Analysis

  • max time kernel
    150s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-04-2024 01:16

General

  • Target

    3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe

  • Size

    1.3MB

  • MD5

    290102d5e403f9eb6d7cd7fe3188d307

  • SHA1

    bac36c2536721592ebcac74a88c50b00fab67e5a

  • SHA256

    3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3

  • SHA512

    9f8f0ba6d4c81541a2aa55a3f5c5d63eaab1fe1dca8c98e26e4c605b5dc4ce734dff6656f139cbac73c0d753939964af28dc5f2b0d09e03da4361dc65f35a556

  • SSDEEP

    24576:6AHnh+eWsN3skA4RV1Hom2KXMmHal8/L5Sq6C/pWPxGgp5:Nh+ZkldoPK8Yal8FS5j

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

shgoini.com:30902

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-7XHN5V

  • 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.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 30 IoCs
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe
    "C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Users\Admin\AppData\Local\directory\chrome.exe
      "C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3036
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3.exe"
        3⤵
          PID:2288

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\outvaunts

      Filesize

      29KB

      MD5

      a5aafcbb781d0c5b2f340a29d0629577

      SHA1

      5885120f4413bf4256b9722c71982785f741131f

      SHA256

      fd31cbc5b26cd67d16c85a091779f0af58db13a956d3dc6da79d7822f8ea02cd

      SHA512

      9cae262aa54357bae92fa09c3fcfbb964df079d391747ef2f3673c3903e19b4f1cb5df85cf78cf8a5ba1d33614e766a4e059fd3681ae4c47a65c750e3b3b8a38

    • C:\Users\Admin\AppData\Local\Temp\unprickly

      Filesize

      483KB

      MD5

      59aa802af60e63fe7d976d2230c8710c

      SHA1

      f105fac10d095b5019a048a39e666586536a30a1

      SHA256

      a635bcea499830d578743018ea6841affb8ab25588c8650c9d4ff2a0cbd01236

      SHA512

      36362896bba93b76869ae5eb6e57a1f4f11a3a6ddbb2a28de0909c870cb44006acf077edc07b8def18b3fd23215973f080c0aa9fde4635e783689c57ac3b0fb4

    • \Users\Admin\AppData\Local\directory\chrome.exe

      Filesize

      104.3MB

      MD5

      2cad1ea2a8feb308706348ddc16e1cdc

      SHA1

      486ac7f411b90be81fe246fc16b93904cc95f7aa

      SHA256

      0173da8df43aac4427c9702a1013f5f0accf7f6c3ea7392052d168bd81722965

      SHA512

      739b156f959a7562671414bc9ce8b8d27f4003e39f07970a71f2249db668afc709e6051572335b545303dae2c1c813ffb6cff2d45a772f2e2ee670de60a97e3e

    • memory/1092-10-0x0000000000120000-0x0000000000124000-memory.dmp

      Filesize

      16KB

    • memory/2288-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-46-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-33-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-34-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-35-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-37-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-38-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-39-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-42-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-43-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-30-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-45-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-47-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-32-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-48-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-49-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-50-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-51-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-53-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-54-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-55-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-56-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-57-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-58-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-59-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-60-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/2288-63-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB