| File name: | test.exe |
| Full analysis: | https://app.any.run/tasks/11d3a3bb-fd4f-4f53-895e-e5a8134b507b |
| 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: | April 01, 2023, 18:21:29 |
| 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: | 18D62DE0CFE384B4CE55E027AD530120 |
| SHA1: | 1752916DA7D985DE426BFE9E0F1E8FCDA3EC15A0 |
| SHA256: | F6099D05C7AE389B0B7A8E0C6F597DC7581EA287A4439A547D0A8982D8E16F04 |
| SSDEEP: | 1536:doRQ8oN36tGQviFw1M/piBnvAjfLteF3nLrB9z3niaF9bFS9vM:doRQ8oN36tGQviFCIABn0fWl9zyaF9bh |
MALICIOUS
NjRAT is detected
- Client.exe (PID: 3320)
- Client.exe (PID: 2128)
Create files in the Startup directory
- Client.exe (PID: 3320)
Uses Task Scheduler to run other applications
- Client.exe (PID: 3320)
Changes the autorun value in the registry
- Client.exe (PID: 3320)
NJRAT detected by memory dumps
- Client.exe (PID: 3320)
SUSPICIOUS
Reads the Internet Settings
- test.exe (PID: 1048)
Executable content was dropped or overwritten
- test.exe (PID: 1048)
- Client.exe (PID: 3320)
Connects to unusual port
- Client.exe (PID: 3320)
Starts itself from another location
- test.exe (PID: 1048)
Starts CMD.EXE for commands execution
- test.exe (PID: 1048)
Uses TASKKILL.EXE to kill process
- Client.exe (PID: 3320)
The process executes via Task Scheduler
- Client.exe (PID: 2128)
INFO
Checks supported languages
- test.exe (PID: 1048)
- Client.exe (PID: 3320)
- Client.exe (PID: 2128)
Reads the computer name
- test.exe (PID: 1048)
- Client.exe (PID: 3320)
- Client.exe (PID: 2128)
The process checks LSA protection
- test.exe (PID: 1048)
- Client.exe (PID: 3320)
- Client.exe (PID: 2128)
Creates files or folders in the user directory
- test.exe (PID: 1048)
- Client.exe (PID: 3320)
Reads the machine GUID from the registry
- test.exe (PID: 1048)
- Client.exe (PID: 3320)
- Client.exe (PID: 2128)
Reads Environment values
- Client.exe (PID: 3320)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
NjRat
(PID) Process(3320) Client.exe
C20.tcp.eu.ngrok.io
Ports6522
Botnetxmm
Options
Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\Client.exe
Splitter|Ghost|
Versionnull
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (45.7) |
|---|---|---|
| .exe | | | Win32 Executable MS Visual C++ (generic) (19.4) |
| .exe | | | Win64 Executable (generic) (17.2) |
| .scr | | | Windows screen saver (8.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (4.1) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x11bfe |
| UninitializedDataSize: | - |
| InitializedDataSize: | 1536 |
| CodeSize: | 65024 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| ImageFileCharacteristics: | Executable, 32-bit |
| TimeStamp: | 2023:04:01 18:21:04+00:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 01-Apr-2023 18:21:04 |
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: | 01-Apr-2023 18:21:04 |
| 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 | 0x0000FC04 | 0x0000FE00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.84626 |
.rsrc | 0x00012000 | 0x00000240 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.96554 |
.reloc | 0x00014000 | 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 | 4.96801 | 487 | Latin 1 / Western European | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
52
Monitored processes
11
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1048 | "C:\Users\admin\AppData\Local\Temp\test.exe" | C:\Users\admin\AppData\Local\Temp\test.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 2128 | C:\Users\admin\AppData\Roaming\Client.exe | C:\Users\admin\AppData\Roaming\Client.exe | taskeng.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 2468 | schtasks /delete /tn "РџРѕРёСЃРє" /f | C:\Windows\System32\schtasks.exe | — | Client.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2476 | schtasks /create /sc minute /mo 1 /tn "РџРѕРёСЃРє" /tr C:\Users\admin\AppData\Roaming\Client.exe | C:\Windows\System32\schtasks.exe | — | Client.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
| |||||||||||||||
| 3084 | taskkill /f im Wireshark.exe | C:\Windows\System32\taskkill.exe | — | Client.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Terminates Processes Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3320 | "C:\Users\admin\AppData\Roaming\Client.exe" | C:\Users\admin\AppData\Roaming\Client.exe | test.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
NjRat(PID) Process(3320) Client.exe C20.tcp.eu.ngrok.io Ports6522 Botnetxmm Options Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\Client.exe Splitter|Ghost| Versionnull | |||||||||||||||
| 3432 | "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\admin\AppData\Local\Temp\test.exe" | C:\Windows\System32\cmd.exe | — | test.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 3588 | choice /C Y /N /D Y /T 5 | C:\Windows\System32\choice.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Offers the user a choice Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3756 | schtasks /delete /tn "РџРѕРёСЃРє" /f | C:\Windows\System32\schtasks.exe | — | Client.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
| |||||||||||||||
| 3888 | taskkill /f im Wireshark.exe | C:\Windows\System32\taskkill.exe | — | Client.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Terminates Processes Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
3 136
Read events
3 022
Write events
114
Delete events
0
Modification events
| (PID) Process: | (1048) test.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (1048) test.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (1048) test.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (1048) test.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (3320) Client.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (3320) Client.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Client.exe |
Value: "C:\Users\admin\AppData\Roaming\Client.exe" .. | |||
| (PID) Process: | (2128) Client.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
Executable files
4
Suspicious files
0
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1048 | test.exe | C:\Users\admin\AppData\Roaming\Client.exe | executable | |
MD5:— | SHA256:— | |||
| 3320 | Client.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Client.exe | executable | |
MD5:— | SHA256:— | |||
| 3320 | Client.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Client.url | text | |
MD5:3B882AAA0F3F7279BB3B072A1AD181FC | SHA256:E66B2188F75F0B5BC998546F60F143CBFD5113273AFDC2A3A08D999A51E298C7 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
DNS requests
3
Threats
2
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 |
|---|---|---|---|---|---|---|
3320 | Client.exe | 3.125.223.134:6522 | 0.tcp.eu.ngrok.io | AMAZON-02 | DE | malicious |
3320 | Client.exe | 3.125.209.94:6522 | 0.tcp.eu.ngrok.io | AMAZON-02 | DE | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
0.tcp.eu.ngrok.io |
| malicious |
dns.msftncsi.com |
| shared |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potential Corporate Privacy Violation | ET INFO DNS Query to a *.ngrok domain (ngrok.io) |
— | — | Potential Corporate Privacy Violation | ET INFO DNS Query to a *.ngrok domain (ngrok.io) |