Analysis

  • max time kernel
    143s
  • max time network
    88s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 14:27

General

  • Target

    dochus20230925.exe

  • Size

    1.0MB

  • MD5

    363044c48c8d035c08cddcdb22bb0838

  • SHA1

    6ae25dd4586629db60429c3c66cac81ee735c9dc

  • SHA256

    7d31211e88bbc31cd128c1b5a3ae9e1dbbb823b449f807e3d3a6669047810dc1

  • SHA512

    c98eff4c05ccd72906c50ea863cece139ea27ef3aba9ed5c19c32338006b092b18176d628345695000a0d4d3ba5a99f9990ff29f1d2ebb716a5e3ea57f85b302

  • SSDEEP

    24576:eRT5oEFwWfz/1sAsSn46qttH6n6MYAUH+5ZxGIAU:eN5EWr/1sZSn46qX5J+5ZxRh

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2140
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:1928
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
        3⤵
          PID:1432
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:824
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
            4⤵
            • Creates scheduled task(s)
            PID:2008
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
          3⤵
            PID:2328
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:2724
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2792
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
              3⤵
              • Creates scheduled task(s)
              PID:2540
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            2⤵
              PID:2776
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {7EE8547E-AB65-4B46-8980-84EF59F4B8D1} S-1-5-21-3849525425-30183055-657688904-1000:KGPMNUDG\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:1668
            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
              C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1560
              • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                3⤵
                • Executes dropped EXE
                • Accesses Microsoft Outlook profiles
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • outlook_office_path
                • outlook_win_path
                PID:1904
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
                3⤵
                  PID:1800
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                  3⤵
                    PID:2592
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                      4⤵
                      • Creates scheduled task(s)
                      PID:1328
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                    3⤵
                      PID:764
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k netsvcs
                  1⤵
                    PID:2016
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k netsvcs
                    1⤵
                      PID:1608
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k netsvcs
                      1⤵
                        PID:1856

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                        Filesize

                        621KB

                        MD5

                        ed9d91fe584d5109d4067734ac452753

                        SHA1

                        c277e57866833509d94787fc6f4d634a2714825d

                        SHA256

                        3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                        SHA512

                        a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                      • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                        Filesize

                        621KB

                        MD5

                        ed9d91fe584d5109d4067734ac452753

                        SHA1

                        c277e57866833509d94787fc6f4d634a2714825d

                        SHA256

                        3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                        SHA512

                        a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                      • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                        Filesize

                        621KB

                        MD5

                        ed9d91fe584d5109d4067734ac452753

                        SHA1

                        c277e57866833509d94787fc6f4d634a2714825d

                        SHA256

                        3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                        SHA512

                        a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                      • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                        Filesize

                        621KB

                        MD5

                        ed9d91fe584d5109d4067734ac452753

                        SHA1

                        c277e57866833509d94787fc6f4d634a2714825d

                        SHA256

                        3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                        SHA512

                        a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                      • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

                        Filesize

                        1.0MB

                        MD5

                        363044c48c8d035c08cddcdb22bb0838

                        SHA1

                        6ae25dd4586629db60429c3c66cac81ee735c9dc

                        SHA256

                        7d31211e88bbc31cd128c1b5a3ae9e1dbbb823b449f807e3d3a6669047810dc1

                        SHA512

                        c98eff4c05ccd72906c50ea863cece139ea27ef3aba9ed5c19c32338006b092b18176d628345695000a0d4d3ba5a99f9990ff29f1d2ebb716a5e3ea57f85b302

                      • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

                        Filesize

                        1.0MB

                        MD5

                        363044c48c8d035c08cddcdb22bb0838

                        SHA1

                        6ae25dd4586629db60429c3c66cac81ee735c9dc

                        SHA256

                        7d31211e88bbc31cd128c1b5a3ae9e1dbbb823b449f807e3d3a6669047810dc1

                        SHA512

                        c98eff4c05ccd72906c50ea863cece139ea27ef3aba9ed5c19c32338006b092b18176d628345695000a0d4d3ba5a99f9990ff29f1d2ebb716a5e3ea57f85b302

                      • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

                        Filesize

                        1.0MB

                        MD5

                        363044c48c8d035c08cddcdb22bb0838

                        SHA1

                        6ae25dd4586629db60429c3c66cac81ee735c9dc

                        SHA256

                        7d31211e88bbc31cd128c1b5a3ae9e1dbbb823b449f807e3d3a6669047810dc1

                        SHA512

                        c98eff4c05ccd72906c50ea863cece139ea27ef3aba9ed5c19c32338006b092b18176d628345695000a0d4d3ba5a99f9990ff29f1d2ebb716a5e3ea57f85b302

                      • \Users\Admin\AppData\Local\Temp\svchost.exe

                        Filesize

                        621KB

                        MD5

                        ed9d91fe584d5109d4067734ac452753

                        SHA1

                        c277e57866833509d94787fc6f4d634a2714825d

                        SHA256

                        3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                        SHA512

                        a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                      • \Users\Admin\AppData\Local\Temp\svchost.exe

                        Filesize

                        621KB

                        MD5

                        ed9d91fe584d5109d4067734ac452753

                        SHA1

                        c277e57866833509d94787fc6f4d634a2714825d

                        SHA256

                        3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                        SHA512

                        a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                      • memory/1560-42-0x00000000000B0000-0x00000000001BA000-memory.dmp

                        Filesize

                        1.0MB

                      • memory/1560-43-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1560-88-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1560-41-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1904-74-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/1904-79-0x00000000001C0000-0x0000000000204000-memory.dmp

                        Filesize

                        272KB

                      • memory/1904-86-0x00000000001C0000-0x0000000000204000-memory.dmp

                        Filesize

                        272KB

                      • memory/1904-83-0x00000000001C0000-0x0000000000204000-memory.dmp

                        Filesize

                        272KB

                      • memory/1904-87-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1904-90-0x0000000004310000-0x0000000004350000-memory.dmp

                        Filesize

                        256KB

                      • memory/1904-91-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1904-92-0x0000000004310000-0x0000000004350000-memory.dmp

                        Filesize

                        256KB

                      • memory/1928-61-0x0000000000400000-0x0000000000418000-memory.dmp

                        Filesize

                        96KB

                      • memory/1928-66-0x0000000002490000-0x00000000024D0000-memory.dmp

                        Filesize

                        256KB

                      • memory/1928-65-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1928-54-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/1928-52-0x0000000000400000-0x0000000000418000-memory.dmp

                        Filesize

                        96KB

                      • memory/1928-89-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1928-50-0x0000000000400000-0x0000000000418000-memory.dmp

                        Filesize

                        96KB

                      • memory/1928-46-0x0000000000400000-0x0000000000418000-memory.dmp

                        Filesize

                        96KB

                      • memory/1928-48-0x0000000000400000-0x0000000000418000-memory.dmp

                        Filesize

                        96KB

                      • memory/1928-59-0x0000000000400000-0x0000000000418000-memory.dmp

                        Filesize

                        96KB

                      • memory/1928-56-0x0000000000400000-0x0000000000418000-memory.dmp

                        Filesize

                        96KB

                      • memory/2076-0-0x00000000002F0000-0x00000000003FA000-memory.dmp

                        Filesize

                        1.0MB

                      • memory/2076-5-0x0000000005120000-0x000000000523C000-memory.dmp

                        Filesize

                        1.1MB

                      • memory/2076-32-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2076-4-0x0000000000640000-0x0000000000680000-memory.dmp

                        Filesize

                        256KB

                      • memory/2076-3-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2076-2-0x0000000000640000-0x0000000000680000-memory.dmp

                        Filesize

                        256KB

                      • memory/2076-1-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2140-19-0x0000000000400000-0x0000000000444000-memory.dmp

                        Filesize

                        272KB

                      • memory/2140-24-0x0000000004BF0000-0x0000000004C30000-memory.dmp

                        Filesize

                        256KB

                      • memory/2140-35-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2140-36-0x0000000004BF0000-0x0000000004C30000-memory.dmp

                        Filesize

                        256KB

                      • memory/2140-21-0x0000000000400000-0x0000000000444000-memory.dmp

                        Filesize

                        272KB

                      • memory/2140-16-0x0000000000400000-0x0000000000444000-memory.dmp

                        Filesize

                        272KB

                      • memory/2140-22-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2140-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2140-12-0x0000000000400000-0x0000000000444000-memory.dmp

                        Filesize

                        272KB

                      • memory/2140-10-0x0000000000400000-0x0000000000444000-memory.dmp

                        Filesize

                        272KB

                      • memory/2140-8-0x0000000000400000-0x0000000000444000-memory.dmp

                        Filesize

                        272KB

                      • memory/2140-6-0x0000000000400000-0x0000000000444000-memory.dmp

                        Filesize

                        272KB

                      • memory/2784-44-0x0000000000580000-0x00000000005AC000-memory.dmp

                        Filesize

                        176KB

                      • memory/2784-31-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2784-30-0x0000000000EA0000-0x0000000000F42000-memory.dmp

                        Filesize

                        648KB

                      • memory/2784-38-0x0000000000DB0000-0x0000000000DF0000-memory.dmp

                        Filesize

                        256KB

                      • memory/2784-37-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2784-62-0x00000000740F0000-0x00000000747DE000-memory.dmp

                        Filesize

                        6.9MB