General

  • Target

    BO353672UH.exe

  • Size

    486KB

  • Sample

    230328-j8er4ahg83

  • MD5

    88bb26d6b123f29679fcdad414a517c4

  • SHA1

    da3743a6e2fbf39ee52694a6dcc5bb14ee899249

  • SHA256

    db8531844df91c21008a7e9491568ac304846137a4ba3c30f23f91f7c058cc36

  • SHA512

    da911c95e5530e7ea758e7a895313e4b8f9695a273951697873795f658afa9c702a8cdc84ebae1a0c6330e4c40dcea02bbb39d211f4242baaab48b3b1ae7b7c5

  • SSDEEP

    6144:6QLFhr+DpuPJFjJYILWt37NncdDLL9low1jw5Es6zBUh9qBCiSPqCpsV0MtV3AK7:XF8wFjJnKl71cVL9louTgoZKK7

Malware Config

Extracted

Family

remcos

Botnet

CASH

C2

194.5.98.133:1978

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-BDLSVN

  • 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

      BO353672UH.exe

    • Size

      486KB

    • MD5

      88bb26d6b123f29679fcdad414a517c4

    • SHA1

      da3743a6e2fbf39ee52694a6dcc5bb14ee899249

    • SHA256

      db8531844df91c21008a7e9491568ac304846137a4ba3c30f23f91f7c058cc36

    • SHA512

      da911c95e5530e7ea758e7a895313e4b8f9695a273951697873795f658afa9c702a8cdc84ebae1a0c6330e4c40dcea02bbb39d211f4242baaab48b3b1ae7b7c5

    • SSDEEP

      6144:6QLFhr+DpuPJFjJYILWt37NncdDLL9low1jw5Es6zBUh9qBCiSPqCpsV0MtV3AK7:XF8wFjJnKl71cVL9louTgoZKK7

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Remcos

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

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Loads dropped DLL

    • Checks installed software on the system

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Tasks