Resubmissions

21-01-2025 11:18

250121-nef6aa1jfx 10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • 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

    901478668c0d5ecb3b5044dcb3e1744045f7b2a800a7c0c67020d9294470f3d4.exe

  • Size

    2.2MB

  • MD5

    6c155f7b7d10fffc7a31ce4eb5d3a1f8

  • SHA1

    f3483275258b30ab963e672656fd9aaebe814877

  • SHA256

    901478668c0d5ecb3b5044dcb3e1744045f7b2a800a7c0c67020d9294470f3d4

  • SHA512

    5a1a94c2b63a683a5281b05b998b5b35a215bab2cc47c74f332783a78a5de107f8bb15ca3c006e1672f4ab4918376f09769fa028a172b68a6ded814e4be0ed65

  • SSDEEP

    49152:qb33xSNudSRZpWXd7tOvJOodL1PXdFs0Ki3lZ4/yARne:qoR2t6ld1Ln

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\901478668c0d5ecb3b5044dcb3e1744045f7b2a800a7c0c67020d9294470f3d4.exe
    "C:\Users\Admin\AppData\Local\Temp\901478668c0d5ecb3b5044dcb3e1744045f7b2a800a7c0c67020d9294470f3d4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5052
    • C:\Users\Admin\AppData\Local\Temp\901478668c0d5ecb3b5044dcb3e1744045f7b2a800a7c0c67020d9294470f3d4.exe
      "C:\Users\Admin\AppData\Local\Temp\901478668c0d5ecb3b5044dcb3e1744045f7b2a800a7c0c67020d9294470f3d4.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3440-54-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-71-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-15-0x0000000000400000-0x000000000064F000-memory.dmp

    Filesize

    2.3MB

  • memory/3440-74-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-16-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-73-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-18-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-17-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-72-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-37-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-14-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-70-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-69-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-6-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-68-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-36-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-67-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-66-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-65-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-19-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-20-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-21-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-22-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-23-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-24-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-25-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-26-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-27-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-28-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-29-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-30-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-31-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-32-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-33-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-34-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-35-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-3-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-64-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-49-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-39-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-40-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-41-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-42-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-43-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-44-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-45-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-46-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-47-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-48-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-38-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-50-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-51-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-52-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-53-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-63-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-55-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-56-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-57-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-58-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-59-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-60-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-61-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/3440-62-0x00000000000C0000-0x0000000000135000-memory.dmp

    Filesize

    468KB

  • memory/5052-1-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/5052-9-0x000000000060B000-0x000000000060F000-memory.dmp

    Filesize

    16KB

  • memory/5052-0-0x0000000000400000-0x000000000064F000-memory.dmp

    Filesize

    2.3MB

  • memory/5052-2-0x0000000000400000-0x000000000064F000-memory.dmp

    Filesize

    2.3MB

  • memory/5052-4-0x0000000000400000-0x000000000064F000-memory.dmp

    Filesize

    2.3MB

  • memory/5052-5-0x0000000000400000-0x000000000064F000-memory.dmp

    Filesize

    2.3MB

  • memory/5052-7-0x0000000000407000-0x0000000000421000-memory.dmp

    Filesize

    104KB

  • memory/5052-11-0x0000000000613000-0x0000000000618000-memory.dmp

    Filesize

    20KB

  • memory/5052-8-0x0000000000608000-0x000000000060F000-memory.dmp

    Filesize

    28KB

  • memory/5052-10-0x000000000060F000-0x0000000000618000-memory.dmp

    Filesize

    36KB

  • memory/5052-12-0x0000000000617000-0x0000000000649000-memory.dmp

    Filesize

    200KB

  • memory/5052-13-0x000000000061C000-0x0000000000649000-memory.dmp

    Filesize

    180KB