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Windows
Analysis Report
xenn.ps1
Overview
General Information
| Sample name: | xenn.ps1 |
| Analysis ID: | 1645513 |
| MD5: | 00ec3a2c7aacb1b209de910530df1df8 |
| SHA1: | 87737df623fac9728ca4f139b050446c473c397b |
| SHA256: | aa97c2b1a6c1c6f2066bea8eefb56008cbe3c5ff35972eecdebde28d964e9ab7 |
| Tags: | opendirps1user-skocherhan |
| Infos: |   |
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Detection
RedLine
| Score: | 100 |
| Range: | 0 - 100 |
| Confidence: | 100% |
Signatures
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected RedLine Stealer
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found many strings related to Crypto-Wallets (likely being stolen)
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
Powershell drops PE file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
AV process strings found (often used to terminate AV products)
Allocates memory with a write watch (potentially for evading sandboxes)
Binary contains a suspicious time stamp
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
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
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sigma detected: Change PowerShell Policies to an Insecure Level
Uses code obfuscation techniques (call, push, ret)
Uses insecure TLS / SSL version for HTTPS connection
Yara detected Credential Stealer
Yara signature match
Classification
| Name | Description | Attribution | Blogpost URLs | Link |
|---|---|---|---|---|
| RedLine Stealer | RedLine Stealer is a malware available on underground forums for sale apparently as a standalone ($100/$150 depending on the version) or also on a subscription basis ($100/month). This malware harvests information from browsers such as saved credentials, autocomplete data, and credit card information. A system inventory is also taken when running on a target machine, to include details such as the username, location data, hardware configuration, and information regarding installed security software. More recent versions of RedLine added the ability to steal cryptocurrency. FTP and IM clients are also apparently targeted by this family, and this malware has the ability to upload and download files, execute commands, and periodically send back information about the infected computer. | No Attribution |
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