Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 10 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:2344
    • 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:2988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    76b87b8766e8e8771d48d77ead4bf401

    SHA1

    88c62384317d729bc25a917a0a19ff8240e1e809

    SHA256

    9a1b658facdd3708d7d11f500a0045992e8cd1422ad143e4cc5348495a4a4965

    SHA512

    8d1495c2cea4d201b033d96345989dba113b8b5b60e27b7c04dbc7916573ae63b58ba13cb304f352c9577040e4a6c5ff8d904e1969d58162eb441697144256f0

  • memory/2344-6-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/2344-2-0x0000000005540000-0x0000000005AE4000-memory.dmp

    Filesize

    5.6MB

  • memory/2344-3-0x0000000005030000-0x00000000050C2000-memory.dmp

    Filesize

    584KB

  • memory/2344-4-0x0000000005170000-0x000000000520C000-memory.dmp

    Filesize

    624KB

  • memory/2344-5-0x00000000050F0000-0x00000000050FA000-memory.dmp

    Filesize

    40KB

  • memory/2344-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

    Filesize

    4KB

  • memory/2344-7-0x0000000005500000-0x000000000551C000-memory.dmp

    Filesize

    112KB

  • memory/2344-8-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

    Filesize

    4KB

  • memory/2344-9-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/2344-10-0x0000000007B80000-0x0000000007C42000-memory.dmp

    Filesize

    776KB

  • memory/2344-1-0x0000000000570000-0x0000000000666000-memory.dmp

    Filesize

    984KB

  • memory/2344-20-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/2988-19-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-18-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-15-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-11-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-23-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-13-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-12-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-34-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-50-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2988-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB