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Windows
Analysis Report
vur7t4SumQ.dll
Overview
General Information
| Sample Name: | vur7t4SumQ.dll |
| Analysis ID: | 626495 |
| MD5: | b4f74ea581aba7c9e44b4a0053d20bfe |
| SHA1: | eec25f21b828ae3aa2cb49dcd418855e98993ad7 |
| SHA256: | 91808c38624d6b8a14a9d86ce4e7fa9815ae08b359748873507db505255c2efe |
| 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)
Antivirus detection for URL or domain
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)
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
Found evasive API chain (may stop execution after checking a module file name)
JA3 SSL client fingerprint seen in connection with other malware
Contains functionality to dynamically determine API calls
HTTP GET or POST without a user agent
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)
Checks if the current process is being debugged
Registers a DLL
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Creates a process in suspended mode (likely to inject code)
Classification
- System is w10x64
loaddll64.exe (PID: 6964 cmdline: loaddll64. exe "C:\Us ers\user\D esktop\vur 7t4SumQ.dl l" MD5: 4E8A40CAD6CCC047914E3A7830A2D8AA) 
cmd.exe (PID: 7012 cmdline: cmd.exe /C rundll32. exe "C:\Us ers\user\D esktop\vur 7t4SumQ.dl l",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F) 
rundll32.exe (PID: 7036 cmdline: rundll32.e xe "C:\Use rs\user\De sktop\vur7 t4SumQ.dll ",#1 MD5: 73C519F050C20580F8A62C849D49215A) - regsvr32.exe (PID: 7024 cmdline:
regsvr32.e xe /s C:\U sers\user\ Desktop\vu r7t4SumQ.d ll MD5: D78B75FC68247E8A63ACBA846182740E) - regsvr32.exe (PID: 7160 cmdline:
C:\Windows \system32\ regsvr32.e xe "C:\Win dows\syste m32\QpRiew x\dKRLHbLQ XAMim.dll" MD5: D78B75FC68247E8A63ACBA846182740E) - rundll32.exe (PID: 7060 cmdline:
rundll32.e xe C:\User s\user\Des ktop\vur7t 4SumQ.dll, DllRegiste rServer MD5: 73C519F050C20580F8A62C849D49215A) - rundll32.exe (PID: 7104 cmdline:
rundll32.e xe C:\User s\user\Des ktop\vur7t 4SumQ.dll, DllUnregis terServer MD5: 73C519F050C20580F8A62C849D49215A) 
WerFault.exe (PID: 4236 cmdline: C:\Windows \system32\ WerFault.e xe -u -p 7 104 -s 336 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0)
- svchost.exe (PID: 6184 cmdline:
C:\Windows \System32\ svchost.ex e -k WerSv cGroup MD5: 32569E403279B3FD2EDB7EBD036273FA) - WerFault.exe (PID: 5832 cmdline:
C:\Windows \system32\ WerFault.e xe -pss -s 492 -p 71 04 -ip 710 4 MD5: 2AFFE478D86272288BBEF5A00BBEF6A0)
- svchost.exe (PID: 5712 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6496 cmdline:
C:\Windows \System32\ svchost.ex e -k Local SystemNetw orkRestric ted -p -s NcbService MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 7028 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 6340 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 1820 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 9 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 9 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: | Avira URL Cloud: | ||
| Source: | HTTPS traffic detected: | ||
| Source: | Static PE information: | ||
| Source: | Binary string: | ||
| Source: | Binary string: | ||
| Source: | Code function: | 6_2_000000018000D26C | |
Networking | |
|---|
| Source: | Network Connect: | Jump to behavior | ||
| Source: | ASN Name: | ||
| Source: | JA3 fingerprint: | ||
| Source: | HTTP traffic detected: | ||
| Source: | IP Address: | ||
| Source: | Network traffic detected: | ||
| Source: | Network traffic detected: | ||
| 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: | ||