analyze malware
- Huge database of samples and IOCs
- Custom VM setup
- Unlimited submissions
- Interactive approach
| File name: | System.exe |
| Full analysis: | https://app.any.run/tasks/e4e12e3a-68c1-4c70-8b61-c6b01a7603d2 |
| 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: | March 14, 2019, 19:55:37 |
| 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: | 3E5666720773443A52A362685AC15151 |
| SHA1: | 9295DB331A8A0BE341283F5AD61EC4D3012F63DC |
| SHA256: | 067C930E219DA0B0C7DF46187ABC1847D05F0C9391F2A3967E84DE7E649972CE |
| SSDEEP: | 3072:hVn1sYiBkGTW2Gnx/aBEMaqES9Hty2qEYBKGb:hJ1sYTGgxyaV6ty2 |
MALICIOUS
NJRAT was detected
- WindowsUpdate.exe (PID: 3292)
Writes to a start menu file
- WindowsUpdate.exe (PID: 3292)
Connects to CnC server
- WindowsUpdate.exe (PID: 3292)
Changes the autorun value in the registry
- WindowsUpdate.exe (PID: 3292)
SUSPICIOUS
Executable content was dropped or overwritten
- System.exe (PID: 2960)
- WindowsUpdate.exe (PID: 3292)
Connects to unusual port
- WindowsUpdate.exe (PID: 3292)
Starts itself from another location
- System.exe (PID: 2960)
Creates files in the user directory
- WindowsUpdate.exe (PID: 3292)
INFO
No info indicators.
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: | System |
| OriginalFileName: | System.exe |
| LegalCopyright: | Copyright © 2019 |
| InternalName: | System.exe |
| FileVersion: | 1.0.0.0 |
| FileDescription: | System |
| Comments: | Microsoft |
| 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: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x19e96 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 101376 |
| CodeSize: | 98304 |
| LinkerVersion: | 11 |
| PEType: | PE32 |
| TimeStamp: | 2019:03:14 19:51:01+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 14-Mar-2019 18:51:01 |
| Debug artifacts: |
|
| Comments: | Microsoft |
| FileDescription: | System |
| FileVersion: | 1.0.0.0 |
| InternalName: | System.exe |
| LegalCopyright: | Copyright © 2019 |
| OriginalFilename: | System.exe |
| ProductName: | System |
| 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: | 14-Mar-2019 18:51:01 |
| 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 | 0x00017E9C | 0x00018000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.84155 |
.reloc | 0x0001A000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
.rsrc | 0x0001C000 | 0x00000A4C | 0x00000C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.64661 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
2 | 2.71419 | 744 | UNKNOWN | UNKNOWN | RT_ICON |
3 | 2.53612 | 296 | UNKNOWN | UNKNOWN | RT_ICON |
32512 | 2.47702 | 34 | UNKNOWN | UNKNOWN | RT_GROUP_ICON |
Imports
mscoree.dll |
Total processes
31
Monitored processes
2
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2960 | "C:\Users\admin\AppData\Local\Temp\System.exe" | C:\Users\admin\AppData\Local\Temp\System.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Description: System Exit code: 0 Version: 1.0.0.0 | ||||
| 3292 | "C:\Users\admin\AppData\Local\Temp\WindowsUpdate.exe" | C:\Users\admin\AppData\Local\Temp\WindowsUpdate.exe | System.exe | |
User: admin Integrity Level: MEDIUM Description: System Version: 1.0.0.0 | ||||
Total events
698
Read events
406
Write events
292
Delete events
0
Modification events
| (PID) Process: | (2960) System.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (2960) System.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2960) System.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3292) WindowsUpdate.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (3292) WindowsUpdate.exe | Key: | HKEY_CURRENT_USER\Environment |
| Operation: | write | Name: | SEE_MASK_NOZONECHECKS |
Value: 1 | |||
| (PID) Process: | (3292) WindowsUpdate.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Windows Center |
Value: "C:\Users\admin\AppData\Local\Temp\WindowsUpdate.exe" .. | |||
Executable files
2
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3292 | WindowsUpdate.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Center.exe | executable | |
MD5:3E5666720773443A52A362685AC15151 | SHA256:067C930E219DA0B0C7DF46187ABC1847D05F0C9391F2A3967E84DE7E649972CE | |||
| 2960 | System.exe | C:\Users\admin\AppData\Local\Temp\WindowsUpdate.exe | executable | |
MD5:3E5666720773443A52A362685AC15151 | SHA256:067C930E219DA0B0C7DF46187ABC1847D05F0C9391F2A3967E84DE7E649972CE | |||
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
0
Threats
0
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 |
|---|---|---|---|---|---|---|
3292 | WindowsUpdate.exe | 141.255.146.126:5552 | — | Lost Oasis SARL | NL | malicious |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
3292 | WindowsUpdate.exe | A Network Trojan was detected | MALWARE [PTsecurity] njRAT.Gen RAT outbound connection |
78 ETPRO signatures available at the full report