Resubmissions

21-01-2025 11:18

250121-nef6aa1jfx 10

Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-01-2025 11:18

General

  • Target

    a33245a27c02bbb72bf66f6bf1c960affefa8ed2a096dc1d6faa6699fe81c48a.exe

  • Size

    1.9MB

  • MD5

    2121a055e132df9c2b62d3ad578faa85

  • SHA1

    60439cb5d41f2256eb54bbd1d84d8d04d78272ef

  • SHA256

    a33245a27c02bbb72bf66f6bf1c960affefa8ed2a096dc1d6faa6699fe81c48a

  • SHA512

    55039a343efd737a7488193f777ca0a44dc465f098e51241d8a0699478d72dda9f5eb8bb204e96cc81da14191475e1ff87132680ac4b5956cb1b85d06a4a6c71

  • SSDEEP

    24576:kDLnN/pjx71gWufN62I520/hjlB6iTzKF+iZpWSsZrKp0HqGmyejFyzXYVN4on59:kDLn7xSNudSrZpWLwG8bvn59

Malware Config

Extracted

Family

remcos

Version

4.9.3 Light

Botnet

RemoteHost

C2

127.0.0.1:2404

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-52SPIJ

  • 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
  • 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a33245a27c02bbb72bf66f6bf1c960affefa8ed2a096dc1d6faa6699fe81c48a.exe
    "C:\Users\Admin\AppData\Local\Temp\a33245a27c02bbb72bf66f6bf1c960affefa8ed2a096dc1d6faa6699fe81c48a.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1300
    • C:\Users\Admin\AppData\Local\Temp\a33245a27c02bbb72bf66f6bf1c960affefa8ed2a096dc1d6faa6699fe81c48a.exe
      "C:\Users\Admin\AppData\Local\Temp\a33245a27c02bbb72bf66f6bf1c960affefa8ed2a096dc1d6faa6699fe81c48a.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1300-1-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/1300-0-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/1300-4-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/1300-3-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/1300-9-0x00000000005BB000-0x00000000005C2000-memory.dmp

    Filesize

    28KB

  • memory/1300-8-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/1300-7-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/1300-2-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/2092-11-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-12-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/2092-10-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-13-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-15-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-14-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-5-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-16-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-17-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-18-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-19-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-20-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-21-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-22-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-23-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-24-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-25-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-26-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-27-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-28-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-29-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-30-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-31-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-32-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-33-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-34-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-35-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-36-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-37-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-38-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-39-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-40-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-41-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-42-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-43-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-44-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-45-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-46-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-47-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-48-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-49-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-50-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-51-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-52-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-53-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-54-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-55-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-56-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-57-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-58-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-59-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-60-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-61-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-62-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-63-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-64-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-65-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-66-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-67-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-68-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-69-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/2092-70-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB