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Windows
Analysis Report
82eqjqLrzE.exe
Overview
General Information
Sample name: | 82eqjqLrzE.exerenamed because original name is a hash value |
Original sample name: | a7f9f165cd238ccbe2ca5803fcd3209d.exe |
Analysis ID: | 1586390 |
MD5: | a7f9f165cd238ccbe2ca5803fcd3209d |
SHA1: | 1c145bc3fa28fa807d3c831de524b5806e0de334 |
SHA256: | f98a607f7aed8a5dd5950711a576fede3326857b4254de991abaf9a70e77be7b |
Tags: | AsyncRATexeRATuser-abuse_ch |
Infos: | |
Detection
AsyncRAT
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected AsyncRAT
.NET source code contains very large strings
AI detected suspicious sample
Connects to many ports of the same IP (likely port scanning)
Drops PE files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Generic Downloader
AV process strings found (often used to terminate AV products)
Abnormal high CPU Usage
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains long sleeps (>= 3 min)
Creates a start menu entry (Start Menu\Programs\Startup)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Drops PE files
Drops files with a non-matching file extension (content does not match file extension)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: Execution of Suspicious File Type Extension
Sigma detected: Startup Folder File Write
Stores files to the Windows start menu directory
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- 82eqjqLrzE.exe (PID: 7556 cmdline:
"C:\Users\ user\Deskt op\82eqjqL rzE.exe" MD5: A7F9F165CD238CCBE2CA5803FCD3209D) - conhost.exe (PID: 7564 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - tempfile (PID: 7628 cmdline:
"C:\Users\ user\Deskt op\tempfil e" MD5: E00A1AB434452FD6F77C941C09F257D6)
- 82eqjqLrzE.exe (PID: 7808 cmdline:
"C:\Users\ user\AppDa ta\Roaming \Microsoft \Windows\S tart Menu\ Programs\S tartup\82e qjqLrzE.ex e" MD5: A7F9F165CD238CCBE2CA5803FCD3209D) - conhost.exe (PID: 7816 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - tempfile (PID: 7876 cmdline:
"C:\Users\ user\AppDa ta\Roaming \Microsoft \Windows\S tart Menu\ Programs\S tartup\tem pfile" MD5: E00A1AB434452FD6F77C941C09F257D6)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
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AsyncRAT | AsyncRAT is a Remote Access Tool (RAT) designed to remotely monitor and control other computers through a secure encrypted connection. It is an open source remote administration tool, however, it could also be used maliciously because it provides functionality such as keylogger, remote desktop control, and many other functions that may cause harm to the victims computer. In addition, AsyncRAT can be delivered via various methods such as spear-phishing, malvertising, exploit kit and other techniques. | No Attribution |
{"External_config_on_Pastebin": "null", "Server": "144.91.79.54", "Ports": "32769", "Version": "0.5.8", "Autorun": "false", "Install_Folder": "TestFile.exe", "Install_File": "MUNGSUVObzNmRlRHdEM2TFlxTUdENVRqYnF6T05oY2o="}
Source | Rule | Description | Author | Strings |
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JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
JoeSecurity_GenericDownloader_1 | Yara detected Generic Downloader | Joe Security | ||
Windows_Trojan_Asyncrat_11a11ba1 | unknown | unknown |
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rat_win_asyncrat | Detect AsyncRAT based on specific strings | Sekoia.io |
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INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse | Detects file containing reversed ASEP Autorun registry keys | ditekSHen |
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Click to see the 5 entries |
Source | Rule | Description | Author | Strings |
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JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse | Detects file containing reversed ASEP Autorun registry keys | ditekSHen |
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JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
Windows_Trojan_Asyncrat_11a11ba1 | unknown | unknown |
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Click to see the 10 entries |
Source | Rule | Description | Author | Strings |
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JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
Windows_Trojan_Asyncrat_11a11ba1 | unknown | unknown |
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Windows_Trojan_Asyncrat_11a11ba1 | unknown | unknown |
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rat_win_asyncrat | Detect AsyncRAT based on specific strings | Sekoia.io |
| |
Click to see the 54 entries |
System Summary |
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Source: | Author: Max Altgelt (Nextron Systems): |
Source: | Author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
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2025-01-09T01:12:07.785445+0100 | 2035595 | 1 | Domain Observed Used for C2 Detected | 144.91.79.54 | 32769 | 192.168.2.4 | 49730 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-01-09T01:12:07.785445+0100 | 2035607 | 1 | Domain Observed Used for C2 Detected | 144.91.79.54 | 32769 | 192.168.2.4 | 49730 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-01-09T01:12:07.785445+0100 | 2842478 | 1 | Malware Command and Control Activity Detected | 144.91.79.54 | 32769 | 192.168.2.4 | 49730 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Networking |
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Source: | String found in binary or memory: | ||
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Key, Mouse, Clipboard, Microphone and Screen Capturing |
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System Summary |
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Source: | Code function: | 0_2_00007FFD9BAA0AD5 | |
Source: | Code function: | 2_2_033C65C0 | |
Source: | Code function: | 2_2_033C5CF0 | |
Source: | Code function: | 2_2_033C59A8 | |
Source: | Code function: | 2_2_033CA878 | |
Source: | Code function: | 3_2_00007FFD9BAA0D13 |
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