Resubmissions

21-01-2025 11:18

250121-nef6aa1jfx 10

Analysis

  • max time kernel
    150s
  • max time network
    156s
  • 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

    644d928a4a942f6ae4c90640103b595941f7a0b557ba49d122d137b1429c0325.exe

  • Size

    2.0MB

  • MD5

    771eade8ae168734077830344b852624

  • SHA1

    5ac6b79a426a3229adef67508b751815af689f86

  • SHA256

    644d928a4a942f6ae4c90640103b595941f7a0b557ba49d122d137b1429c0325

  • SHA512

    ec70c99c9c0f608abd25ad614488c5a8adf7170aa29a4204efa5e7d03c0a50a55fdabbbf5758a4a24f9542fd264e98c05b28e99082e5775ca4b3d13614eef3b6

  • SSDEEP

    24576:N2bLgxjx71gWufN62I520/hjlB6iTzKFMiZpWht5YY7tOvkIOTpNsVOt1a42oU+D:NYQxSNudS5ZpWNd7tOvJONNdMboMToL

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\644d928a4a942f6ae4c90640103b595941f7a0b557ba49d122d137b1429c0325.exe
    "C:\Users\Admin\AppData\Local\Temp\644d928a4a942f6ae4c90640103b595941f7a0b557ba49d122d137b1429c0325.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:464
    • C:\Users\Admin\AppData\Local\Temp\644d928a4a942f6ae4c90640103b595941f7a0b557ba49d122d137b1429c0325.exe
      "C:\Users\Admin\AppData\Local\Temp\644d928a4a942f6ae4c90640103b595941f7a0b557ba49d122d137b1429c0325.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3284

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/464-1-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/464-0-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/464-2-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/464-5-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/464-8-0x00000000005BB000-0x00000000005C2000-memory.dmp

    Filesize

    28KB

  • memory/464-13-0x00000000005D0000-0x00000000005FC000-memory.dmp

    Filesize

    176KB

  • memory/464-12-0x00000000005CB000-0x00000000005FC000-memory.dmp

    Filesize

    196KB

  • memory/464-11-0x00000000005C6000-0x00000000005CC000-memory.dmp

    Filesize

    24KB

  • memory/464-10-0x00000000005C3000-0x00000000005CC000-memory.dmp

    Filesize

    36KB

  • memory/464-9-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/464-7-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/3284-3-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-14-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-15-0x0000000000400000-0x0000000000601000-memory.dmp

    Filesize

    2.0MB

  • memory/3284-6-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-16-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-18-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-17-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-19-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-20-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-21-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-22-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-23-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-24-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-25-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-26-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-27-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-28-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-29-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-30-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-31-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-32-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-33-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-34-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-35-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-36-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-37-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-38-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-39-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-40-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-41-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-42-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-43-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-44-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-45-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-46-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-47-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-48-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-49-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-50-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-51-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-52-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-53-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-54-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-55-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-56-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-57-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-58-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-59-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-60-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-61-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-62-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-63-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-64-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-65-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-66-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-67-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-68-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-69-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-70-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-71-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-72-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-73-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB

  • memory/3284-74-0x0000000000610000-0x0000000000685000-memory.dmp

    Filesize

    468KB