Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-07-2024 06:40

General

  • Target

    DHL Shipment Document Waybill .exe

  • Size

    1.7MB

  • MD5

    658e8867a46096faafb9939ba1faeb1a

  • SHA1

    bfe077b029a1a6d4beeda154fa706f4ff0cfff82

  • SHA256

    589b172cac7eb931e013d04820f31d1e7f6b7d710d1155dbb64ebb6c2fa2826a

  • SHA512

    ead89fa50f5c499e04fccf187257ca634d6168de6a662fa139282e871447a361ca33fd94a96b152a9324af2bc532c9fa2045af945dd0a86a11909aeac770689b

  • SSDEEP

    24576:WR3njD6TaOQ5KJh7WXePuq5LktSbm5ktGn:qjD65Q5Kz7WXJq5Lkt6m/n

Malware Config

Extracted

Family

remcos

Botnet

Dollar Man

C2

178.23.190.118:52499

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-SJ9MVF

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Detected Nirsoft tools 9 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Shipment Document Waybill .exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Shipment Document Waybill .exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4164
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe"
      2⤵
        PID:3004
      • C:\Windows\System32\notepad.exe
        "C:\Windows\System32\notepad.exe"
        2⤵
          PID:2308
        • C:\Windows\System32\svchost.exe
          "C:\Windows\System32\svchost.exe"
          2⤵
            PID:552
          • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
            "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
            2⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:4300
            • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
              "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\fwriddtlwcimvrtujlvawlkbze"
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:2416
            • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
              "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pqwbevefkkarxxhyavqbhyxkhkpscy"
              3⤵
              • Accesses Microsoft Outlook accounts
              PID:4992
            • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
              "C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\asjufophyssehlvckgdvklrbqrhbvjdfk"
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3232
          • C:\Program Files (x86)\Windows Media Player\wmplayer.exe
            "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
            2⤵
              PID:5080

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\remcos\logs.dat

            Filesize

            144B

            MD5

            04512e6b2ee2ac7468968beefa67d16d

            SHA1

            b3a5f5437d3da35ee96ee91431337f202116c42c

            SHA256

            70079e76d2db0e3f389bbba98fbc9e06fefacb75f2a7041f3779b7cf65eb79ff

            SHA512

            e9d122d7dde1367652803d7187f3f22a0cbe6e98407dbb68e4173c00f6d6e60bb05fbe2271349209b23ee140a611e620935a4548428985c8afda789cd4e15f25

          • C:\Users\Admin\AppData\Local\Temp\fwriddtlwcimvrtujlvawlkbze

            Filesize

            4KB

            MD5

            982ebb238759653970e22ee9fad24470

            SHA1

            15fca6be8cc4a276c9f70a73f28c52c3b0eead15

            SHA256

            c8b9cad5602932ea51b923f39f4b2d9aedf1f4915880d89032ab6636acaf9bea

            SHA512

            c8777edf0dd3e72e0cf3bb89db2bc7856fed0eeca7199806fec341e9168899e3b700c73a6b2e7cb0e8ccc5523116d6ecfde5c9ebcc83288a162dd1b0ea78201b

          • memory/2416-32-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2416-20-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2416-27-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2416-29-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/2416-41-0x0000000000400000-0x0000000000478000-memory.dmp

            Filesize

            480KB

          • memory/3232-28-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/3232-31-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/3232-38-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/3232-34-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/3232-24-0x0000000000400000-0x0000000000424000-memory.dmp

            Filesize

            144KB

          • memory/4164-1-0x00007FF8CEFE3000-0x00007FF8CEFE5000-memory.dmp

            Filesize

            8KB

          • memory/4164-0-0x0000019124DE0000-0x0000019124E08000-memory.dmp

            Filesize

            160KB

          • memory/4164-13-0x00007FF8CEFE0000-0x00007FF8CFAA1000-memory.dmp

            Filesize

            10.8MB

          • memory/4164-3-0x000001913F3F0000-0x000001913F4C2000-memory.dmp

            Filesize

            840KB

          • memory/4164-2-0x00007FF8CEFE0000-0x00007FF8CFAA1000-memory.dmp

            Filesize

            10.8MB

          • memory/4300-43-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/4300-55-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-19-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-17-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-87-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-16-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-15-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-86-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-79-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-14-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-12-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-11-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-7-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-78-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-10-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-6-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-46-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/4300-47-0x0000000010000000-0x0000000010019000-memory.dmp

            Filesize

            100KB

          • memory/4300-48-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-5-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-53-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-54-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-71-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-4-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-62-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-63-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4300-70-0x0000000000400000-0x0000000000482000-memory.dmp

            Filesize

            520KB

          • memory/4992-22-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/4992-26-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/4992-33-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/4992-39-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB

          • memory/4992-30-0x0000000000400000-0x0000000000462000-memory.dmp

            Filesize

            392KB