| File name: | a99198757eb9c7f3d031a1224cbc9255.exe |
| Full analysis: | https://app.any.run/tasks/cc7bf332-10d7-4d48-84e8-08c6e659f6ad |
| 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: | August 08, 2023, 23:33:39 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | A99198757EB9C7F3D031A1224CBC9255 |
| SHA1: | F08373C82FB240E8FFC00D60F759F8731809C970 |
| SHA256: | 79870D97F8B51763D001C7935C895589C6F29573B45A0C98DA4C430C7F676937 |
| SSDEEP: | 384:QAqs2giHF1RJvubMcKyMTYe31kTf6bs8rAF+rMRTyN/0L+EcoinblneHQM3epzXA:zq3TTJc5MTYeGb6w8rM+rMRa8NuTat |
MALICIOUS
Create files in the Startup directory
- system.exe (PID: 332)
NJRAT detected by memory dumps
- system.exe (PID: 332)
Changes the autorun value in the registry
- system.exe (PID: 332)
NjRAT is detected
- system.exe (PID: 332)
Connects to the CnC server
- system.exe (PID: 332)
NJRAT was detected
- system.exe (PID: 332)
SUSPICIOUS
Reads the Internet Settings
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
Executable content was dropped or overwritten
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
- system.exe (PID: 332)
Starts itself from another location
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
Uses NETSH.EXE to add a firewall rule or allowed programs
- system.exe (PID: 332)
The process creates files with name similar to system file names
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
Connects to unusual port
- system.exe (PID: 332)
INFO
Reads the machine GUID from the registry
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
- system.exe (PID: 332)
Creates files or folders in the user directory
- system.exe (PID: 332)
Reads the computer name
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
- system.exe (PID: 332)
Checks supported languages
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
- system.exe (PID: 332)
The process checks LSA protection
- netsh.exe (PID: 1848)
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
- system.exe (PID: 332)
Create files in a temporary directory
- a99198757eb9c7f3d031a1224cbc9255.exe (PID: 2900)
Reads Environment values
- system.exe (PID: 332)
[YARA] Firewall manipulation strings were found
- system.exe (PID: 332)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
NjRat
(PID) Process(332) system.exe
C24.tcp.ngrok.io
Ports12181
BotnetHacKed
Options
Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\84936d0927c52cbf1a9c1029911fc028
Splitter|'|'|
Versionim523
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: | 2023:08:05 21:53:29+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 35840 |
| InitializedDataSize: | 1536 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xabae |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 05-Aug-2023 21:53:29 |
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: | 05-Aug-2023 21:53:29 |
| 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 | 0x00008BB4 | 0x00008C00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.6029 |
.rsrc | 0x0000C000 | 0x00000240 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.96877 |
.reloc | 0x0000E000 | 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
34
Monitored processes
3
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2900 | "C:\Users\admin\AppData\Local\Temp\a99198757eb9c7f3d031a1224cbc9255.exe" | C:\Users\admin\AppData\Local\Temp\a99198757eb9c7f3d031a1224cbc9255.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 332 | "C:\Users\admin\AppData\Local\Temp\system.exe" | C:\Users\admin\AppData\Local\Temp\system.exe | a99198757eb9c7f3d031a1224cbc9255.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
NjRat(PID) Process(332) system.exe C24.tcp.ngrok.io Ports12181 BotnetHacKed Options Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\84936d0927c52cbf1a9c1029911fc028 Splitter|'|'| Versionim523 | |||||||||||||||
| 1848 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE | C:\Windows\SysWOW64\netsh.exe | — | system.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
| |||||||||||||||
Total events
1 848
Read events
1 694
Write events
154
Delete events
0
Modification events
| (PID) Process: | (2900) a99198757eb9c7f3d031a1224cbc9255.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2900) a99198757eb9c7f3d031a1224cbc9255.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2900) a99198757eb9c7f3d031a1224cbc9255.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2900) a99198757eb9c7f3d031a1224cbc9255.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (332) system.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (1848) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\155\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (332) system.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | 84936d0927c52cbf1a9c1029911fc028 |
Value: "C:\Users\admin\AppData\Local\Temp\system.exe" .. | |||
Executable files
2
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 332 | system.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\84936d0927c52cbf1a9c1029911fc028.exe | executable | |
MD5:A99198757EB9C7F3D031A1224CBC9255 | SHA256:79870D97F8B51763D001C7935C895589C6F29573B45A0C98DA4C430C7F676937 | |||
| 2900 | a99198757eb9c7f3d031a1224cbc9255.exe | C:\Users\admin\AppData\Local\Temp\system.exe | executable | |
MD5:A99198757EB9C7F3D031A1224CBC9255 | SHA256:79870D97F8B51763D001C7935C895589C6F29573B45A0C98DA4C430C7F676937 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
56
DNS requests
2
Threats
127
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 | — | — | — | whitelisted |
328 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
332 | system.exe | 3.22.15.135:12181 | 4.tcp.ngrok.io | AMAZON-02 | US | malicious |
332 | system.exe | 3.138.180.119:12181 | 4.tcp.ngrok.io | AMAZON-02 | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
4.tcp.ngrok.io |
| malicious |
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) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
— | — | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
82 ETPRO signatures available at the full report