Analysis

  • max time kernel
    71s
  • max time network
    110s
  • 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

    docgur20230925.exe

  • Size

    822KB

  • MD5

    7db30eacb2aafcd1c57d4cf6b314ca71

  • SHA1

    784c19294b0348258632cdacb23927063f0f7ad8

  • SHA256

    dfe21dcd3c319fbb88566950ad3cd104f0e76c50200687b8906975c9cdd5aee6

  • SHA512

    985bba196e18696cbe5cb06f03416f2f6b839ebdfd32ac9d4b316cbf32fa7231c5f0e6deeb84ab5271a156c35b5c04295b670dacbe8ef1b477586b0205e5baf5

  • SSDEEP

    12288:91FckahW3INm7sW2ndLQJfVDb0xPkh7g9tO01ehCt6+5wVZaNY:VcDh/m7sPdLQ9VH0xPu7g9n1z6+iuY

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.product-secured.com/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    2V8SHFwjad34@@##

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docgur20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\docgur20230925.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Local\Temp\docgur20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\docgur20230925.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3868
    • 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:1564
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        PID:1684
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
        3⤵
          PID:4228
        • 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:4460
          • 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:1368
        • 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:2692
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docgur20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
          2⤵
            PID:1332
          • 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:3904
            • 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:1612
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
            2⤵
              PID:3920
          • C:\Users\Admin\AppData\Roaming\avast\avast.exe
            C:\Users\Admin\AppData\Roaming\avast\avast.exe
            1⤵
            • Executes dropped EXE
            PID:1716

          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\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

          • memory/1564-25-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1564-23-0x0000000000CC0000-0x0000000000D62000-memory.dmp

            Filesize

            648KB

          • memory/1564-36-0x0000000005FB0000-0x0000000005FDC000-memory.dmp

            Filesize

            176KB

          • memory/1564-41-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1564-33-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1684-37-0x0000000000400000-0x0000000000418000-memory.dmp

            Filesize

            96KB

          • memory/1684-40-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1716-47-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1740-2-0x0000000005A60000-0x0000000006004000-memory.dmp

            Filesize

            5.6MB

          • memory/1740-3-0x00000000054A0000-0x00000000054B0000-memory.dmp

            Filesize

            64KB

          • memory/1740-24-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1740-4-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1740-5-0x00000000054A0000-0x00000000054B0000-memory.dmp

            Filesize

            64KB

          • memory/1740-1-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/1740-6-0x0000000005720000-0x0000000005800000-memory.dmp

            Filesize

            896KB

          • memory/1740-0-0x0000000000AF0000-0x0000000000BC2000-memory.dmp

            Filesize

            840KB

          • memory/3868-9-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/3868-34-0x0000000006BF0000-0x0000000006BFA000-memory.dmp

            Filesize

            40KB

          • memory/3868-35-0x0000000005560000-0x0000000005570000-memory.dmp

            Filesize

            64KB

          • memory/3868-32-0x0000000005560000-0x0000000005570000-memory.dmp

            Filesize

            64KB

          • memory/3868-31-0x00000000748F0000-0x00000000750A0000-memory.dmp

            Filesize

            7.7MB

          • memory/3868-30-0x0000000006820000-0x00000000068B2000-memory.dmp

            Filesize

            584KB

          • memory/3868-29-0x0000000006650000-0x0000000006812000-memory.dmp

            Filesize

            1.8MB

          • memory/3868-28-0x0000000006430000-0x0000000006480000-memory.dmp

            Filesize

            320KB

          • memory/3868-44-0x0000000005560000-0x0000000005570000-memory.dmp

            Filesize

            64KB

          • memory/3868-11-0x0000000005560000-0x0000000005570000-memory.dmp

            Filesize

            64KB

          • memory/3868-10-0x0000000005230000-0x00000000052CC000-memory.dmp

            Filesize

            624KB

          • memory/3868-7-0x0000000000400000-0x0000000000426000-memory.dmp

            Filesize

            152KB