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Windows
Analysis Report
nZNmWqwnpr.dll
Overview
General Information
| Sample Name: | nZNmWqwnpr.dll |
| Analysis ID: | 631910 |
| MD5: | 828a9b1007dc45671d8a58e240c7c973 |
| SHA1: | 8214993bb314d0f4c1889e507f88beeb3f6e5b63 |
| SHA256: | b59f16ee5e524814316a8be8ef54ea02f9a496267555e65eeb585e4ade85ffec |
| Tags: | exetrojan |
| Infos: |  |
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Detection
Emotet
| Score: | 76 |
| 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)
Changes security center settings (notifications, updates, antivirus, firewall)
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
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
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
Sample execution stops while process was sleeping (likely an evasion)
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
AV process strings found (often used to terminate AV products)
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: 6300 cmdline: loaddll64. exe "C:\Us ers\user\D esktop\nZN mWqwnpr.dl l" MD5: 4E8A40CAD6CCC047914E3A7830A2D8AA) 
cmd.exe (PID: 6308 cmdline: cmd.exe /C rundll32. exe "C:\Us ers\user\D esktop\nZN mWqwnpr.dl l",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F) 
rundll32.exe (PID: 6392 cmdline: rundll32.e xe "C:\Use rs\user\De sktop\nZNm Wqwnpr.dll ",#1 MD5: 73C519F050C20580F8A62C849D49215A) 
WerFault.exe (PID: 6560 cmdline: C:\Windows \system32\ WerFault.e xe -u -p 6 392 -s 324 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0) - regsvr32.exe (PID: 6352 cmdline:
regsvr32.e xe /s C:\U sers\user\ Desktop\nZ NmWqwnpr.d ll MD5: D78B75FC68247E8A63ACBA846182740E) - regsvr32.exe (PID: 6508 cmdline:
C:\Windows \system32\ regsvr32.e xe "C:\Win dows\syste m32\NhxQyx UKKifP\KOs PrJ.dll" MD5: D78B75FC68247E8A63ACBA846182740E) - rundll32.exe (PID: 6400 cmdline:
rundll32.e xe C:\User s\user\Des ktop\nZNmW qwnpr.dll, AddIn_File Time MD5: 73C519F050C20580F8A62C849D49215A) - WerFault.exe (PID: 6580 cmdline:
C:\Windows \system32\ WerFault.e xe -u -p 6 400 -s 316 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0) - rundll32.exe (PID: 6472 cmdline:
rundll32.e xe C:\User s\user\Des ktop\nZNmW qwnpr.dll, AddIn_Syst emTime MD5: 73C519F050C20580F8A62C849D49215A) - rundll32.exe (PID: 6600 cmdline:
rundll32.e xe C:\User s\user\Des ktop\nZNmW qwnpr.dll, DllRegiste rServer MD5: 73C519F050C20580F8A62C849D49215A)
- svchost.exe (PID: 6732 cmdline:
C:\Windows \System32\ svchost.ex e -k Local SystemNetw orkRestric ted -p -s NcbService MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6816 cmdline:
c:\windows \system32\ svchost.ex e -k local service -p -s CDPSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6880 cmdline:
c:\windows \system32\ svchost.ex e -k netwo rkservice -p -s DoSv c MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6968 cmdline:
C:\Windows \System32\ svchost.ex e -k Netwo rkService -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- SgrmBroker.exe (PID: 7068 cmdline:
C:\Windows \system32\ SgrmBroker .exe MD5: D3170A3F3A9626597EEE1888686E3EA6)
- svchost.exe (PID: 7112 cmdline:
c:\windows \system32\ svchost.ex e -k local servicenet workrestri cted -p -s wscsvc MD5: 32569E403279B3FD2EDB7EBD036273FA) 
MpCmdRun.exe (PID: 7036 cmdline: "C:\Progra m Files\Wi ndows Defe nder\mpcmd run.exe" - wdenable MD5: A267555174BFA53844371226F482B86B) - conhost.exe (PID: 4780 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
- svchost.exe (PID: 1272 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p -s B ITS MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6452 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6764 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 4116 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 3876 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: | 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: | ||