Analysis

  • max time kernel
    137s
  • max time network
    124s
  • 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

    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 10 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 4 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 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\docfre20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\docfre20230925.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2140
      • 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:2008
      • 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 behavior: SetClipboardViewer
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:2408
    • 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:2712
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        PID:1852
      • 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:1092
        • 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:2808
          • 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:1956
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
          3⤵
            PID:1128
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:2952
          • 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:1748
            • 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:1804
          • 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:2252
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {6EBD1F98-40D4-42D7-8057-7204A7735B6D} S-1-5-21-686452656-3203474025-4140627569-1000:UUVOHKNL\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2508
            • C:\Users\Admin\AppData\Roaming\avast\avast.exe
              C:\Users\Admin\AppData\Roaming\avast\avast.exe
              2⤵
              • Executes dropped EXE
              PID:2300

          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\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\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

          • \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

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

            Filesize

            125KB

            MD5

            43ec0396a28534662958bcc38c56741b

            SHA1

            1a4abf29943cc17f8e9ee53ee8eefcb7de97f0f6

            SHA256

            6a9cfd26ef1b8bdf0c0027a796712759c60aae96849b7cc0fe375d9e27b714c5

            SHA512

            e67614bdc4a3b143d1440e15bbe45364044941a85fdf1e2cf8d212c6d24b560021092565d33385a0150b727f37de52605e49d111d0d45707454352230291e262

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

            Filesize

            167KB

            MD5

            d91ed5276218ac3813cb02649798bf1d

            SHA1

            f6fe0b97d345b27801d93f4fc63a540a3e87df61

            SHA256

            67ab5e2cc0beffd93acfe9597fb67a194945370f7315570a2873427b32d7a5bd

            SHA512

            5b0d220a2d408a8e06ca5b0ce8bb6b2f8d9a24885e04fd1278a4ce3350bcbbd6378b96841053928e40ecbd89cc405aa9eff235fba028b37347547cfa74b6358a

          • memory/1852-70-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1852-91-0x0000000004A90000-0x0000000004AD0000-memory.dmp

            Filesize

            256KB

          • memory/1852-79-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1852-85-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1852-86-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/1852-87-0x0000000004A90000-0x0000000004AD0000-memory.dmp

            Filesize

            256KB

          • memory/1852-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/1852-72-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1852-74-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1852-76-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1852-90-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/1852-83-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2008-60-0x00000000008E0000-0x0000000000920000-memory.dmp

            Filesize

            256KB

          • memory/2008-61-0x00000000008E0000-0x0000000000920000-memory.dmp

            Filesize

            256KB

          • memory/2008-92-0x00000000008E0000-0x0000000000920000-memory.dmp

            Filesize

            256KB

          • memory/2008-50-0x0000000001150000-0x0000000001174000-memory.dmp

            Filesize

            144KB

          • memory/2008-51-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2008-93-0x00000000008E0000-0x0000000000920000-memory.dmp

            Filesize

            256KB

          • memory/2008-58-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2140-24-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2140-23-0x0000000000250000-0x0000000000258000-memory.dmp

            Filesize

            32KB

          • memory/2140-6-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2140-7-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2140-8-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2140-9-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2140-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2140-49-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2140-13-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2140-14-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2140-19-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2140-22-0x0000000000080000-0x00000000000D2000-memory.dmp

            Filesize

            328KB

          • memory/2148-4-0x00000000049E0000-0x0000000004A20000-memory.dmp

            Filesize

            256KB

          • memory/2148-1-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2148-0-0x0000000000930000-0x0000000000A56000-memory.dmp

            Filesize

            1.1MB

          • memory/2148-2-0x00000000049E0000-0x0000000004A20000-memory.dmp

            Filesize

            256KB

          • memory/2148-3-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2148-5-0x0000000004D00000-0x0000000004E38000-memory.dmp

            Filesize

            1.2MB

          • memory/2148-54-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2300-100-0x0000000004980000-0x00000000049C0000-memory.dmp

            Filesize

            256KB

          • memory/2300-99-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2300-98-0x0000000004980000-0x00000000049C0000-memory.dmp

            Filesize

            256KB

          • memory/2300-97-0x0000000000BD0000-0x0000000000C72000-memory.dmp

            Filesize

            648KB

          • memory/2300-96-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2408-45-0x0000000000A70000-0x0000000000AA0000-memory.dmp

            Filesize

            192KB

          • memory/2408-57-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2408-42-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2712-53-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2712-34-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2712-68-0x00000000008E0000-0x000000000090C000-memory.dmp

            Filesize

            176KB

          • memory/2712-52-0x0000000004040000-0x0000000004080000-memory.dmp

            Filesize

            256KB

          • memory/2712-82-0x0000000073CE0000-0x00000000743CE000-memory.dmp

            Filesize

            6.9MB

          • memory/2712-32-0x0000000000910000-0x00000000009B2000-memory.dmp

            Filesize

            648KB

          • memory/2712-59-0x0000000004040000-0x0000000004080000-memory.dmp

            Filesize

            256KB