Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-09-2024 08:46

General

  • Target

    72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe

  • Size

    2.6MB

  • MD5

    515db4f6275767476e5694acecf9cbeb

  • SHA1

    3d4e8845de05195402f8e3e13b8f6f7833868927

  • SHA256

    72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281

  • SHA512

    1c3a63aa9dcfec13b23017cb536a4a5f64e647f8a0f67c6f295684fedaecc5b452f3efb88204346eda72f376cd6d72e9479776b1ff4f9aa070bc8830478fec20

  • SSDEEP

    49152:b/RbkzSYl+aFUUhf3LIc3VEarMl7mmpkaRAYY+a357+NRsVS2pVMSYP3eSbkGBD0:b7oLX3VEarqm6kqm5

Malware Config

Extracted

Family

remcos

Botnet

ZILVESTRE

C2

ximercxjs.con-ip.com:1667

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-N245QQ

  • 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.

  • Adds Run key to start application 2 TTPs 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe
    "C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe
      "C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2316

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    74847afef439644a3d43bb4582af0856

    SHA1

    6ec742de6c682edfb6590a66f04afb97e002d182

    SHA256

    828d3918b5ff511ff79ee89f70ead9d99b0d8d7f9400544bec83966084ea8395

    SHA512

    e6d917444bdb128c85dcc43c54bec54f06cda7dc0b5ac28a8a431e5dd45a862d764c58f88a5cf69cec8fd5d54d1571970160cda745fc0e50df60c770fb456c85

  • memory/2316-39-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-58-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-19-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-20-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-15-0x0000000000400000-0x000000000069A000-memory.dmp

    Filesize

    2.6MB

  • memory/2316-14-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-57-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-16-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-10-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2316-52-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-6-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-50-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-45-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-44-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-26-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-25-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-31-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-32-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2316-38-0x00000000001C0000-0x0000000000242000-memory.dmp

    Filesize

    520KB

  • memory/2532-1-0x000000000040A000-0x0000000000423000-memory.dmp

    Filesize

    100KB

  • memory/2532-0-0x0000000000400000-0x000000000069A000-memory.dmp

    Filesize

    2.6MB

  • memory/2532-2-0x0000000000400000-0x000000000069A000-memory.dmp

    Filesize

    2.6MB

  • memory/2532-12-0x0000000000400000-0x000000000069A000-memory.dmp

    Filesize

    2.6MB

  • memory/2532-4-0x0000000000400000-0x000000000069A000-memory.dmp

    Filesize

    2.6MB

  • memory/2532-11-0x0000000000400000-0x000000000069A000-memory.dmp

    Filesize

    2.6MB

  • memory/2532-5-0x0000000000400000-0x000000000069A000-memory.dmp

    Filesize

    2.6MB