Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2024 18:27

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:3660
    • 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:1820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    009e8bedf4ba15f3095f247e39beab22

    SHA1

    1f74843939a7e046165e8e74c38d7abc57e01003

    SHA256

    f9bd56cb089f09e6c58bb6b9a12e1db2492d277239baf2643e0a89bf6659a51d

    SHA512

    9424a6fcc50661adff883e7bd3a971afce8ba0b7fc61e112035c61088655b6754a67018c64bdc0d15b8a5d25c567ff174a3c6cf7d17dbd95a5af2e65c003bc8e

  • memory/1820-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-19-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-56-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-18-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-11-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-12-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-14-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-15-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-57-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1820-23-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3660-7-0x0000000005240000-0x000000000525C000-memory.dmp

    Filesize

    112KB

  • memory/3660-10-0x0000000007B70000-0x0000000007C32000-memory.dmp

    Filesize

    776KB

  • memory/3660-2-0x0000000005670000-0x0000000005C14000-memory.dmp

    Filesize

    5.6MB

  • memory/3660-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/3660-9-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/3660-1-0x0000000000540000-0x0000000000636000-memory.dmp

    Filesize

    984KB

  • memory/3660-8-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/3660-20-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/3660-6-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/3660-5-0x00000000050A0000-0x00000000050AA000-memory.dmp

    Filesize

    40KB

  • memory/3660-4-0x0000000005160000-0x00000000051FC000-memory.dmp

    Filesize

    624KB

  • memory/3660-3-0x0000000004FE0000-0x0000000005072000-memory.dmp

    Filesize

    584KB