Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-10-2022 13:05

General

  • Target

    2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe

  • Size

    1.0MB

  • MD5

    fd6f72c5d462fe0430e91f610747f0b7

  • SHA1

    628203820d5c783b2985c8a653fc5fc3144a1a39

  • SHA256

    2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6

  • SHA512

    98fb7a016c8ebeca9a23c6cd98d444c773eb2f71ec3b402458c433bbd5b5a32e46e0f6a149acc670811d8fb669786b8ff726040769dc841b144282deb05e3ae6

  • SSDEEP

    12288:7ciYxpcVgA05HSleVr4DLCMrVuEPx940LsM8wFZI0jf6Xy6tynhvsLx8qszEEW:ccWylAoPPb40j8gI0m1yhEL/N

Malware Config

Extracted

Family

remcos

Botnet

NEW REM STUB

C2

valvesco.duckdns.org:5050

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-48V73L

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe
    "C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe
      "C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1060
      • C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe
        C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\skjjvgextkql"
        3⤵
          PID:1304
        • C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe
          C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\skjjvgextkql"
          3⤵
            PID:1168
          • C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe
            C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\skjjvgextkql"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:768
          • C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe
            C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\ueocwzpqgsiqipfc"
            3⤵
            • Accesses Microsoft Outlook accounts
            PID:320
          • C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe
            C:\Users\Admin\AppData\Local\Temp\2068d6dc1ef76f480e3fefd9fb239555d5f136c6c94d35232c273414ef4531f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\fgunwrhsuaavkvbgapx"
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1700

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      1
      T1081

      Collection

      Data from Local System

      1
      T1005

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\skjjvgextkql
        Filesize

        2B

        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • memory/320-90-0x0000000000400000-0x0000000000457000-memory.dmp
        Filesize

        348KB

      • memory/320-84-0x0000000000400000-0x0000000000457000-memory.dmp
        Filesize

        348KB

      • memory/320-78-0x0000000000455238-mapping.dmp
      • memory/768-77-0x0000000000476274-mapping.dmp
      • memory/768-88-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/768-85-0x0000000000400000-0x0000000000478000-memory.dmp
        Filesize

        480KB

      • memory/1060-61-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-60-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-65-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-66-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-67-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-68-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-70-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-72-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-73-0x00000000004327A4-mapping.dmp
      • memory/1060-76-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-91-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-63-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1060-83-0x0000000000400000-0x000000000047F000-memory.dmp
        Filesize

        508KB

      • memory/1700-79-0x0000000000422206-mapping.dmp
      • memory/1700-86-0x0000000000400000-0x0000000000424000-memory.dmp
        Filesize

        144KB

      • memory/1700-87-0x0000000000400000-0x0000000000424000-memory.dmp
        Filesize

        144KB

      • memory/1712-59-0x0000000007FE0000-0x000000000805C000-memory.dmp
        Filesize

        496KB

      • memory/1712-58-0x0000000007EC0000-0x0000000007F92000-memory.dmp
        Filesize

        840KB

      • memory/1712-57-0x0000000000970000-0x000000000097C000-memory.dmp
        Filesize

        48KB

      • memory/1712-56-0x0000000000960000-0x0000000000976000-memory.dmp
        Filesize

        88KB

      • memory/1712-55-0x00000000762B1000-0x00000000762B3000-memory.dmp
        Filesize

        8KB

      • memory/1712-54-0x0000000000CC0000-0x0000000000DD0000-memory.dmp
        Filesize

        1.1MB