Analysis

  • max time kernel
    151s
  • max time network
    158s
  • 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 5 IoCs
  • Executes dropped EXE 6 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 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 2 IoCs
  • Suspicious behavior: SetClipboardViewer 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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:2472
    • 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:2892
      • 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:2532
    • 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:2580
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:576
      • 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:1108
        • 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:1780
      • 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:984
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
          3⤵
            PID:2796
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:2828
          • 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:2872
            • 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:2840
              • 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:1632
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {99CD49A8-4750-43A3-944C-6693DDC12605} S-1-5-21-3849525425-30183055-657688904-1000:KGPMNUDG\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:284
            • C:\Users\Admin\AppData\Roaming\avast\avast.exe
              C:\Users\Admin\AppData\Roaming\avast\avast.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1496
              • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                3⤵
                • Executes dropped EXE
                • Suspicious behavior: SetClipboardViewer
                PID:1732
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
                3⤵
                  PID:988
                • 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⤵
                    PID:640
                    • 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:1920
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\avast\avast.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                    3⤵
                      PID:1824
                  • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    2⤵
                    • Executes dropped EXE
                    PID:1900

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                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\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/576-71-0x00000000048A0000-0x00000000048E0000-memory.dmp

                  Filesize

                  256KB

                • memory/576-72-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/576-51-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/576-53-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/576-73-0x00000000048A0000-0x00000000048E0000-memory.dmp

                  Filesize

                  256KB

                • memory/576-55-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/576-61-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/576-70-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/576-67-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/576-64-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/576-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/576-57-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1496-77-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1496-95-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1496-76-0x00000000000B0000-0x0000000000152000-memory.dmp

                  Filesize

                  648KB

                • memory/1496-78-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1732-85-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1732-94-0x0000000000080000-0x0000000000098000-memory.dmp

                  Filesize

                  96KB

                • memory/1732-90-0x0000000000080000-0x0000000000098000-memory.dmp

                  Filesize

                  96KB

                • memory/1732-98-0x0000000000080000-0x0000000000098000-memory.dmp

                  Filesize

                  96KB

                • memory/1732-101-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1732-99-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1732-100-0x0000000004650000-0x0000000004690000-memory.dmp

                  Filesize

                  256KB

                • memory/1900-105-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1900-104-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

                  Filesize

                  256KB

                • memory/1900-103-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1900-106-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

                  Filesize

                  256KB

                • memory/2472-1-0x0000000000A20000-0x0000000000B70000-memory.dmp

                  Filesize

                  1.3MB

                • memory/2472-2-0x0000000002160000-0x00000000021A0000-memory.dmp

                  Filesize

                  256KB

                • memory/2472-4-0x0000000002160000-0x00000000021A0000-memory.dmp

                  Filesize

                  256KB

                • memory/2472-5-0x0000000004FF0000-0x0000000005150000-memory.dmp

                  Filesize

                  1.4MB

                • memory/2472-43-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2472-0-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2472-3-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2532-37-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2532-36-0x0000000000E10000-0x0000000000E54000-memory.dmp

                  Filesize

                  272KB

                • memory/2532-44-0x0000000000310000-0x0000000000350000-memory.dmp

                  Filesize

                  256KB

                • memory/2532-45-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2532-48-0x0000000000310000-0x0000000000350000-memory.dmp

                  Filesize

                  256KB

                • memory/2580-49-0x0000000000980000-0x00000000009AC000-memory.dmp

                  Filesize

                  176KB

                • memory/2580-38-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2580-40-0x0000000001FA0000-0x0000000001FE0000-memory.dmp

                  Filesize

                  256KB

                • memory/2580-65-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2580-46-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2580-35-0x0000000000A80000-0x0000000000B22000-memory.dmp

                  Filesize

                  648KB

                • memory/2580-47-0x0000000001FA0000-0x0000000001FE0000-memory.dmp

                  Filesize

                  256KB

                • memory/2892-10-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2892-39-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2892-7-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2892-6-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2892-21-0x0000000074230000-0x000000007491E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2892-20-0x00000000002F0000-0x00000000002F8000-memory.dmp

                  Filesize

                  32KB

                • memory/2892-8-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2892-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2892-14-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2892-19-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB

                • memory/2892-17-0x0000000000400000-0x0000000000466000-memory.dmp

                  Filesize

                  408KB