| File name: | Windows Defender SmartScreen.exe |
| Full analysis: | https://app.any.run/tasks/35ce9872-b8b7-49f2-a497-6b5ea7bce284 |
| 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: | January 15, 2024, 21:22:34 |
| 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: | 3C53A6D0CEDFA7A02A447F9013B7CE33 |
| SHA1: | 423B05EEBF191B426C4D114326C0415BB57298C0 |
| SHA256: | 194F230BC42417B980A039F5AD768E874429F7CF021F3BEA8D0119BD0D423BC4 |
| SSDEEP: | 768:zsPAV91XfJTQcUtECtrn2TiWVI31PSfCVBh/5iajVQNPl1Rz4Rk3psOdMTDBto:gvtECtjaVI3gfCLHuZl1dDdSTDP |
MALICIOUS
Drops the executable file immediately after the start
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
Create files in the Startup directory
- Windows Defender SmartScreen.exe (PID: 2040)
NJRAT has been detected (YARA)
- svchost.exe (PID: 1836)
Connects to the CnC server
- svchost.exe (PID: 1836)
NJRAT has been detected (SURICATA)
- svchost.exe (PID: 1836)
SUSPICIOUS
Uses NETSH.EXE to delete a firewall rule or allowed programs
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
Reads the Internet Settings
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
The process creates files with name similar to system file names
- Windows Defender SmartScreen.exe (PID: 2040)
Starts itself from another location
- Windows Defender SmartScreen.exe (PID: 2040)
Executable content was dropped or overwritten
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
Uses NETSH.EXE to add a firewall rule or allowed programs
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
The process executes via Task Scheduler
- StUpdate.exe (PID: 1768)
- StUpdate.exe (PID: 680)
Connects to unusual port
- svchost.exe (PID: 1836)
Reads settings of System Certificates
- filezilla.exe (PID: 2836)
INFO
Reads the computer name
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
- StUpdate.exe (PID: 680)
- Explower.exe (PID: 2788)
- Explower.exe (PID: 1000)
- Explower.exe (PID: 1192)
- Explower.exe (PID: 2372)
- filezilla.exe (PID: 2836)
- tmpF568.tmp.exe (PID: 2356)
Checks supported languages
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
- StUpdate.exe (PID: 680)
- Explower.exe (PID: 1000)
- Explower.exe (PID: 2788)
- Explower.exe (PID: 1192)
- Explower.exe (PID: 2372)
- filezilla.exe (PID: 2836)
- tmpF568.tmp.exe (PID: 2356)
Create files in a temporary directory
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
- StUpdate.exe (PID: 680)
- Explower.exe (PID: 2788)
- Explower.exe (PID: 1000)
- Explower.exe (PID: 2372)
- Explower.exe (PID: 1192)
Creates files or folders in the user directory
- Windows Defender SmartScreen.exe (PID: 2040)
- filezilla.exe (PID: 2836)
Reads the machine GUID from the registry
- Windows Defender SmartScreen.exe (PID: 2040)
- svchost.exe (PID: 1836)
- StUpdate.exe (PID: 680)
- Explower.exe (PID: 1000)
- Explower.exe (PID: 2788)
- Explower.exe (PID: 1192)
- Explower.exe (PID: 2372)
- filezilla.exe (PID: 2836)
- tmpF568.tmp.exe (PID: 2356)
Reads Environment values
- svchost.exe (PID: 1836)
Manual execution by a user
- Explower.exe (PID: 2788)
- Explower.exe (PID: 1000)
- Explower.exe (PID: 1192)
- filezilla.exe (PID: 2836)
- Explower.exe (PID: 2372)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
NjRat
(PID) Process(1836) svchost.exe
Version0.7d
Options
Splitter|'|'|
Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\1266268bbc3304791d302164061ad105
BotnetRuntime Broker
Ports2231
C2internet-guestbook.gl.at.ply.gg
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
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:01:15 22:22:10+01:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 94208 |
| InitializedDataSize: | 512 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x18f3e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Total processes
61
Monitored processes
17
Malicious processes
2
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2040 | "C:\Users\admin\AppData\Local\Temp\Windows Defender SmartScreen.exe" | C:\Users\admin\AppData\Local\Temp\Windows Defender SmartScreen.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 1288 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\Windows Defender SmartScreen.exe" "Windows Defender SmartScreen.exe" ENABLE | C:\Windows\System32\netsh.exe | — | Windows Defender SmartScreen.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Network Command Shell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2020 | netsh firewall delete allowedprogram "C:\Users\admin\AppData\Local\Temp\Windows Defender SmartScreen.exe" | C:\Windows\System32\netsh.exe | — | Windows Defender SmartScreen.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
| |||||||||||||||
| 268 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\Windows Defender SmartScreen.exe" "Windows Defender SmartScreen.exe" ENABLE | C:\Windows\System32\netsh.exe | — | Windows Defender SmartScreen.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Network Command Shell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1836 | "C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe" | C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe | Windows Defender SmartScreen.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
NjRat(PID) Process(1836) svchost.exe Version0.7d Options Splitter|'|'| Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\1266268bbc3304791d302164061ad105 BotnetRuntime Broker Ports2231 C2internet-guestbook.gl.at.ply.gg | |||||||||||||||
| 1792 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe" "svchost.exe" ENABLE | C:\Windows\System32\netsh.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Network Command Shell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2312 | netsh firewall delete allowedprogram "C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe" | C:\Windows\System32\netsh.exe | — | svchost.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
| |||||||||||||||
| 2344 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe" "svchost.exe" ENABLE | C:\Windows\System32\netsh.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Network Command Shell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2300 | schtasks /create /sc minute /mo 1 /tn StUpdate /tr C:\Users\admin\AppData\Local\Temp/StUpdate.exe | C:\Windows\System32\schtasks.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1768 | C:\Users\admin\AppData\Local\Temp/StUpdate.exe | C:\Users\admin\AppData\Local\Temp\StUpdate.exe | — | taskeng.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221226540 Modules
| |||||||||||||||
Total events
7 798
Read events
7 505
Write events
293
Delete events
0
Modification events
| (PID) Process: | (1288) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2020) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (268) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2040) Windows Defender SmartScreen.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2040) Windows Defender SmartScreen.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2040) Windows Defender SmartScreen.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2040) Windows Defender SmartScreen.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (1836) svchost.exe | Key: | HKEY_CURRENT_USER\Environment |
| Operation: | write | Name: | SEE_MASK_NOZONECHECKS |
Value: 1 | |||
| (PID) Process: | (1792) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2344) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
12
Suspicious files
0
Text files
28
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2836 | filezilla.exe | C:\Users\admin\AppData\Roaming\FileZilla\layout.xml | xml | |
MD5:2C67357412FE5428D2EB67E2178925FA | SHA256:6E8BEE236C7BB6E2CD249AF7449B0F08AFCEBEBE4140CF818750E4489D570B69 | |||
| 2836 | filezilla.exe | C:\Users\admin\AppData\Local\FileZilla\default_speedlimits16x16.png | image | |
MD5:EF56A56C6385B8E73B8DF483FB2B7286 | SHA256:8C31386474FBFEC93A303DF0ED1B2D6029CFFD648604A1FB91A9969107D2186F | |||
| 2836 | filezilla.exe | C:\Users\admin\AppData\Local\FileZilla\default_leds24x24.png | image | |
MD5:3CDB1F496431271DB6C442BC0DFA4C87 | SHA256:E9DB40BC4ACAF1B3D7C9262B6EB616C8C29DB3E34D4006443D36F1794553330E | |||
| 2040 | Windows Defender SmartScreen.exe | C:\Users\admin\AppData\Roaming\app | text | |
MD5:AA3CCE4F6C83D5ADFCFC45934B274CC6 | SHA256:57A8FF317E913B7E08C0A1758997ED0FFC2F1ABA0A3B3310C7697BC207FD15E5 | |||
| 2040 | Windows Defender SmartScreen.exe | C:\Users\admin\Desktop\Explower.exe | executable | |
MD5:3C53A6D0CEDFA7A02A447F9013B7CE33 | SHA256:194F230BC42417B980A039F5AD768E874429F7CF021F3BEA8D0119BD0D423BC4 | |||
| 1836 | svchost.exe | C:\Users\admin\AppData\Local\Temp\StUpdate.exe | executable | |
MD5:3C53A6D0CEDFA7A02A447F9013B7CE33 | SHA256:194F230BC42417B980A039F5AD768E874429F7CF021F3BEA8D0119BD0D423BC4 | |||
| 2040 | Windows Defender SmartScreen.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\History\Explower.exe | executable | |
MD5:3C53A6D0CEDFA7A02A447F9013B7CE33 | SHA256:194F230BC42417B980A039F5AD768E874429F7CF021F3BEA8D0119BD0D423BC4 | |||
| 2040 | Windows Defender SmartScreen.exe | C:\Users\admin\Documents\Explower.exe | executable | |
MD5:3C53A6D0CEDFA7A02A447F9013B7CE33 | SHA256:194F230BC42417B980A039F5AD768E874429F7CF021F3BEA8D0119BD0D423BC4 | |||
| 2040 | Windows Defender SmartScreen.exe | C:\Users\admin\AppData\Local\Explower.exe | executable | |
MD5:3C53A6D0CEDFA7A02A447F9013B7CE33 | SHA256:194F230BC42417B980A039F5AD768E874429F7CF021F3BEA8D0119BD0D423BC4 | |||
| 2040 | Windows Defender SmartScreen.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\Explower.exe | executable | |
MD5:3C53A6D0CEDFA7A02A447F9013B7CE33 | SHA256:194F230BC42417B980A039F5AD768E874429F7CF021F3BEA8D0119BD0D423BC4 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
3
DNS requests
1
Threats
5
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 |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | unknown |
1836 | svchost.exe | 147.185.221.18:2231 | internet-guestbook.gl.at.ply.gg | PLAYIT-GG | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
internet-guestbook.gl.at.ply.gg |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET INFO playit .gg Tunneling Domain in DNS Lookup |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback (Remote Desktop) |
— | — | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
1 ETPRO signatures available at the full report