Analysis

  • max time kernel
    89s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2023 13:53

General

  • Target

    docfre20230925.exe

  • Size

    1.1MB

  • MD5

    a00366a3483d1d632223d68c8e6e3f15

  • SHA1

    9d3e8a5526c15408d28ad1af21937020accc5ff2

  • SHA256

    14bf7140553ce01a73ddd0bad30d173a14aa1614ee208b01f7a165969aefdc00

  • SHA512

    8a2579d06efaa4f49e73b50993ddd15728639c3ec73a743939cfcb1e2b46c899386719a0c83aca55891b54d7e639e9099254bc35a4ba1f21f6346934c93a5a24

  • SSDEEP

    24576:6oJkNU2vAuIan9AuMyLSisyKuMYc8u5XMxoZgnb3iPwwxA5MY:6ouFAuB9AuMyLSglMYdCMxoiboU

Malware Config

Signatures

  • AgentTesla

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

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 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 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1568
    • C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Users\Admin\AppData\Roaming\wordd.exe
        "C:\Users\Admin\AppData\Roaming\wordd.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:2868
      • C:\Users\Admin\AppData\Roaming\excell.exe
        "C:\Users\Admin\AppData\Roaming\excell.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4128
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4428
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:2164
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
        3⤵
          PID:4000
        • 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:4872
          • 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:768
        • 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:1176
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
          2⤵
            PID:4920
          • 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:4740
            • 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:2240
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
            2⤵
              PID:4556
          • C:\Users\Admin\AppData\Roaming\avast\avast.exe
            C:\Users\Admin\AppData\Roaming\avast\avast.exe
            1⤵
            • Executes dropped EXE
            PID:4284

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\docfre20230925.exe.log

            Filesize

            226B

            MD5

            916851e072fbabc4796d8916c5131092

            SHA1

            d48a602229a690c512d5fdaf4c8d77547a88e7a2

            SHA256

            7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

            SHA512

            07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

          • 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\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\avast\avast.exe

            Filesize

            621KB

            MD5

            ed9d91fe584d5109d4067734ac452753

            SHA1

            c277e57866833509d94787fc6f4d634a2714825d

            SHA256

            3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

            SHA512

            a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

            Filesize

            125KB

            MD5

            43ec0396a28534662958bcc38c56741b

            SHA1

            1a4abf29943cc17f8e9ee53ee8eefcb7de97f0f6

            SHA256

            6a9cfd26ef1b8bdf0c0027a796712759c60aae96849b7cc0fe375d9e27b714c5

            SHA512

            e67614bdc4a3b143d1440e15bbe45364044941a85fdf1e2cf8d212c6d24b560021092565d33385a0150b727f37de52605e49d111d0d45707454352230291e262

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

            Filesize

            125KB

            MD5

            43ec0396a28534662958bcc38c56741b

            SHA1

            1a4abf29943cc17f8e9ee53ee8eefcb7de97f0f6

            SHA256

            6a9cfd26ef1b8bdf0c0027a796712759c60aae96849b7cc0fe375d9e27b714c5

            SHA512

            e67614bdc4a3b143d1440e15bbe45364044941a85fdf1e2cf8d212c6d24b560021092565d33385a0150b727f37de52605e49d111d0d45707454352230291e262

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

            Filesize

            125KB

            MD5

            43ec0396a28534662958bcc38c56741b

            SHA1

            1a4abf29943cc17f8e9ee53ee8eefcb7de97f0f6

            SHA256

            6a9cfd26ef1b8bdf0c0027a796712759c60aae96849b7cc0fe375d9e27b714c5

            SHA512

            e67614bdc4a3b143d1440e15bbe45364044941a85fdf1e2cf8d212c6d24b560021092565d33385a0150b727f37de52605e49d111d0d45707454352230291e262

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

            Filesize

            167KB

            MD5

            d91ed5276218ac3813cb02649798bf1d

            SHA1

            f6fe0b97d345b27801d93f4fc63a540a3e87df61

            SHA256

            67ab5e2cc0beffd93acfe9597fb67a194945370f7315570a2873427b32d7a5bd

            SHA512

            5b0d220a2d408a8e06ca5b0ce8bb6b2f8d9a24885e04fd1278a4ce3350bcbbd6378b96841053928e40ecbd89cc405aa9eff235fba028b37347547cfa74b6358a

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

            Filesize

            167KB

            MD5

            d91ed5276218ac3813cb02649798bf1d

            SHA1

            f6fe0b97d345b27801d93f4fc63a540a3e87df61

            SHA256

            67ab5e2cc0beffd93acfe9597fb67a194945370f7315570a2873427b32d7a5bd

            SHA512

            5b0d220a2d408a8e06ca5b0ce8bb6b2f8d9a24885e04fd1278a4ce3350bcbbd6378b96841053928e40ecbd89cc405aa9eff235fba028b37347547cfa74b6358a

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

            Filesize

            167KB

            MD5

            d91ed5276218ac3813cb02649798bf1d

            SHA1

            f6fe0b97d345b27801d93f4fc63a540a3e87df61

            SHA256

            67ab5e2cc0beffd93acfe9597fb67a194945370f7315570a2873427b32d7a5bd

            SHA512

            5b0d220a2d408a8e06ca5b0ce8bb6b2f8d9a24885e04fd1278a4ce3350bcbbd6378b96841053928e40ecbd89cc405aa9eff235fba028b37347547cfa74b6358a

          • memory/1568-51-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/1568-6-0x0000000005A90000-0x0000000005BC8000-memory.dmp

            Filesize

            1.2MB

          • memory/1568-1-0x0000000000CF0000-0x0000000000E16000-memory.dmp

            Filesize

            1.1MB

          • memory/1568-2-0x0000000005D50000-0x00000000062F4000-memory.dmp

            Filesize

            5.6MB

          • memory/1568-3-0x0000000005790000-0x00000000057A0000-memory.dmp

            Filesize

            64KB

          • memory/1568-0-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/1568-4-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/1568-5-0x0000000005790000-0x00000000057A0000-memory.dmp

            Filesize

            64KB

          • memory/2092-7-0x0000000000400000-0x0000000000452000-memory.dmp

            Filesize

            328KB

          • memory/2092-9-0x00000000029A0000-0x00000000029A8000-memory.dmp

            Filesize

            32KB

          • memory/2092-49-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/2092-11-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/2164-78-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2164-81-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/2164-86-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/2868-50-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/2868-53-0x0000000004F90000-0x0000000004FF6000-memory.dmp

            Filesize

            408KB

          • memory/2868-70-0x0000000006A00000-0x0000000006A0A000-memory.dmp

            Filesize

            40KB

          • memory/2868-75-0x0000000004F10000-0x0000000004F20000-memory.dmp

            Filesize

            64KB

          • memory/2868-48-0x00000000006B0000-0x00000000006E0000-memory.dmp

            Filesize

            192KB

          • memory/2868-71-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/4128-59-0x0000000006190000-0x0000000006352000-memory.dmp

            Filesize

            1.8MB

          • memory/4128-55-0x00000000050F0000-0x0000000005100000-memory.dmp

            Filesize

            64KB

          • memory/4128-47-0x00000000003B0000-0x00000000003D4000-memory.dmp

            Filesize

            144KB

          • memory/4128-73-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/4128-74-0x00000000050F0000-0x0000000005100000-memory.dmp

            Filesize

            64KB

          • memory/4128-58-0x0000000005F70000-0x0000000005FC0000-memory.dmp

            Filesize

            320KB

          • memory/4128-76-0x00000000050F0000-0x0000000005100000-memory.dmp

            Filesize

            64KB

          • memory/4128-85-0x00000000050F0000-0x0000000005100000-memory.dmp

            Filesize

            64KB

          • memory/4128-54-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/4128-60-0x0000000006060000-0x00000000060F2000-memory.dmp

            Filesize

            584KB

          • memory/4128-52-0x0000000004D60000-0x0000000004DFC000-memory.dmp

            Filesize

            624KB

          • memory/4284-89-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/4428-82-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/4428-77-0x00000000051A0000-0x00000000051CC000-memory.dmp

            Filesize

            176KB

          • memory/4428-33-0x0000000000320000-0x00000000003C2000-memory.dmp

            Filesize

            648KB

          • memory/4428-46-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB

          • memory/4428-72-0x0000000074840000-0x0000000074FF0000-memory.dmp

            Filesize

            7.7MB