Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2024 02:16

General

  • Target

    UPS_CBIJ90511770131.exe

  • Size

    962KB

  • MD5

    89844adca9d975b9933cea1a576ada58

  • SHA1

    c08481b4cf49fcf2979b2c72213d31c064a760e3

  • SHA256

    f3d332df7696f05fa4c501050447a6b373adf048f1a0249cd03a5584110b40da

  • SHA512

    6c0b8a2d0298f02994fabd39dc2a1da491e7b84bdea55b59863c595db9aeb77b2190b6ce8091c2acb0d7c3078b858b390876a45f281072cc730dfd0a5b095b25

  • SSDEEP

    24576:+CfpCdeGe8+2+NE2HqIvU0BsnpCY3QeEz+9vmvGQJM:bFnepIsGskY3a+Zoe

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

yayabeloo.duckdns.org:6847

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-VPA6N9

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
    "C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2412
    • C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
      "C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    34c3885de0afa26f7bed361164513259

    SHA1

    f725d023d530545e5386799e43b2a7be7f1d9a44

    SHA256

    2e2d3b585c5cc261347a5775b3f1346cb1ef556787ac85c9a2b7c19809b6cfc6

    SHA512

    12462b106f5d34ba5ed1d28b26bf3a05cbd077597d274a9ac94218a1ac437a82ee75e33c2c4cb55a7d21c5a98f8346b53ec0c8d53e620fb85ab2895d3824bfe2

  • memory/2412-26-0x0000000074D70000-0x000000007545E000-memory.dmp

    Filesize

    6.9MB

  • memory/2412-1-0x0000000000B00000-0x0000000000BF6000-memory.dmp

    Filesize

    984KB

  • memory/2412-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/2412-3-0x0000000000410000-0x000000000042C000-memory.dmp

    Filesize

    112KB

  • memory/2412-4-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

    Filesize

    4KB

  • memory/2412-5-0x0000000074D70000-0x000000007545E000-memory.dmp

    Filesize

    6.9MB

  • memory/2412-6-0x0000000005FA0000-0x0000000006062000-memory.dmp

    Filesize

    776KB

  • memory/2412-2-0x0000000074D70000-0x000000007545E000-memory.dmp

    Filesize

    6.9MB

  • memory/2772-13-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-15-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-19-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-11-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-8-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-9-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-7-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-30-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2772-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-54-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2772-55-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB