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Windows
Analysis Report
IU28r0EZFA.dll
Overview
General Information
Detection
Wannacry
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Yara detected Wannacry ransomware
Antivirus detection for URL or domain
Antivirus detection for dropped file
Snort IDS alert for network traffic
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for dropped file
Query firmware table information (likely to detect VMs)
Machine Learning detection for sample
Connects to many IPs within the same subnet mask (likely port scanning)
Connects to many different private IPs (likely to spread or exploit)
Drops executables to the windows directory (C:\Windows) and starts them
Changes security center settings (notifications, updates, antivirus, firewall)
Machine Learning detection for dropped file
Connects to many different private IPs via SMB (likely to spread or exploit)
Antivirus or Machine Learning detection for unpacked file
Contains functionality to query locales information (e.g. system language)
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)
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
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
Drops PE files
Tries to load missing DLLs
Uses a known web browser user agent for HTTP communication
Drops PE files to the windows directory (C:\Windows)
Dropped file seen in connection with other malware
Creates a process in suspended mode (likely to inject code)
Uses 32bit PE files
Yara signature match
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Deletes files inside the Windows folder
Creates files inside the system directory
Internet Provider seen in connection with other malware
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Contains functionality to communicate with device drivers
Found dropped PE file which has not been started or loaded
PE file contains executable resources (Code or Archives)
Searches for user specific document files
Creates a DirectInput object (often for capturing keystrokes)
AV process strings found (often used to terminate AV products)
PE file does not import any functions
File is packed with WinRar
Connects to several IPs in different countries
Queries disk information (often used to detect virtual machines)
Classification
- System is w10x64
- loaddll32.exe (PID: 5368 cmdline:
loaddll32. exe "C:\Us ers\user\D esktop\IU2 8r0EZFA.dl l" MD5: 1F562FBF37040EC6C43C8D5EF619EA39) - conhost.exe (PID: 5372 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496) - cmd.exe (PID: 5516 cmdline:
cmd.exe /C rundll32. exe "C:\Us ers\user\D esktop\IU2 8r0EZFA.dl l",#1 MD5: F3BDBE3BB6F734E357235F4D5898582D) - rundll32.exe (PID: 5416 cmdline:
rundll32.e xe "C:\Use rs\user\De sktop\IU28 r0EZFA.dll ",#1 MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D) - mssecsvr.exe (PID: 5412 cmdline:
C:\WINDOWS \mssecsvr. exe MD5: 727563948E9A258D34E604AC7819FC00) - tasksche.exe (PID: 3200 cmdline:
C:\WINDOWS \tasksche. exe /i MD5: 84806E27AD3982217395D30B692077FC) - rundll32.exe (PID: 5500 cmdline:
rundll32.e xe C:\User s\user\Des ktop\IU28r 0EZFA.dll, PlayGame MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D) - rundll32.exe (PID: 1972 cmdline:
rundll32.e xe "C:\Use rs\user\De sktop\IU28 r0EZFA.dll ",PlayGame MD5: D7CA562B0DB4F4DD0F03A89A1FDAD63D) - mssecsvr.exe (PID: 5940 cmdline:
C:\WINDOWS \mssecsvr. exe MD5: 727563948E9A258D34E604AC7819FC00) - tasksche.exe (PID: 4652 cmdline:
C:\WINDOWS \tasksche. exe /i MD5: 84806E27AD3982217395D30B692077FC)
- mssecsvr.exe (PID: 4764 cmdline:
C:\WINDOWS \mssecsvr. exe -m sec urity MD5: 727563948E9A258D34E604AC7819FC00)
- svchost.exe (PID: 2224 cmdline:
c:\windows \system32\ svchost.ex e -k local service -p -s CDPSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 3340 cmdline:
c:\windows \system32\ svchost.ex e -k netwo rkservice -p -s DoSv c MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 1576 cmdline:
C:\Windows \System32\ svchost.ex e -k Netwo rkService -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- SgrmBroker.exe (PID: 3244 cmdline:
C:\Windows \system32\ SgrmBroker .exe MD5: D3170A3F3A9626597EEE1888686E3EA6)
- svchost.exe (PID: 4112 cmdline:
c:\windows \system32\ svchost.ex e -k netsv cs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
- svchost.exe (PID: 3868 cmdline:
c:\windows \system32\ svchost.ex e -k local servicenet workrestri cted -p -s wscsvc MD5: 32569E403279B3FD2EDB7EBD036273FA) - MpCmdRun.exe (PID: 4572 cmdline:
"C:\Progra m Files\Wi ndows Defe nder\mpcmd run.exe" - wdenable MD5: A267555174BFA53844371226F482B86B) - conhost.exe (PID: 5248 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
- svchost.exe (PID: 3096 cmdline:
c:\windows \system32\ svchost.ex e -k wusvc s -p -s Wa aSMedicSvc MD5: 32569E403279B3FD2EDB7EBD036273FA)
- cleanup
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
WannaCry_Ransomware | Detects WannaCry Ransomware | Florian Roth (with the help of binar.ly) |
| |
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
WannaCry_Ransomware | Detects WannaCry Ransomware | Florian Roth (with the help of binar.ly) |
| |
WannaCry_Ransomware_Gen | Detects WannaCry Ransomware | Florian Roth (based on rule by US CERT) |
| |
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security | ||
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security | ||
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security | ||
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security | ||
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security | ||
Click to see the 12 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
WannaCry_Ransomware | Detects WannaCry Ransomware | Florian Roth (with the help of binar.ly) |
| |
WannaCry_Ransomware | Detects WannaCry Ransomware | Florian Roth (with the help of binar.ly) |
| |
WannaCry_Ransomware | Detects WannaCry Ransomware | Florian Roth (with the help of binar.ly) |
| |
WannaCry_Ransomware_Gen | Detects WannaCry Ransomware | Florian Roth (based on rule by US CERT) |
| |
JoeSecurity_Wannacry | Yara detected Wannacry ransomware | Joe Security | ||
Click to see the 53 entries |
⊘No Sigma rule has matched
Timestamp: | 192.168.2.68.8.8.863229532830018 12/22/22-10:03:15.700788 |
SID: | 2830018 |
Source Port: | 63229 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.68.8.8.862910532830018 12/22/22-10:03:15.117161 |
SID: | 2830018 |
Source Port: | 62910 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | A Network Trojan was detected |
Timestamp: | 192.168.2.68.8.8.859082532830018 12/22/22-10:03:13.716060 |
SID: | 2830018 |
Source Port: | 59082 |
Destination Port: | 53 |
Protocol: | UDP |
Classtype: | A Network Trojan was detected |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link |
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Exploits |
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Source: | TCP traffic: | Jump to behavior | ||
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Source: | Static PE information: |
Source: | HTTPS traffic detected: | ||
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Source: | Binary string: | ||
Source: | Binary string: |
Source: | Code function: | 9_2_00409476 | |
Source: | Code function: | 9_2_0040DE5E |
Networking |
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