Overview

overview

10

Static

static

10

3REM-ULTIT...Br.exe

windows7_x64

10

3REM-ULTIT...Br.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    165s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 03:27

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General

  • Target

    3REM-ULTITEC-865hkk-PROTECTIVE-PPErvGiVBzqbBf9Br.exe

  • Size

    466KB

  • MD5

    26791ff2139c7eef1328963dd38d4bc9

  • SHA1

    9b3beb6c2aa6e621b3d2a9e9c985a66dcd214dfe

  • SHA256

    e9405efd2e392e4732172009d420567b63b2ed3eb1ad51d9a0539eefaf620030

  • SHA512

    deb446977a0dab965406529b2ef1fc1fcc198e4dd3a20fedb8f60419a7d64a181e6ea586ed27eebc4fc69bd757c06f674713d6733a46bd92b83073cfc5138f44

Score
10/10
remcoshostrat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

185.165.153.215:6608

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_pfarwitquv

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

Signatures

  • Remcos

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

    ratremcos
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3REM-ULTITEC-865hkk-PROTECTIVE-PPErvGiVBzqbBf9Br.exe
    "C:\Users\Admin\AppData\Local\Temp\3REM-ULTITEC-865hkk-PROTECTIVE-PPErvGiVBzqbBf9Br.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GIcFpDVBO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCB82.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2060
    • C:\Users\Admin\AppData\Local\Temp\3REM-ULTITEC-865hkk-PROTECTIVE-PPErvGiVBzqbBf9Br.exe
      "{path}"
      2⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2256

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCB82.tmp
    Filesize

    1KB

    MD5

    73b94b03fa6a77d96813c37a07a99b61

    SHA1

    42cc123303933fe8d438ba22fdaad7c4fb829551

    SHA256

    60c4d0317193440a3324b37b20143fa9a8bb640e04e7d7de1abe234968ccd594

    SHA512

    0d9c5e9e0625dd98dc5cd76785edcae2433fd72c03f5f7a8964df823ab6e162df294f151906d91a527c5d0bcdbb263bd13e64222607be7bb5313b4e3b6d6c20f

    Download Submit
  • memory/1904-130-0x0000000074F00000-0x00000000754B1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2060-131-0x0000000000000000-mapping.dmp
    Download
  • memory/2256-133-0x0000000000000000-mapping.dmp
    Download
  • memory/2256-134-0x0000000000400000-0x0000000000417000-memory.dmp
    Filesize

    92KB

    Download
  • memory/2256-136-0x0000000000400000-0x0000000000417000-memory.dmp
    Filesize

    92KB

    Download
  • memory/2256-137-0x0000000000400000-0x0000000000417000-memory.dmp
    Filesize

    92KB

    Download