| File name: | WmiPrvSE.exe |
| Full analysis: | https://app.any.run/tasks/20b3f5a7-d945-4d78-b4a9-1c7da6bc0b4e |
| Verdict: | Malicious activity |
| Threats: | njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world. |
| Analysis date: | June 25, 2021, 19:35:27 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 82279EC74A7778D4DB5C9A5293662600 |
| SHA1: | 5F5565B0C968136550EA1F50C1B23EA2D9BA13DE |
| SHA256: | 161A3F8ACF3351995948EEE3C3F5C5ADD272BED6AD1949CF692EF13CE05D1917 |
| SSDEEP: | 768:4UC/bKNv48nHquLEoZ6fFgdVP8eA7dNlgJtmq82:4dmNv4ALEoZ6fFgdVkeUNQmqt |
MALICIOUS
Connects to CnC server
- WmiPrvSE.exe (PID: 3304)
NJRAT was detected
- WmiPrvSE.exe (PID: 3304)
SUSPICIOUS
Checks supported languages
- WmiPrvSE.exe (PID: 3304)
Reads the computer name
- WmiPrvSE.exe (PID: 3304)
Uses NETSH.EXE for network configuration
- WmiPrvSE.exe (PID: 3304)
Reads Environment values
- netsh.exe (PID: 116)
INFO
Reads the computer name
- netsh.exe (PID: 116)
Checks supported languages
- netsh.exe (PID: 116)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| AssemblyVersion: | 1.0.0.0 |
|---|---|
| ProductVersion: | 1.0.0.0 |
| ProductName: | WmiPrvSE |
| OriginalFileName: | WmiPrvSE.exe |
| LegalTrademarks: | - |
| LegalCopyright: | Copyright © 2021 |
| InternalName: | WmiPrvSE.exe |
| FileVersion: | 1.0.0.0 |
| FileDescription: | WmiPrvSE |
| CompanyName: | - |
| Comments: | - |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 6 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x929e |
| UninitializedDataSize: | - |
| InitializedDataSize: | 2048 |
| CodeSize: | 29696 |
| LinkerVersion: | 80 |
| PEType: | PE32 |
| TimeStamp: | 2081:12:25 20:42:15+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 19-Nov-1945 13:13:59 |
| Debug artifacts: |
|
| Comments: | - |
| CompanyName: | - |
| FileDescription: | WmiPrvSE |
| FileVersion: | 1.0.0.0 |
| InternalName: | WmiPrvSE.exe |
| LegalCopyright: | Copyright © 2021 |
| LegalTrademarks: | - |
| OriginalFilename: | WmiPrvSE.exe |
| ProductName: | WmiPrvSE |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 19-Nov-1945 13:13:59 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x000072A4 | 0x00007400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.71158 |
.rsrc | 0x0000A000 | 0x000005AC | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.0806 |
.reloc | 0x0000C000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
36
Monitored processes
2
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 116 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\WmiPrvSE.exe" "WmiPrvSE.exe" ENABLE | C:\Windows\system32\netsh.exe | — | WmiPrvSE.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Network Command Shell Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3304 | "C:\Users\admin\AppData\Local\Temp\WmiPrvSE.exe" | C:\Users\admin\AppData\Local\Temp\WmiPrvSE.exe | Explorer.EXE | ||||||||||||
User: admin Integrity Level: MEDIUM Description: WmiPrvSE Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
Total events
752
Read events
687
Write events
65
Delete events
0
Modification events
| (PID) Process: | (3304) WmiPrvSE.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (3304) WmiPrvSE.exe | Key: | HKEY_CURRENT_USER\Environment |
| Operation: | write | Name: | SEE_MASK_NOZONECHECKS |
Value: 1 | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\dhcpqec.dll,-100 |
Value: DHCP Quarantine Enforcement Client | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\dhcpqec.dll,-101 |
Value: Provides DHCP based enforcement for NAP | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\dhcpqec.dll,-103 |
Value: 1.0 | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\dhcpqec.dll,-102 |
Value: Microsoft Corporation | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\napipsec.dll,-1 |
Value: IPsec Relying Party | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\napipsec.dll,-2 |
Value: Provides IPsec based enforcement for Network Access Protection | |||
| (PID) Process: | (116) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16B\52C64B7E |
| Operation: | write | Name: | @%SystemRoot%\system32\napipsec.dll,-4 |
Value: 1.0 | |||
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
DNS requests
1
Threats
6
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3304 | WmiPrvSE.exe | 141.255.145.139:6969 | oldkampfer.ddns.net | Lost Oasis SARL | NL | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
oldkampfer.ddns.net |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
— | — | A Network Trojan was detected | ET TROJAN Generic njRAT/Bladabindi CnC Activity (ll) |
4 ETPRO signatures available at the full report