| File name: | vpn.exe |
| Full analysis: | https://app.any.run/tasks/3f76400f-8b9b-40df-9ef3-9ea59f704895 |
| 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: | November 12, 2020, 18:30:58 |
| 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: | EFDE9B943E2248E384D22206319F4FD9 |
| SHA1: | 1F7DCB551A24BD958B31A264A682AF69C24AF7DD |
| SHA256: | 50C122C5211F13D3681B4411CD57EEB3C9ED960D5F29BB6C10F80E65E3141875 |
| SSDEEP: | 196608:iKHN6ta0cmH7YbkVl1NlC3ACeLOkXWr+kKezeB43T/r78e8Ra3v8JIGvojh:iA6BcIJ1NlC3MCkX6GeSBCzcaf8JIGvw |
MALICIOUS
Application was dropped or rewritten from another process
- dwm.exe (PID: 2556)
- Server.exe (PID: 1976)
Writes to a start menu file
- dwm.exe (PID: 2556)
Connects to CnC server
- dwm.exe (PID: 2556)
Changes the autorun value in the registry
- dwm.exe (PID: 2556)
NJRAT was detected
- dwm.exe (PID: 2556)
SUSPICIOUS
Starts itself from another location
- Server.exe (PID: 1976)
Uses NETSH.EXE for network configuration
- dwm.exe (PID: 2556)
Executable content was dropped or overwritten
- vpn.exe (PID: 2216)
- Server.exe (PID: 1976)
- dwm.exe (PID: 2556)
Application launched itself
- vpn.exe (PID: 2864)
Creates files in the program directory
- Server.exe (PID: 1976)
Creates executable files which already exist in Windows
- dwm.exe (PID: 2556)
Creates files in the user directory
- dwm.exe (PID: 2556)
Starts CMD.EXE for self-deleting
- dwm.exe (PID: 2556)
Starts CMD.EXE for commands execution
- dwm.exe (PID: 2556)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
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: | 2020:06:25 12:38:24+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 200704 |
| InitializedDataSize: | 142848 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1ea80 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 25-Jun-2020 10:38:24 |
| Detected languages: |
|
| Debug artifacts: |
|
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: | 0x00000118 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 6 |
| Time date stamp: | 25-Jun-2020 10:38:24 |
| 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 | 0x00001000 | 0x00030F2A | 0x00031000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.70442 |
.rdata | 0x00032000 | 0x0000A5F2 | 0x0000A600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.2593 |
.data | 0x0003D000 | 0x00023720 | 0x00001000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.70568 |
.didat | 0x00061000 | 0x00000188 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.29951 |
.rsrc | 0x00062000 | 0x000151F0 | 0x00015200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.32616 |
.reloc | 0x00078000 | 0x00002264 | 0x00002400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.55675 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.25329 | 1875 | Latin 1 / Western European | UNKNOWN | RT_MANIFEST |
7 | 3.66634 | 508 | Latin 1 / Western European | UNKNOWN | RT_STRING |
8 | 3.71728 | 582 | Latin 1 / Western European | UNKNOWN | RT_STRING |
9 | 3.73856 | 422 | Latin 1 / Western European | UNKNOWN | RT_STRING |
10 | 3.55807 | 220 | Latin 1 / Western European | UNKNOWN | RT_STRING |
11 | 3.89762 | 1124 | Latin 1 / Western European | UNKNOWN | RT_STRING |
12 | 3.68258 | 356 | Latin 1 / Western European | UNKNOWN | RT_STRING |
13 | 3.61824 | 272 | Latin 1 / Western European | UNKNOWN | RT_STRING |
14 | 3.61995 | 344 | Latin 1 / Western European | UNKNOWN | RT_STRING |
15 | 3.4037 | 232 | Latin 1 / Western European | UNKNOWN | RT_STRING |
Imports
KERNEL32.dll |
USER32.dll (delay-loaded) |
gdiplus.dll |
Total processes
47
Monitored processes
8
Malicious processes
4
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1092 | netsh firewall add allowedprogram "C:\ProgramData\dwm.exe" "dwm.exe" ENABLE | C:\Windows\system32\netsh.exe | — | dwm.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Network Command Shell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1728 | ping 0 | C:\Windows\system32\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: TCP/IP Ping Command Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1976 | "C:\Server.exe" | C:\Server.exe | vpn.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 2080 | netsh firewall delete allowedprogram "C:\ProgramData\dwm.exe" | C:\Windows\system32\netsh.exe | — | dwm.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Network Command Shell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2140 | cmd.exe /k ping 0 & del "C:\ProgramData\dwm.exe" & exit | C:\Windows\system32\cmd.exe | — | dwm.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2216 | "C:\Users\admin\AppData\Local\Temp\vpn.exe" -el -s2 "-dc:\" "-sp" | C:\Users\admin\AppData\Local\Temp\vpn.exe | vpn.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 2556 | "C:\ProgramData\dwm.exe" | C:\ProgramData\dwm.exe | Server.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 2864 | "C:\Users\admin\AppData\Local\Temp\vpn.exe" | C:\Users\admin\AppData\Local\Temp\vpn.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
Total events
653
Read events
464
Write events
186
Delete events
3
Modification events
| (PID) Process: | (2864) vpn.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2864) vpn.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2216) vpn.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2216) vpn.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (1976) Server.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (2556) dwm.exe | Key: | HKEY_CURRENT_USER |
| Operation: | write | Name: | di |
Value: ! | |||
| (PID) Process: | (1976) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (1976) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2556) dwm.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | cf6ca85db1fc8e84521226629ffb767f |
Value: "C:\ProgramData\dwm.exe" .. | |||
| (PID) Process: | (2556) dwm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | cf6ca85db1fc8e84521226629ffb767f |
Value: "C:\ProgramData\dwm.exe" .. | |||
Executable files
5
Suspicious files
0
Text files
0
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2216 | vpn.exe | C:\Server.exe | executable | |
MD5:— | SHA256:— | |||
| 2216 | vpn.exe | C:\kka.exe | executable | |
MD5:— | SHA256:— | |||
| 2556 | dwm.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cf6ca85db1fc8e84521226629ffb767f.exe | executable | |
MD5:— | SHA256:— | |||
| 2556 | dwm.exe | C:\svchost.exe | executable | |
MD5:— | SHA256:— | |||
| 1976 | Server.exe | C:\ProgramData\dwm.exe | executable | |
MD5:— | SHA256:— | |||
| 2556 | dwm.exe | C:\autorun.inf | inf | |
MD5:5B0B50BADE67C5EC92D42E971287A5D9 | SHA256:04DDE2489D2D2E6846D42250D813AB90B5CA847D527F8F2C022E6C327DC6DB53 | |||
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
1
Threats
9
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 |
|---|---|---|---|---|---|---|
2556 | dwm.exe | 3.14.182.203:14437 | 0.tcp.ngrok.io | — | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
0.tcp.ngrok.io |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1060 | svchost.exe | Potential Corporate Privacy Violation | ET POLICY DNS Query to a *.ngrok domain (ngrok.io) |
2556 | dwm.exe | A Network Trojan was detected | ET TROJAN Bladabindi/njRAT CnC Command (ll) |
2556 | dwm.exe | A Network Trojan was detected | MALWARE [PTsecurity] njRAT/Bladabindi |
2556 | dwm.exe | A Network Trojan was detected | MALWARE [PTsecurity] njRAT.Gen RAT outbound connection |
2556 | dwm.exe | A Network Trojan was detected | ET TROJAN Bladabindi/njRAT CnC Command (ll) |
2556 | dwm.exe | A Network Trojan was detected | MALWARE [PTsecurity] njRAT.Gen RAT outbound connection |
2556 | dwm.exe | A Network Trojan was detected | MALWARE [PTsecurity] njRAT.Gen RAT outbound connection |
2556 | dwm.exe | A Network Trojan was detected | MALWARE [PTsecurity] njRAT.Gen RAT outbound connection |
1 ETPRO signatures available at the full report