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Analysis

  • max time kernel
    158s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/09/2022, 23:46

General

  • Target

    order confirmation reference no. FXEPS6S08102.exe

  • Size

    891KB

  • MD5

    19877c0de0c846072076447d6e4b539c

  • SHA1

    ed8dbcd877b29427a0e65afca87a961b913b2427

  • SHA256

    7ff888a459a2476f9e3dfcaf8799f30bc24808d103606512503949b3ab818cc4

  • SHA512

    af2e143f89786bc3bfef86168fc682db667fe7517922e6f3b02d900db929be3e49d212d970be9b393597648e24db0310222a7f8285c995570857b8404ed7ebcb

  • SSDEEP

    12288:ZOoNkC1LR7d1g1Iasz4l4yDoCHjsG83q/rhf7fvQBu5F:ZbpRh1i+4ToT3q/lvku/

Malware Config

Extracted

Family

remcos

Botnet

yak

C2

bestsuccess.ddns.net:2442

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

    dfe.dst

  • keylog_flag

    false

  • keylog_folder

    rtrrrrrrrrrrrrrrrr

  • keylog_path

    %Temp%

  • mouse_option

    false

  • mutex

    ssssssssssssssssssssssa-VBDY16

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • ModiLoader Second Stage 63 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\order confirmation reference no. FXEPS6S08102.exe
    "C:\Users\Admin\AppData\Local\Temp\order confirmation reference no. FXEPS6S08102.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4688
    • C:\Users\Admin\AppData\Local\Temp\order confirmation reference no. FXEPS6S08102.exe
      "C:\Users\Admin\AppData\Local\Temp\order confirmation reference no. FXEPS6S08102.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:4280

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4280-288-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/4280-289-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/4688-133-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-136-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-137-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-138-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-135-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-140-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-141-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-142-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-143-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-144-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-139-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-145-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-146-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-147-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-148-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-149-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-150-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-151-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-153-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-154-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-155-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-156-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-157-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-158-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-152-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-159-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-160-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-161-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-162-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-163-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-164-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-165-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-167-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-168-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-169-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-166-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-170-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-171-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-172-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-173-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-174-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-175-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-176-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-177-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-178-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-179-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-180-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-181-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-182-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-183-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-184-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-185-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-186-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-187-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-188-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-189-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-190-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-192-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-193-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-191-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-194-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-195-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB

  • memory/4688-196-0x0000000002A60000-0x0000000002AC4000-memory.dmp

    Filesize

    400KB