Analysis

  • max time kernel
    156s
  • max time network
    133s
  • 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

    docfra20230925.exe

  • Size

    1.3MB

  • MD5

    5d86018377d9cf83e6e2c08fd9fd60d3

  • SHA1

    3ae1897f221aa5893f8aff0bfd79666f8ba2236f

  • SHA256

    1c1a28fdaac92ef8a7f6032dd94cdc56a690fc78c99910a5b78709435ea992f3

  • SHA512

    d2ea45f5f6aa1561468ff5657d6b9cfc1fe3168621dde2706423cf26c12a8c5a0fa920275bc2a7294d341e39da71493975b0c4632701d4629966b1a058b52fb7

  • SSDEEP

    24576:YkzJBUqX3qbkN6s2P2VElQJyNmXy76p7ZUgSb2H8KZ/L2zZnJf+MCFL3:YkNBH16sVOy0NmXIgSudT2teL

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
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 3 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 3 IoCs
  • Looks up external IP address via web service 1 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 2 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Users\Admin\AppData\Roaming\frankdan.exe
        "C:\Users\Admin\AppData\Roaming\frankdan.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:2184
    • 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:1088
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:1728
      • 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:2108
        • 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:1508
          • 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:1952
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
          3⤵
            PID:1932
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:2900
          • 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:2924
            • 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:1928
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docfra20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            2⤵
              PID:2968
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {9A3A9A73-23AB-4698-9B43-26345F6D0B86} S-1-5-21-607259312-1573743425-2763420908-1000:NGTQGRML\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:1452
            • C:\Users\Admin\AppData\Roaming\avast\avast.exe
              C:\Users\Admin\AppData\Roaming\avast\avast.exe
              2⤵
              • Executes dropped EXE
              PID:816

          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\frankdan.exe

            Filesize

            247KB

            MD5

            e254aed552568e13df13e204adcb8011

            SHA1

            18deaf67ac2a3ae2be3d3e620f650cb6edcba92a

            SHA256

            23b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5

            SHA512

            f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f

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

            Filesize

            247KB

            MD5

            e254aed552568e13df13e204adcb8011

            SHA1

            18deaf67ac2a3ae2be3d3e620f650cb6edcba92a

            SHA256

            23b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5

            SHA512

            f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f

          • \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\frankdan.exe

            Filesize

            247KB

            MD5

            e254aed552568e13df13e204adcb8011

            SHA1

            18deaf67ac2a3ae2be3d3e620f650cb6edcba92a

            SHA256

            23b22ca7ca4272afba9114cc3da4316c38c2407574cb1649aa549c9a7e792ae5

            SHA512

            f89aa1487f6c1c2e9a3b76de8137b56da65c1d2df6f40439c0da4726478a11fbea83f7c3ad0530e12a1fb0cd808062d8f2a915879c0d5e210f3340138ace8c3f

          • memory/816-80-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/816-81-0x00000000000C0000-0x0000000000162000-memory.dmp

            Filesize

            648KB

          • memory/816-82-0x0000000004A20000-0x0000000004A60000-memory.dmp

            Filesize

            256KB

          • memory/1088-53-0x0000000000390000-0x00000000003BC000-memory.dmp

            Filesize

            176KB

          • memory/1088-42-0x0000000000A60000-0x0000000000B02000-memory.dmp

            Filesize

            648KB

          • memory/1088-43-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1088-44-0x0000000004B10000-0x0000000004B50000-memory.dmp

            Filesize

            256KB

          • memory/1088-50-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1088-51-0x0000000004B10000-0x0000000004B50000-memory.dmp

            Filesize

            256KB

          • memory/1088-68-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1720-46-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1720-0-0x0000000000230000-0x0000000000380000-memory.dmp

            Filesize

            1.3MB

          • memory/1720-1-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1720-2-0x0000000000600000-0x0000000000640000-memory.dmp

            Filesize

            256KB

          • memory/1720-3-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1720-4-0x0000000000600000-0x0000000000640000-memory.dmp

            Filesize

            256KB

          • memory/1720-5-0x0000000005010000-0x0000000005170000-memory.dmp

            Filesize

            1.4MB

          • memory/1728-74-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1728-75-0x0000000004970000-0x00000000049B0000-memory.dmp

            Filesize

            256KB

          • memory/1728-71-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1728-65-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1728-77-0x0000000004970000-0x00000000049B0000-memory.dmp

            Filesize

            256KB

          • memory/1728-63-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/1728-76-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/1728-69-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1728-55-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1728-57-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1728-59-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1728-61-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/2184-52-0x0000000004890000-0x00000000048D0000-memory.dmp

            Filesize

            256KB

          • memory/2184-35-0x0000000000800000-0x0000000000844000-memory.dmp

            Filesize

            272KB

          • memory/2184-36-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/2184-49-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/2672-10-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-7-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-8-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-6-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-45-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB

          • memory/2672-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/2672-15-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-21-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-24-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-17-0x0000000000080000-0x00000000000E6000-memory.dmp

            Filesize

            408KB

          • memory/2672-25-0x00000000003E0000-0x00000000003E8000-memory.dmp

            Filesize

            32KB

          • memory/2672-26-0x00000000744A0000-0x0000000074B8E000-memory.dmp

            Filesize

            6.9MB