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Windows
Analysis Report
yPIOW6yoPi.exe
Overview
General Information
Sample name: | yPIOW6yoPi.exerenamed because original name is a hash value |
Original sample name: | 4d8f242a1d64b3b41748d2bd56ee6f7119434dedcdf793a83cea95fb31d13347.exe |
Analysis ID: | 1588844 |
MD5: | a0acd7920f09a59331e008f8d3dc7ac1 |
SHA1: | f6bf51b2bccc91476136e43a91b17076ed78b083 |
SHA256: | 4d8f242a1d64b3b41748d2bd56ee6f7119434dedcdf793a83cea95fb31d13347 |
Tags: | exeRemcosRATuser-adrian__luca |
Infos: | |
Detection
Remcos
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Contains functionality to bypass UAC (CMSTPLUA)
Detected Remcos RAT
Detected unpacking (changes PE section rights)
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
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
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
Creates autostart registry keys with suspicious names
Delayed program exit found
Machine Learning detection for sample
AV process strings found (often used to terminate AV products)
Abnormal high CPU Usage
Checks if the current process is being debugged
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 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)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Drops PE files
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 evaded block containing many API calls
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
One or more processes crash
Sample file is different than original file name gathered from version info
Sigma detected: CurrentVersion Autorun Keys Modification
Suricata IDS alerts with low severity for network traffic
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Yara detected Keylogger Generic
Yara signature match
Classification
- System is w10x64
- yPIOW6yoPi.exe (PID: 1612 cmdline:
"C:\Users\ user\Deskt op\yPIOW6y oPi.exe" MD5: A0ACD7920F09A59331E008F8D3DC7AC1) - WerFault.exe (PID: 3352 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 100 0 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 6248 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 100 8 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 4072 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 111 2 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 4896 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 112 0 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 5800 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 111 6 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 5936 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 112 0 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 4016 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 104 4 MD5: C31336C1EFC2CCB44B4326EA793040F2) - yavascript.exe (PID: 1512 cmdline:
"C:\Users\ user\AppDa ta\Roaming \xenor\yav ascript.ex e" MD5: A0ACD7920F09A59331E008F8D3DC7AC1) - WerFault.exe (PID: 1016 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 512 -s 708 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 4144 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 512 -s 716 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 1340 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 512 -s 744 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 3192 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 512 -s 708 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 5756 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 512 -s 752 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 7004 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 512 -s 920 MD5: C31336C1EFC2CCB44B4326EA793040F2) - WerFault.exe (PID: 364 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 1 612 -s 130 0 MD5: C31336C1EFC2CCB44B4326EA793040F2)
- yavascript.exe (PID: 4196 cmdline:
"C:\Users\ user\AppDa ta\Roaming \xenor\yav ascript.ex e" MD5: A0ACD7920F09A59331E008F8D3DC7AC1) - WerFault.exe (PID: 7132 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 4 196 -s 472 MD5: C31336C1EFC2CCB44B4326EA793040F2)
- yavascript.exe (PID: 1352 cmdline:
"C:\Users\ user\AppDa ta\Roaming \xenor\yav ascript.ex e" MD5: A0ACD7920F09A59331E008F8D3DC7AC1)
- 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": ["198.23.227.212:32583:1"], "Assigned name": "Yavakosa", "Connect interval": "1", "Install flag": "Enable", "Setup HKCU\\Run": "Enable", "Setup HKLM\\Run": "Disable", "Install path": "AppData", "Copy file": "yavascript.exe", "Startup value": "Disable", "Hide file": "Disable", "Mutex": "Rmc-I7G983", "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": "xenor", "Keylog folder": "remcos"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
Windows_Trojan_RedLineStealer_ed346e4c | unknown | unknown |
| |
Windows_Trojan_RedLineStealer_ed346e4c | unknown | unknown |
| |
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
JoeSecurity_Remcos | Yara detected Remcos RAT | Joe Security | ||
Windows_Trojan_RedLineStealer_ed346e4c | unknown | unknown |
|