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Windows
Analysis Report
nZNmWqwnpr
Overview
General Information
| Sample Name: | nZNmWqwnpr (renamed file extension from none to dll) |
| Analysis ID: | 631910 |
| MD5: | 828a9b1007dc45671d8a58e240c7c973 |
| SHA1: | 8214993bb314d0f4c1889e507f88beeb3f6e5b63 |
| SHA256: | b59f16ee5e524814316a8be8ef54ea02f9a496267555e65eeb585e4ade85ffec |
| Tags: | exetrojan |
| Infos: |  |
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Detection
Emotet
| Score: | 80 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Multi AV Scanner detection for submitted file
Yara detected Emotet
System process connects to network (likely due to code injection or exploit)
Multi AV Scanner detection for domain / URL
Machine Learning detection for sample
Hides that the sample has been downloaded from the Internet (zone.identifier)
Queries the volume information (name, serial number etc) of a device
One or more processes crash
Contains functionality to check if a debugger is running (IsDebuggerPresent)
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
Found potential string decryption / allocating functions
Found evasive API chain (may stop execution after checking a module file name)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to dynamically determine API calls
IP address seen in connection with other malware
PE file contains an invalid checksum
Tries to load missing DLLs
Drops PE files to the windows directory (C:\Windows)
Detected TCP or UDP traffic on non-standard ports
Checks if the current process is being debugged
Registers a DLL
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Queries disk information (often used to detect virtual machines)
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Classification
- System is w10x64
loaddll64.exe (PID: 7048 cmdline: loaddll64. exe "C:\Us ers\user\D esktop\nZN mWqwnpr.dl l" MD5: 4E8A40CAD6CCC047914E3A7830A2D8AA) 
cmd.exe (PID: 7056 cmdline: cmd.exe /C rundll32. exe "C:\Us ers\user\D esktop\nZN mWqwnpr.dl l",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F) 
rundll32.exe (PID: 7080 cmdline: rundll32.e xe "C:\Use rs\user\De sktop\nZNm Wqwnpr.dll ",#1 MD5: 73C519F050C20580F8A62C849D49215A) 
WerFault.exe (PID: 3368 cmdline: C:\Windows \system32\ WerFault.e xe -u -p 7 080 -s 336 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0) - regsvr32.exe (PID: 7068 cmdline:
regsvr32.e xe /s C:\U sers\user\ Desktop\nZ NmWqwnpr.d ll MD5: D78B75FC68247E8A63ACBA846182740E) - regsvr32.exe (PID: 6208 cmdline:
C:\Windows \system32\ regsvr32.e xe "C:\Win dows\syste m32\PDQmdR eNwGSs\Zxy xzMoIe.dll " MD5: D78B75FC68247E8A63ACBA846182740E) - rundll32.exe (PID: 7088 cmdline:
rundll32.e xe C:\User s\user\Des ktop\nZNmW qwnpr.dll, AddIn_File Time MD5: 73C519F050C20580F8A62C849D49215A) - WerFault.exe (PID: 1816 cmdline:
C:\Windows \system32\ WerFault.e xe -u -p 7 088 -s 328 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0) - rundll32.exe (PID: 7152 cmdline:
rundll32.e xe C:\User s\user\Des ktop\nZNmW qwnpr.dll, AddIn_Syst emTime MD5: 73C519F050C20580F8A62C849D49215A) - rundll32.exe (PID: 4548 cmdline:
rundll32.e xe C:\User s\user\Des ktop\nZNmW qwnpr.dll, DllRegiste rServer MD5: 73C519F050C20580F8A62C849D49215A)
- svchost.exe (PID: 3348 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p -s B ITS MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6560 cmdline:
C:\Windows \System32\ svchost.ex e -k Local SystemNetw orkRestric ted -p -s NcbService MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 3008 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 5808 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 5188 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 5940 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- cleanup
⊘No configs have been found
| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| Click to see the 11 entries | ||||
| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| JoeSecurity_Emotet_1 | Yara detected Emotet | Joe Security | ||
| Click to see the 11 entries | ||||
⊘No Sigma rule has matched
⊘No Snort rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |   |
|---|
| Source: | Virustotal: | Perma Link | ||
| Source: | ReversingLabs: | |||
| Source: | Virustotal: | Perma Link | ||
| Source: | Joe Sandbox ML: | ||
| Source: | Static PE information: | ||
| Source: | Code function: | ||
Networking | |
|---|
| Source: | Network Connect: | ||
| Source: | ASN Name: | ||
| Source: | IP Address: | ||
| Source: | TCP traffic: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | TCP traffic detected without corresponding DNS query: | ||
| Source: | String found in binary or memory: | ||
| Source: | String found in binary or memory: | ||
| Source: | String found in binary or memory: | ||