Resubmissions

21-01-2025 11:18

250121-nef6aa1jfx 10

Analysis

  • max time kernel
    152s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21-01-2025 11:18

General

  • Target

    3e6642f7100bb72137d68b5aa34a2d1f1a75722ab7d2b15987bbdeb84bc3265e.exe

  • Size

    1.9MB

  • MD5

    0475d0b51b30bf28599601243c9a9aae

  • SHA1

    7adf31fb8aaa01d94531f9e058e33877e0141ccf

  • SHA256

    3e6642f7100bb72137d68b5aa34a2d1f1a75722ab7d2b15987bbdeb84bc3265e

  • SHA512

    92167276fc1688239f252a7101c2082ce6cd1f65f30de3b9b33a22d2fcd58a542faecf308d67c719756b4b504247c1588d159120439d1d2ef1a47612575192d6

  • SSDEEP

    24576:7DseOujx71gWufN62I520/hjlB6iTzKFjiZpWFsZrKp0HqGmyejFykKu9XusD4eq:7DjxSNudSOZpW+wG8nXv0eq

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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e6642f7100bb72137d68b5aa34a2d1f1a75722ab7d2b15987bbdeb84bc3265e.exe
    "C:\Users\Admin\AppData\Local\Temp\3e6642f7100bb72137d68b5aa34a2d1f1a75722ab7d2b15987bbdeb84bc3265e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2836
    • C:\Users\Admin\AppData\Local\Temp\3e6642f7100bb72137d68b5aa34a2d1f1a75722ab7d2b15987bbdeb84bc3265e.exe
      "C:\Users\Admin\AppData\Local\Temp\3e6642f7100bb72137d68b5aa34a2d1f1a75722ab7d2b15987bbdeb84bc3265e.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2380

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2380-38-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-23-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2380-13-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-14-0x0000000000400000-0x0000000000603000-memory.dmp

    Filesize

    2.0MB

  • memory/2380-70-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-69-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-5-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-68-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-16-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-15-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-17-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-18-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-39-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-20-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-21-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-22-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-40-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-24-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-25-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-26-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-27-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-28-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-29-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-30-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-31-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-32-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-33-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-34-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-35-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-36-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-37-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-67-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-19-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-9-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-41-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-42-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-43-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-44-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-45-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-46-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-47-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-48-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-49-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-50-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-51-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-52-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-53-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-54-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-55-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-56-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-57-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-58-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-59-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-60-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-61-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-62-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-63-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-64-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-65-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2380-66-0x00000000000B0000-0x0000000000125000-memory.dmp

    Filesize

    468KB

  • memory/2836-3-0x0000000000400000-0x0000000000603000-memory.dmp

    Filesize

    2.0MB

  • memory/2836-4-0x0000000000400000-0x0000000000603000-memory.dmp

    Filesize

    2.0MB

  • memory/2836-2-0x0000000000400000-0x0000000000603000-memory.dmp

    Filesize

    2.0MB

  • memory/2836-0-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/2836-10-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/2836-12-0x0000000000400000-0x0000000000603000-memory.dmp

    Filesize

    2.0MB