Edit tour
Windows
Analysis Report
NHYGUnNN.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
System process connects to network (likely due to code injection or exploit)
Snort IDS alert for network traffic
Sample uses process hollowing technique
Tries to steal Mail credentials (via file / registry access)
Uses netstat to query active network connections and open ports
Maps a DLL or memory area into another process
Writes to foreign memory regions
Machine Learning detection for sample
Allocates memory in foreign processes
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Queues an APC in another process (thread injection)
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Tries to harvest and steal browser information (history, passwords, etc)
Queries the volume information (name, serial number etc) of a device
Yara signature match
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Found inlined nop instructions (likely shell or obfuscated code)
PE file does not import any functions
Sample file is different than original file name gathered from version info
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Classification
- System is w10x64
- NHYGUnNN.exe (PID: 5380 cmdline:
C:\Users\u ser\Deskto p\NHYGUnNN .exe MD5: 4F9C8432B57FA1AA875071DE547BA947) - RegSvcs.exe (PID: 5148 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\Regs vcs.exe MD5: 2867A3817C9245F7CF518524DFD18F28) - explorer.exe (PID: 3452 cmdline:
C:\Windows \Explorer. EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D) - NETSTAT.EXE (PID: 4844 cmdline:
C:\Windows \SysWOW64\ NETSTAT.EX E MD5: 4E20FF629119A809BC0E7EE2D18A7FDB)
- cleanup
{"C2 list": ["www.needook.com/4u5a/"]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
Click to see the 18 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.2.6154.209.6.24149722802829004 11/29/22-18:25:42.914102 |
SID: | 2829004 |
Source Port: | 49722 |
Destination Port: | 80 |
Protocol: | TCP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
---|
Source: | ReversingLabs: |
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: | ||
Source: | File source: |
Source: | Joe Sandbox ML: |
Source: | Malware Configuration Extractor: |
Source: | Static PE information: |
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: |
Source: | Code function: |
Source: | Code function: | ||
Source: | Code function: | ||
Source: | Code function: |
Networking |
---|
Source: | Network Connect: | ||
Source: | Domain query: | ||
Source: | Domain query: | ||
Source: | Network Connect: | ||
Source: | Network Connect: | ||
Source: | Network Connect: | ||
Source: | Network Connect: | ||
Source: | Domain query: | ||
Source: | Domain query: | ||
Source: | Network Connect: | ||
Source: | Domain query: | ||
Source: | Domain query: |
Source: | Snort IDS: |
Source: | Process created: |
Source: | URLs: |
Source: | ASN Name: | ||
Source: | ASN Name: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |
Source: | IP Address: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |