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Windows Analysis Report wNjqkrm8pH
Overview
General Information
| Sample Name: | wNjqkrm8pH (renamed file extension from none to dll) |
| Analysis ID: | 524862 |
| MD5: | 699b39c805f6a366707eb9a0e580bc0d |
| SHA1: | 04489a4c9d50b62a9ff16f5baa67f568b2eb46ed |
| SHA256: | 142d330305cf2bba895b000b9c7c2da6c6b38cb728d3fb347da8dd9f0bed4845 |
| Tags: | 32dllexe |
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Detection
Emotet
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Found malware configuration
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Multi AV Scanner detection for submitted file
Yara detected Emotet
System process connects to network (likely due to code injection or exploit)
Sigma detected: Emotet RunDLL32 Process Creation
Tries to detect virtualization through RDTSC time measurements
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to query locales information (e.g. system language)
Deletes files inside the Windows folder
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Creates files inside the system directory
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
JA3 SSL client fingerprint seen in connection with other malware
Contains functionality to call native functions
HTTP GET or POST without a user agent
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Program does not show much activity (idle)
IP address seen in connection with other malware
Contains functionality for execution timing, often used to detect debuggers
Sample file is different than original file name gathered from version info
PE file contains an invalid checksum
Extensive use of GetProcAddress (often used to hide API calls)
Contains functionality to read the PEB
Drops PE files to the windows directory (C:\Windows)
Creates a process in suspended mode (likely to inject code)
Contains functionality for read data from the clipboard
Classification
AV Detection: |
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| Found malware configuration |
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| Multi AV Scanner detection for submitted file |
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Perma Link | ||
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| Uses 32bit PE files |
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Code function: |
0_2_6E9DD1EE | |
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2_2_6E9DD1EE | |
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Code function: |
14_2_00EB1A80 | |
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| Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) |
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| System process connects to network (likely due to code injection or exploit) |
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| C2 URLs / IPs found in malware configuration |
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| Internet Provider seen in connection with other malware |
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| JA3 SSL client fingerprint seen in connection with other malware |
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| HTTP GET or POST without a user agent |
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