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Resubmissions

02/05/2023, 11:37

230502-nrl73aah46 7

25/04/2023, 12:30

230425-ppgp8scb5v 10

General

  • Target

    DOCUMENT.exe

  • Size

    715KB

  • Sample

    230425-ppgp8scb5v

  • MD5

    6a4400b6d5ded18fff7c2f6886814d0a

  • SHA1

    dc41822acc8edf8d0e130321cbb53f5c1186075a

  • SHA256

    6ac986e8a1d186735ff4116474abb8de5da5cb51c3cc980bc21c37b4cdeb7b62

  • SHA512

    de2fbb159e3318d691040680a6995ac47cbb28428f5a3da80d04d677f7d6614b61f28881566fc5e48be3eb8f90a55d7cd5d1e13514ce9f6c9449db9ee659e5ff

  • SSDEEP

    12288:Gzt8QKGxDsV/VQyD5p0mwzO52MOCwRm+kg+QXLzlTT45P07dNVPv31mdbzf1BRCg:GzKQRxAJLwPm+3PX945INVPdmJf1BUTc

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

155.94.136.202:2404

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-2WTTNV

  • 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

      DOCUMENT.exe

    • Size

      715KB

    • MD5

      6a4400b6d5ded18fff7c2f6886814d0a

    • SHA1

      dc41822acc8edf8d0e130321cbb53f5c1186075a

    • SHA256

      6ac986e8a1d186735ff4116474abb8de5da5cb51c3cc980bc21c37b4cdeb7b62

    • SHA512

      de2fbb159e3318d691040680a6995ac47cbb28428f5a3da80d04d677f7d6614b61f28881566fc5e48be3eb8f90a55d7cd5d1e13514ce9f6c9449db9ee659e5ff

    • SSDEEP

      12288:Gzt8QKGxDsV/VQyD5p0mwzO52MOCwRm+kg+QXLzlTT45P07dNVPv31mdbzf1BRCg:GzKQRxAJLwPm+3PX945INVPdmJf1BUTc

    • 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 QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks