| File name: | text.exe |
| Full analysis: | https://app.any.run/tasks/6adbae4f-3b94-4a0f-9284-99f12b61452a |
| 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 30, 2024, 16:04:23 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | AF264D526D6FF4719CE21B4D3934DA9D |
| SHA1: | D267FE3A560DA64D04755C9EEFD685217A496829 |
| SHA256: | 5E23F1C6B2FE7A9105B94DD70A2771DFA05D4A9ADCEDA9B14EFD72FDDB6A9C8A |
| SSDEEP: | 12288:dcgCzNHJj96xfKJStJkRm3bYXob0AnmFMcaGQxkZVVVVVVVVVAtVVVUvqGq9:UQKgLIQmFuGQxklvqT9 |
MALICIOUS
Drops the executable file immediately after the start
- text.exe (PID: 1392)
- Server.exe (PID: 3988)
- njrat.exe (PID: 584)
Connects to the CnC server
- njrat.exe (PID: 584)
NJRAT has been detected (SURICATA)
- njrat.exe (PID: 584)
NJRAT has been detected (YARA)
- njrat.exe (PID: 584)
Create files in the Startup directory
- njrat.exe (PID: 584)
NjRAT is detected
- njrat.exe (PID: 584)
Changes the autorun value in the registry
- njrat.exe (PID: 584)
SUSPICIOUS
Executable content was dropped or overwritten
- text.exe (PID: 1392)
- Server.exe (PID: 3988)
- njrat.exe (PID: 584)
Start notepad (likely ransomware note)
- text.exe (PID: 1392)
Reads the Internet Settings
- text.exe (PID: 1392)
- Server.exe (PID: 3988)
Starts itself from another location
- Server.exe (PID: 3988)
Uses TASKKILL.EXE to kill process
- njrat.exe (PID: 584)
Uses NETSH.EXE to add a firewall rule or allowed programs
- njrat.exe (PID: 584)
Connects to unusual port
- njrat.exe (PID: 584)
INFO
Checks supported languages
- text.exe (PID: 1392)
- Server.exe (PID: 3988)
- njrat.exe (PID: 584)
Reads the computer name
- text.exe (PID: 1392)
- Server.exe (PID: 3988)
- njrat.exe (PID: 584)
Create files in a temporary directory
- text.exe (PID: 1392)
Creates files or folders in the user directory
- Server.exe (PID: 3988)
- njrat.exe (PID: 584)
Reads the machine GUID from the registry
- Server.exe (PID: 3988)
- njrat.exe (PID: 584)
Reads Environment values
- njrat.exe (PID: 584)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
NjRat
(PID) Process(584) njrat.exe
C25.tcp.eu.ngrok.io
Ports10490
Botnetanonim
Options
Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\483ee554fdf3ef8f1a517af42dc67ab2
Splitter|'|'|
Versionim523
TRiD
| .exe | | | Win32 Executable (generic) (52.9) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (23.5) |
| .exe | | | DOS Executable Generic (23.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:10:03 09:51:19+02:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 14.33 |
| CodeSize: | 214528 |
| InitializedDataSize: | 119296 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x21d50 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Total processes
44
Monitored processes
6
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 584 | "C:\Users\admin\AppData\Roaming\njrat.exe" | C:\Users\admin\AppData\Roaming\njrat.exe | Server.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
NjRat(PID) Process(584) njrat.exe C25.tcp.eu.ngrok.io Ports10490 Botnetanonim Options Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\483ee554fdf3ef8f1a517af42dc67ab2 Splitter|'|'| Versionim523 | |||||||||||||||
| 1392 | "C:\Users\admin\AppData\Local\Temp\text.exe" | C:\Users\admin\AppData\Local\Temp\text.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 1408 | taskkill /F /IM Exsample.exe | C:\Windows\System32\taskkill.exe | — | njrat.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Terminates Processes Exit code: 128 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3456 | "C:\Windows\system32\NOTEPAD.EXE" C:\Users\admin\AppData\Local\Temp\text.txt | C:\Windows\System32\notepad.exe | — | text.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3472 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Roaming\njrat.exe" "njrat.exe" ENABLE | C:\Windows\System32\netsh.exe | — | njrat.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
| |||||||||||||||
| 3988 | "C:\Users\admin\AppData\Local\Temp\Server.exe" | C:\Users\admin\AppData\Local\Temp\Server.exe | text.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
Total events
2 816
Read events
2 588
Write events
228
Delete events
0
Modification events
| (PID) Process: | (1392) text.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (1392) text.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (1392) text.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (1392) text.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (3988) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (3988) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (3988) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (3988) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (584) njrat.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (3472) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
3
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1392 | text.exe | C:\Users\admin\AppData\Local\Temp\Server.exe | executable | |
MD5:E9121F7F0D64F5061CF6744E880259C9 | SHA256:DB5BF998DD96A576CDED441727798FE5DE7DD36A51559F82D291F09F29937B0E | |||
| 584 | njrat.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\483ee554fdf3ef8f1a517af42dc67ab2.exe | executable | |
MD5:E9121F7F0D64F5061CF6744E880259C9 | SHA256:DB5BF998DD96A576CDED441727798FE5DE7DD36A51559F82D291F09F29937B0E | |||
| 1392 | text.exe | C:\Users\admin\AppData\Local\Temp\text.txt | text | |
MD5:974C287F7364D2E7BDF1E82223D07CBF | SHA256:547A21EA12ED4C217A0402AD3F50B943EBCDF337D8C5B2C1E8C297D4AC330EF3 | |||
| 3988 | Server.exe | C:\Users\admin\AppData\Roaming\njrat.exe | executable | |
MD5:E9121F7F0D64F5061CF6744E880259C9 | SHA256:DB5BF998DD96A576CDED441727798FE5DE7DD36A51559F82D291F09F29937B0E | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
5
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 | 192.168.100.255:138 | — | — | — | unknown |
4 | System | 192.168.100.255:137 | — | — | — | unknown |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
584 | njrat.exe | 3.67.161.133:10490 | 5.tcp.eu.ngrok.io | AMAZON-02 | DE | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
5.tcp.eu.ngrok.io |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Misc activity | ET INFO DNS Query to a *.ngrok domain (ngrok.io) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
3 ETPRO signatures available at the full report