Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-01-2025 04:51

General

  • Target

    ae5c7c5f680e962071211f744fac2af5ad9a508ffe60f4bd747e885f017fbeae.exe

  • Size

    1.1MB

  • MD5

    87b1f43499fb88d1971cf2eaf8409cf5

  • SHA1

    65013ee9162f40b51049c81f0d5ab8c7971f2ba8

  • SHA256

    ae5c7c5f680e962071211f744fac2af5ad9a508ffe60f4bd747e885f017fbeae

  • SHA512

    4c3e45ddcba1fc08fd250ba37b02cf50ad0259cea0c1177955de5346838fae30ddd16a37abf5c4d3a90bd4ed9f083debb860e1147c1dbe3564846e21e817c28c

  • SSDEEP

    24576:8zcj2wPT+b1WEHsOzj4j85M1hUQDAxzJX4cJeZ:4Av411sOzj4jGM1aK4FX

Malware Config

Extracted

Family

remcos

Botnet

wire 18/12

C2

teebro1800.dynamic-dns.net:2195

teewire.ydns.eu:2195

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-X4SWKO

  • 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.

  • Remcos family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae5c7c5f680e962071211f744fac2af5ad9a508ffe60f4bd747e885f017fbeae.exe
    "C:\Users\Admin\AppData\Local\Temp\ae5c7c5f680e962071211f744fac2af5ad9a508ffe60f4bd747e885f017fbeae.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 35 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "chrome" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chrome.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 35
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2576
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "chrome" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chrome.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2912
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 42 > nul && copy "C:\Users\Admin\AppData\Local\Temp\ae5c7c5f680e962071211f744fac2af5ad9a508ffe60f4bd747e885f017fbeae.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chrome.exe" && ping 127.0.0.1 -n 42 > nul && "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chrome.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1560
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 42
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2272
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 42
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2944
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chrome.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chrome.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:568
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
          4⤵
            PID:2380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chrome.exe

      Filesize

      1.1MB

      MD5

      87b1f43499fb88d1971cf2eaf8409cf5

      SHA1

      65013ee9162f40b51049c81f0d5ab8c7971f2ba8

      SHA256

      ae5c7c5f680e962071211f744fac2af5ad9a508ffe60f4bd747e885f017fbeae

      SHA512

      4c3e45ddcba1fc08fd250ba37b02cf50ad0259cea0c1177955de5346838fae30ddd16a37abf5c4d3a90bd4ed9f083debb860e1147c1dbe3564846e21e817c28c

    • memory/568-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

      Filesize

      24KB

    • memory/568-18-0x0000000000690000-0x00000000006AA000-memory.dmp

      Filesize

      104KB

    • memory/568-17-0x0000000000A30000-0x0000000000B46000-memory.dmp

      Filesize

      1.1MB

    • memory/2380-32-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-34-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-22-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-26-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-28-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-30-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-25-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-20-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2380-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2396-1-0x0000000000280000-0x0000000000396000-memory.dmp

      Filesize

      1.1MB

    • memory/2396-5-0x0000000073F20000-0x000000007460E000-memory.dmp

      Filesize

      6.9MB

    • memory/2396-0-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

      Filesize

      4KB

    • memory/2396-3-0x0000000000550000-0x0000000000592000-memory.dmp

      Filesize

      264KB

    • memory/2396-2-0x0000000073F20000-0x000000007460E000-memory.dmp

      Filesize

      6.9MB

    • memory/2396-4-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

      Filesize

      4KB

    • memory/2396-6-0x0000000073F20000-0x000000007460E000-memory.dmp

      Filesize

      6.9MB