Windows
Analysis Report
Howard.exe
Overview
General Information
Detection
Vidar
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Found malware configuration
Malicious sample detected (through community Yara rule)
Yara detected Vidar stealer
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Sigma detected: Silenttrinity Stager Msbuild Activity
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Allocates memory with a write watch (potentially for evading sandboxes)
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to dynamically determine API calls
Contains functionality to launch a program with higher privileges
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 simulate keystroke presses
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Enables debug privileges
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
JA3 SSL client fingerprint seen in connection with other malware
PE file contains an invalid checksum
PE file contains executable resources (Code or Archives)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
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)
Uses the system / local time for branch decision (may execute only at specific dates)
Yara signature match
Classification
- System is w10x64
Howard.exe (PID: 7380 cmdline:
"C:\Users\ user\Deskt op\Howard. exe" MD5: 262DFB3C2333AFB399B1A384FA65BDEB) MSBuild.exe (PID: 7504 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Vidar | Vidar is a forked malware based on Arkei. It seems this stealer is one of the first that is grabbing information on 2FA Software and Tor Browser. | No Attribution |
{"C2 url": "https://steamcommunity.com/profiles/76561199824159981", "Botnet": "a110mgz"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
Windows_Trojan_Donutloader_f40e3759 | unknown | unknown |
| |
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
Click to see the 4 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_Vidar_1 | Yara detected Vidar stealer | Joe Security | ||
infostealer_win_vidar_strings_nov23 | Finds Vidar samples based on the specific strings | Sekoia.io |
| |
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
JoeSecurity_CosturaAssemblyLoader | Yara detected Costura Assembly Loader | Joe Security | ||
Click to see the 6 entries |
System Summary |
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Source: | Author: Kiran kumar s, oscd.community: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-02-14T06:31:23.386495+0100 | 2028765 | 3 | Unknown Traffic | 192.168.2.4 | 57269 | 95.216.180.186 | 443 | TCP |
2025-02-14T06:32:09.825347+0100 | 2028765 | 3 | Unknown Traffic | 192.168.2.4 | 49736 | 95.216.180.186 | 443 | TCP |
2025-02-14T06:32:45.777565+0100 | 2028765 | 3 | Unknown Traffic | 192.168.2.4 | 49753 | 95.216.180.186 | 443 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira URL Cloud: | ||
Source: | Avira URL Cloud: | ||
Source: | Avira URL Cloud: | ||
Source: | Avira URL Cloud: | ||
Source: | Avira URL Cloud: |
Source: | Malware Configuration Extractor: |
Source: | Integrated Neural Analysis Model: |
Source: | Code function: | 0_2_0042B040 | |
Source: | Code function: | 0_2_0042B140 | |
Source: | Code function: | 0_2_0042ADE0 | |
Source: | Code function: | 0_2_0042AEC0 |
Source: | Static PE information: |
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: |
Source: | Binary string: |