Windows
Analysis Report
kent.ps1
Overview
General Information
Detection
Remcos
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Antivirus detection for dropped file
Attempt to bypass Chrome Application-Bound Encryption
Contains functionality to bypass UAC (CMSTPLUA)
Detected Remcos RAT
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Found evasive API chain checking for user administrative privileges
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
PE file contains section with special chars
PE file has nameless sections
Powershell drops PE file
Sigma detected: Potential Data Stealing Via Chromium Headless Debugging
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Writes to foreign memory regions
Yara detected WebBrowserPassView password recovery tool
Allocates memory with a write watch (potentially for evading sandboxes)
Binary contains a suspicious time stamp
Contains functionality for read data from the clipboard
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to download and launch executables
Contains functionality to dynamically determine API calls
Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)
Contains functionality to enumerate running services
Contains functionality to launch a control a shell (cmd.exe)
Contains functionality to modify clipboard data
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Contains functionality to simulate mouse events
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Downloads executable code via HTTP
Drops PE files
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found decision node followed by non-executed suspicious APIs
Found evasive API chain checking for process token information
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE file contains sections with non-standard names
Queries the volume information (name, serial number etc) of a device
Sigma detected: Browser Execution In Headless Mode
Sigma detected: Browser Started with Remote Debugging
Sigma detected: Change PowerShell Policies to an Insecure Level
Suricata IDS alerts with low severity for network traffic
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Yara detected Keylogger Generic
Yara signature match
Classification
- System is w10x64
powershell.exe (PID: 6520 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -noLogo -E xecutionPo licy unres tricted -f ile "C:\Us ers\user\D esktop\ken t.ps1" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) conhost.exe (PID: 6532 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) JXCJKXCJHKJHXCJHKXCXCJHK.exe (PID: 6796 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\JXCJKX CJHKJHXCJH KXCXCJHK.e xe" MD5: 83AD102EBF7A8FF7859C781C0DF45BE8) JXCJKXCJHKJHXCJHKXCXCJHK.exe (PID: 6896 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\JXCJKX CJHKJHXCJH KXCXCJHK.e xe" MD5: 83AD102EBF7A8FF7859C781C0DF45BE8) JXCJKXCJHKJHXCJHKXCXCJHK.exe (PID: 6904 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\JXCJKX CJHKJHXCJH KXCXCJHK.e xe" MD5: 83AD102EBF7A8FF7859C781C0DF45BE8) chrome.exe (PID: 7020 cmdline:
--user-dat a-dir=C:\U sers\user\ AppData\Lo cal\Temp\T mpUserData --headles s --remote -debugging -port=9222 --profile -directory ="Default" MD5: E81F54E6C1129887AEA47E7D092680BF) chrome.exe (PID: 6344 cmdline:
"C:\Progra m Files\Go ogle\Chrom e\Applicat ion\Chrome .exe" --ty pe=utility --utility -sub-type= network.mo jom.Networ kService - -lang=en-U S --servic e-sandbox- type=none --noerrdia logs --no- pre-read-m ain-dll -- field-tria l-handle=1 924,i,6628 9520547181 36810,6517 1836605323 82401,2621 44 --disab le-feature s=PaintHol ding --var iations-se ed-version --mojo-pl atform-cha nnel-handl e=2148 /pr efetch:3 MD5: E81F54E6C1129887AEA47E7D092680BF) recover.exe (PID: 7052 cmdline:
C:\Windows \SysWOW64\ recover.ex e /stext " C:\Users\u ser\AppDat a\Local\Te mp\gogzsxe mgwpfijwqn pyiza" MD5: D38B657A068016768CA9F3B5E100B472) recover.exe (PID: 7076 cmdline:
C:\Windows \SysWOW64\ recover.ex e /stext " C:\Users\u ser\AppDat a\Local\Te mp\iqlksqo fuehskykce akkkmhvt" MD5: D38B657A068016768CA9F3B5E100B472) recover.exe (PID: 7100 cmdline:
C:\Windows \SysWOW64\ recover.ex e /stext " C:\Users\u ser\AppDat a\Local\Te mp\tkrctiz himzxveggn lfdvrbmcax fu" MD5: D38B657A068016768CA9F3B5E100B472) msedge.exe (PID: 7752 cmdline:
--user-dat a-dir=C:\U sers\user\ AppData\Lo cal\Temp\T mpUserData --headles s --remote -debugging -port=9222 --profile -directory ="Default" MD5: BF154738460E4AB1D388970E1AB13FAB) msedge.exe (PID: 7932 cmdline:
"C:\Progra m Files (x 86)\Micros oft\Edge\A pplication \msedge.ex e" --type= utility -- utility-su b-type=net work.mojom .NetworkSe rvice --la ng=en-GB - -service-s andbox-typ e=none --u se-angle=s wiftshader -webgl --u se-gl=angl e --headle ss --mojo- platform-c hannel-han dle=1940 - -field-tri al-handle= 1492,i,179 8567758073 8979378,15 1900042384 09929913,2 62144 --di sable-feat ures=Paint Holding /p refetch:3 MD5: BF154738460E4AB1D388970E1AB13FAB)
notepad.exe (PID: 6656 cmdline:
"C:\Window s\System32 \notepad.e xe" "C:\Us ers\user\D esktop\ken t.ps1" MD5: 27F71B12CB585541885A31BE22F61C83)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Remcos, RemcosRAT | Remcos (acronym of Remote Control & Surveillance Software) is a commercial Remote Access Tool to remotely control computers.Remcos is advertised as legitimate software which can be used for surveillance and penetration testing purposes, but has been used in numerous hacking campaigns.Remcos, once installed, opens a backdoor on the computer, granting full access to the remote user.Remcos is developed by the cybersecurity company BreakingSecurity. |
{"Host:Port:Password": ["196.251.69.63:2721:1"], "Assigned name": "Brazil", "Connect interval": "1", "Install flag": "Disable", "Setup HKCU\\Run": "Enable", "Setup HKLM\\Run": "Enable", "Install path": "Application path", "Copy file": "remcos.exe", "Startup value": "Disable", "Hide file": "Disable", "Mutex": "Rmc-U6XQL5", "Keylog flag": "0", "Keylog path": "Application path", "Keylog file": "logs.dat", "Keylog crypt": "Disable", "Hide keylog file": "Disable", "Screenshot flag": "Disable", "Screenshot time": "1", "Take Screenshot option": "Disable", "Take screenshot title": "", "Take screenshot time": "5", "Screenshot path": "AppData", "Screenshot file": "Screenshots", "Screenshot crypt": "Disable", "Mouse option": "Disable", "Delete file": "Disable", "Audio record time": "5", "Audio folder": "MicRecords", "Connect delay": "0", "Copy folder": "Remcos", "Keylog folder": "remcos"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
Windows_Trojan_Remcos_b296e965 | unknown | unknown |
|
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
JoeSecurity_WebBrowserPassView | Yara detected WebBrowserPassView password recovery tool | Joe Security | ||
JoeSecurity_Keylogger_Generic | Yara detected Keylogger Generic | Joe Security | ||
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
JoeSecurity_UACBypassusingCMSTP | Yara detected UAC Bypass using CMSTP | Joe Security | ||
Click to see the 23 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_WebBrowserPassView | Yara detected WebBrowserPassView password recovery tool | Joe Security | ||
JoeSecurity_WebBrowserPassView | Yara detected WebBrowserPassView password recovery tool | Joe Security | ||
JoeSecurity_WebBrowserPassView | Yara detected WebBrowserPassView password recovery tool | Joe Security | ||
JoeSecurity_Keylogger_Generic | Yara detected Keylogger Generic | Joe Security | ||
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
Click to see the 22 entries |
System Summary |
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Source: | Author: Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: pH-T (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: frack113: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Stealing of Sensitive Information |
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Source: | Author: Joe Security: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-03-14T11:05:54.492389+0100 | 2036594 | 1 | Malware Command and Control Activity Detected | 192.168.2.6 | 49685 | 196.251.69.63 | 2721 | TCP |
2025-03-14T11:05:55.742290+0100 | 2036594 | 1 | Malware Command and Control Activity Detected | 192.168.2.6 | 49687 | 196.251.69.63 | 2721 | TCP |
2025-03-14T11:05:55.773499+0100 | 2036594 | 1 | Malware Command and Control Activity Detected | 192.168.2.6 | 49686 | 196.251.69.63 | 2721 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-03-14T11:05:56.704953+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.6 | 49688 | 178.237.33.50 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira URL Cloud: |
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Source: | Malware Configuration Extractor: |
Source: | ReversingLabs: |
Source: | Virustotal: | Perma Link | ||
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Source: | Integrated Neural Analysis Model: |
Source: | Code function: | 6_2_00433B64 |
Source: | Binary or memory string: | memstr_72498f6c-d |
Exploits |
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Privilege Escalation |
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Source: | Code function: | 6_2_00406ABC |
Source: | Binary string: | ||
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Source: | Code function: | 6_2_004090DC | |
Source: | Code function: | 6_2_0040B6B5 | |
Source: | Code function: | 6_2_0041C7E5 | |
Source: | Code function: | 6_2_0040B8BA | |
Source: | Code function: | 6_2_0044E989 | |
Source: | Code function: | 6_2_00408CDE | |
Source: | Code function: | 6_2_00419CEE | |
Source: | Code function: | 6_2_00407EDD | |
Source: | Code function: | 6_2_00406F13 | |
Source: | Code function: | 6_2_04AE10F1 | |
Source: | Code function: | 6_2_04AE6580 | |
Source: | Code function: | 6_2_10005B50 | |
Source: | Code function: | 6_2_10007E40 | |
Source: | Code function: | 6_2_10019083 | |
Source: | Code function: | 6_2_10007510 | |
Source: | Code function: | 9_2_0040B477 | |
Source: | Code function: | 10_2_00407EF8 | |
Source: | Code function: | 11_2_00407898 |
Source: | Code function: | 6_2_00407357 |
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior |
Source: | Code function: | 4_2_01485188 |
Source: | Memory has grown: |
Networking |
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Source: | Suricata IDS: | ||
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Source: | IPs: |
Source: | TCP traffic: |
Source: | HTTP traffic detected: |