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General

  • Target

    Order Sheet#2084-0147.gz

  • Size

    726KB

  • Sample

    240513-xbk5hahc8y

  • MD5

    5a3ed29305c0d44c3f58f6d38a1976c0

  • SHA1

    46b82d94e9544eb32e1a1425fcdffea7748e3551

  • SHA256

    f66bd0b4d7f6adf63c3e83d355bcfbd75c02ad2fcd09df242e457683aeb46fa8

  • SHA512

    1e1f75b1190cd445225313ce0dd7d60df8982d1b9dfce2f8555be7e2b3d3cad5c3f26783a00103d1ef252a427db1ca6fa0bacb681f358a387843eef60335e35e

  • SSDEEP

    12288:EzxOop9J9PrSpCIZO8P21DTxtl3wJkgBCKWq/UmIHKpk2DxT8xTg5/M8XPZErHdA:yxOop9HSkIZ3QtKjU4pMcU8/ZyHUz

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.216.142:7232

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-PGR5EA

  • 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

      Order Sheet#2084-0147.bat

    • Size

      3.1MB

    • MD5

      6625a9ac66586e588f4786cdbfaf2ed8

    • SHA1

      33c6c2cfc8e71d8a6187d110666f9c0c2decff03

    • SHA256

      c2e16be582aa7399bdb7b89cf72ba0f9bbecd5a128ad73d26ca0981963f83f5f

    • SHA512

      7ba8791d78fc3e01b69755fbf3d2569fe59ad0efcc4a87af88aa8cef4dbaf7f1715b4567631fcc119f735966d4791e737ee045d7966b51426fdef365e43278e5

    • SSDEEP

      24576:IFHMJaK5lhd5XfcIrAnYMEjS5W+DaunmO+RCNJXCP+I:IFHMJau/51rAnzQ

    • Remcos

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

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks