General

  • Target

    e3002686e84595d78c1fffef1f503e4adf4b5cd82ce43a439e6b58c3d8cefb09

  • Size

    903KB

  • Sample

    241121-lnemps1kgz

  • MD5

    eddbb1a71598188894a8f81e37bda0d8

  • SHA1

    25ac1a603974c1f4071ea1e05906fdf6e91018a5

  • SHA256

    e3002686e84595d78c1fffef1f503e4adf4b5cd82ce43a439e6b58c3d8cefb09

  • SHA512

    5e2386197e4b073f43f805a827c71fb52bb514102472ea219f349fb827d37a6cbc6179bf5a0e0cdd9e9656232f6b25ce2ae355224fa9f4a420d793e070b11b81

  • SSDEEP

    24576:fPyk7le/GVpfsLU/9Fl5e8UYD3tgbo9ES4jKOn:fPyOo/GV1jFL1tjz4jR

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

204.10.160.239:9682

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-6D4L9S

  • 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

Targets

    • Target

      Payment Advice_Chase Bank.pdf.bat

    • Size

      997KB

    • MD5

      e9abe92824035cd098547ef4e5b55b66

    • SHA1

      627f264d13e0e0b7bdc3fccde16e1ef295605bce

    • SHA256

      b068030645860377782553a0afc3375824b11c827120888c3792b794de864232

    • SHA512

      ec1229a55357071954f1f935515d0a2b0b260d2be1c33a37e22b1ba0f962dd99d65d5a5b1f5b3c3fcbccb6757bd668ad1567b9b6cc05388871ebd268024490f0

    • SSDEEP

      12288:253wtfRzxWWoG2eNY27HpUe/dhWIp6JVbTp4vfpAtk5FabwLYGwD3Mcg34La+FYK:25MpzxWJRar/dkIIVbTpst2wT68j34Go

    • Remcos

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

    • Remcos family

    • Detected Nirsoft tools

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

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks