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Windows
Analysis Report
Kh7W85ONS7.exe
Overview
General Information
Sample name: | Kh7W85ONS7.exerenamed because original name is a hash value |
Original sample name: | 395c4070233d059b2f1661fbdc6af0b4.exe |
Analysis ID: | 1465084 |
MD5: | 395c4070233d059b2f1661fbdc6af0b4 |
SHA1: | c4e8741e9c21d4a5d9a45138232da82c751cc390 |
SHA256: | 09dcf54c74a3669c9cd811df04f84601c723a7e7457b414e15a842192b8df669 |
Tags: | 32exetrojan |
Infos: | |
Detection
AsyncRAT, DarkTortilla, StormKitty, WorldWind Stealer
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Capture Wi-Fi password
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected DarkTortilla Crypter
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Yara detected WorldWind Stealer
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Allocates memory in foreign processes
Connects to a pastebin service (likely for C&C)
Contains functionality to capture screen (.Net source)
Contains functionality to log keystrokes (.Net Source)
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Silenttrinity Stager Msbuild Activity
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal WLAN passwords
Tries to harvest and steal browser information (history, passwords, etc)
Uses netsh to modify the Windows network and firewall settings
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected Generic Downloader
AV process strings found (often used to terminate AV products)
Allocates memory with a write watch (potentially for evading sandboxes)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to launch a process as a different user
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
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 check the online IP address of the machine
May sleep (evasive loops) to hinder dynamic analysis
PE / OLE file has an invalid certificate
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
Sample file is different than original file name gathered from version info
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer
Yara signature match
Classification
- System is w10x64
- Kh7W85ONS7.exe (PID: 7368 cmdline:
"C:\Users\ user\Deskt op\Kh7W85O NS7.exe" MD5: 395C4070233D059B2F1661FBDC6AF0B4) - MSBuild.exe (PID: 8040 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) - cmd.exe (PID: 1036 cmdline:
"cmd.exe" /C chcp 65 001 && net sh wlan sh ow profile | findstr All MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 1296 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - chcp.com (PID: 3344 cmdline:
chcp 65001 MD5: 20A59FB950D8A191F7D35C4CA7DA9CAF) - netsh.exe (PID: 3232 cmdline:
netsh wlan show prof ile MD5: 4E89A1A088BE715D6C946E55AB07C7DF) - findstr.exe (PID: 1736 cmdline:
findstr Al l MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - cmd.exe (PID: 4040 cmdline:
"cmd.exe" /C chcp 65 001 && net sh wlan sh ow network s mode=bss id MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 2056 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - chcp.com (PID: 2160 cmdline:
chcp 65001 MD5: 20A59FB950D8A191F7D35C4CA7DA9CAF) - netsh.exe (PID: 2216 cmdline:
netsh wlan show netw orks mode= bssid MD5: 4E89A1A088BE715D6C946E55AB07C7DF)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
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 |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
DarkTortilla | DarkTortilla is a complex and highly configurable .NET-based crypter that has possibly been active since at least August 2015. It typically delivers popular information stealers and remote access trojans (RATs) such as AgentTesla, AsyncRat, NanoCore, and RedLine. While it appears to primarily deliver commodity malware, Secureworks Counter Threat Unit (CTU) researchers identified DarkTortilla samples delivering targeted payloads such as Cobalt Strike and Metasploit. It can also deliver "addon packages" such as additional malicious payloads, benign decoy documents, and executables. It features robust anti-analysis and anti-tamper controls that can make detection, analysis, and eradication challenging.From January 2021 through May 2022, an average of 93 unique DarkTortilla samples per week were uploaded to the VirusTotal analysis service. Code similarities suggest possible links between DarkTortilla and other malware: a crypter operated by the RATs Crew threat group, which was active between 2008 and 2012, and the Gameloader malware that emerged in 2021. | No Attribution |
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Cameleon, StormKitty | PWC describes this malware as a backdoor, capable of file management, upload and download of files, and execution of commands. | No Attribution |
{"C2 url": "https://api.telegram.org/bot7322917184:AAEZSbuOE5wiEr26jHjFYvUlp0J9RAox2lU/sendMessage"}
{"Server": "127.0.0.1", "Ports": "6606,7707,8808", "Telegram C2": "https://api.telegram.org/bot7322917184:AAEZSbuOE5wiEr26jHjFYvUlp0J9RAox2lU/sendMessage?chat_id=5635047295", "Version": "", "AES_key": "VIfxfqryUTyZUBGDCBAvbYVYIsexIM7Z", "Mutex": "AsyncMutex_6SI8OkPnk", "Certificate": "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", "ServerSignature": "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", "Group": "Default"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
JoeSecurity_StormKitty | Yara detected StormKitty Stealer | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_TelegramRAT | Yara detected Telegram RAT | Joe Security | ||
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse | Detects file containing reversed ASEP Autorun registry keys | ditekSHen |
| |
Click to see the 37 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_DarkTortilla | Yara detected DarkTortilla Crypter | Joe Security | ||
JoeSecurity_DarkTortilla | Yara detected DarkTortilla Crypter | Joe Security | ||
JoeSecurity_DarkTortilla | Yara detected DarkTortilla Crypter | Joe Security | ||
JoeSecurity_DarkTortilla | Yara detected DarkTortilla Crypter | Joe Security | ||
JoeSecurity_AsyncRAT | Yara detected AsyncRAT | Joe Security | ||
Click to see the 51 entries |
System Summary |
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Source: | Author: Kiran kumar s, oscd.community: |
Stealing of Sensitive Information |
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Source: | Author: Joe Security: |
⊘No Snort rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Malware Configuration Extractor: |