filesize

                                      80KB

                                    • memory/1716-58-0x0000000000550000-0x0000000000578000-memory.dmp
                                      Filesize

                                      160KB

                                    • memory/1716-57-0x0000000000B20000-0x0000000000B21000-memory.dmp
                                      Filesize

                                      4KB