General

  • Target

    753a9d435fdf6803ca970ba23d3dfe0d.bin

  • Size

    12KB

  • Sample

    241130-btnsfswjhw

  • MD5

    b3654d12ca9de06acb5e445cf2ce9ee0

  • SHA1

    c1b3a69eac7b85e342f8016db3cd0018b50b83d1

  • SHA256

    1e4e9e146859519cb79e73ba0fd928e42b8be7a8c7ebc18db9338c39c60a24da

  • SHA512

    8fcd0effd1572e06eea0fb55c6692bcf3afb502ec1413440d17efb25f3d44edf435bdec976d28643980d85e0f0ed701645260bd15f39715eae8160f86ba4be1b

  • SSDEEP

    384:Rl+VJj8aakdT3bwAL+OAoEaTNmHKSsXlnlqdp+1i:RMVJj8aak5nAoJTRVnlqdUI

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://pastebin.com/raw/Adv9gBHa

exe.dropper

https://pastebin.com/raw/Adv9gBHa

Extracted

Family

remcos

Botnet

NtPriv

C2

wins.coemprsasltda.pro:3000

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-3L7DW9

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      cdff410d32d5b177320f80eb8bc6be51de994bd11cc17e7013ae400e1947ca6f.vbs

    • Size

      1.9MB

    • MD5

      753a9d435fdf6803ca970ba23d3dfe0d

    • SHA1

      03aa37de89660b8d2fd9ef5aabc61a83a7f410c8

    • SHA256

      cdff410d32d5b177320f80eb8bc6be51de994bd11cc17e7013ae400e1947ca6f

    • SHA512

      426a53f1003bd48f4933266eecfeedfe74ea374a50b1b9ff2d969dc0333e4a9370ccb75640e08bcd0e93a3b2e9d0bbf60a5ed7fc117fef79e1f54f53c9a44c6a

    • SSDEEP

      192:dG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4GAG4l:XQb7SOE9Cm6wn

    • Remcos

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

    • Remcos family

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks