| File name: | 3.exe |
| Full analysis: | https://app.any.run/tasks/bd3d2c56-9b57-439a-a991-c4cbafc2da0b |
| 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: | July 14, 2023, 12:11:27 |
| 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: | 3C23C683D6B4FD7B90800A601C02BA62 |
| SHA1: | D1621425E57093CD52D7C8B17CD82305D6874714 |
| SHA256: | C4CF559F1C852001745B09C017D4C809ADB2906B52FFF69D9B1EB2C8DBCAF5F5 |
| SSDEEP: | 768:hY3g6ankpjTMpALPGMtsas88EtNXhg9f1mxCXxrjEtCdnl2pi1Rz4Rk3lsGdpZgM:/6akVbPGHz88EbA1pjEwzGi1dDVDZgS |
MALICIOUS
Create files in the Startup directory
- 3.exe (PID: 3600)
Uses Task Scheduler to run other applications
- svchost.exe (PID: 2268)
NJRAT detected by memory dumps
- svchost.exe (PID: 2268)
NJRAT was detected
- svchost.exe (PID: 2268)
Connects to the CnC server
- svchost.exe (PID: 2268)
SUSPICIOUS
Executable content was dropped or overwritten
- 3.exe (PID: 3600)
- svchost.exe (PID: 2268)
The process creates files with name similar to system file names
- 3.exe (PID: 3600)
Uses NETSH.EXE to delete a firewall rule or allowed programs
- 3.exe (PID: 3600)
- svchost.exe (PID: 2268)
Creates executable files that already exist in Windows
- 3.exe (PID: 3600)
Uses NETSH.EXE to add a firewall rule or allowed programs
- svchost.exe (PID: 2268)
- 3.exe (PID: 3600)
Reads the Internet Settings
- 3.exe (PID: 3600)
Starts itself from another location
- 3.exe (PID: 3600)
Connects to unusual port
- svchost.exe (PID: 2268)
The process executes via Task Scheduler
- StUpdate.exe (PID: 3936)
- StUpdate.exe (PID: 1176)
INFO
The process checks LSA protection
- 3.exe (PID: 3600)
- netsh.exe (PID: 2664)
- netsh.exe (PID: 2324)
- netsh.exe (PID: 3976)
- netsh.exe (PID: 2900)
- netsh.exe (PID: 3124)
- svchost.exe (PID: 2268)
- StUpdate.exe (PID: 1176)
- netsh.exe (PID: 3940)
Reads the computer name
- 3.exe (PID: 3600)
- svchost.exe (PID: 2268)
- StUpdate.exe (PID: 1176)
Checks supported languages
- 3.exe (PID: 3600)
- svchost.exe (PID: 2268)
- StUpdate.exe (PID: 1176)
Reads the machine GUID from the registry
- 3.exe (PID: 3600)
- svchost.exe (PID: 2268)
- StUpdate.exe (PID: 1176)
Create files in a temporary directory
- 3.exe (PID: 3600)
- svchost.exe (PID: 2268)
- StUpdate.exe (PID: 1176)
Creates files or folders in the user directory
- 3.exe (PID: 3600)
[YARA] Firewall manipulation strings were found
- svchost.exe (PID: 2268)
Reads Environment values
- svchost.exe (PID: 2268)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
NjRat
(PID) Process(2268) svchost.exe
C2purpose-nuke.at.ply.gg
Ports53253
Botnet
Options
Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\51245458d7a9498968a65e798b3a9ed8
Splitter|'|'|
Version0.7d
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
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x18efe |
| UninitializedDataSize: | - |
| InitializedDataSize: | 512 |
| CodeSize: | 94208 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| ImageFileCharacteristics: | Executable, 32-bit |
| TimeStamp: | 2023:07:14 12:09:36+00:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 14-Jul-2023 12:09:36 |
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: | 2 |
| Time date stamp: | 14-Jul-2023 12:09:36 |
| 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 | 0x00016F04 | 0x00017000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.59058 |
.reloc | 0x0001A000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Imports
mscoree.dll |
Total processes
55
Monitored processes
11
Malicious processes
2
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1176 | C:\Users\admin\AppData\Local\Temp/StUpdate.exe | C:\Users\admin\AppData\Local\Temp\StUpdate.exe | taskeng.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 2268 | "C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe" | C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe | 3.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
NjRat(PID) Process(2268) svchost.exe C2purpose-nuke.at.ply.gg Ports53253 Botnet Options Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\51245458d7a9498968a65e798b3a9ed8 Splitter|'|'| Version0.7d | |||||||||||||||
| 2324 | 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
| |||||||||||||||
| 2664 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\3.exe" "3.exe" ENABLE | C:\Windows\System32\netsh.exe | — | 3.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
| |||||||||||||||
| 2900 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\3.exe" "3.exe" ENABLE | C:\Windows\System32\netsh.exe | — | 3.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
| |||||||||||||||
| 3124 | netsh firewall delete allowedprogram "C:\Users\admin\AppData\Local\Temp\3.exe" | C:\Windows\System32\netsh.exe | — | 3.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
| |||||||||||||||
| 3600 | "C:\Users\admin\AppData\Local\Temp\3.exe" | C:\Users\admin\AppData\Local\Temp\3.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3928 | 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
| |||||||||||||||
| 3936 | 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
| |||||||||||||||
| 3940 | 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
| |||||||||||||||
Total events
4 360
Read events
4 075
Write events
285
Delete events
0
Modification events
| (PID) Process: | (2664) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\176\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3600) 3.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (3600) 3.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (3600) 3.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (3600) 3.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (3124) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\176\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2900) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\176\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2268) svchost.exe | Key: | HKEY_CURRENT_USER\Environment |
| Operation: | write | Name: | SEE_MASK_NOZONECHECKS |
Value: 1 | |||
| (PID) Process: | (2324) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\176\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3976) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\176\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
4
Suspicious files
0
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3600 | 3.exe | C:\Users\admin\AppData\Local\Temp\melt.txt | text | |
MD5:25865522C3EF8331D4352A6AD79EA58A | SHA256:F37DCBFAA021B33689B651D356AE25C6B54937489D0D4080F9F6554C21D3B390 | |||
| 2268 | svchost.exe | C:\Users\admin\AppData\Local\Temp\StUpdate.exe | executable | |
MD5:3C23C683D6B4FD7B90800A601C02BA62 | SHA256:C4CF559F1C852001745B09C017D4C809ADB2906B52FFF69D9B1EB2C8DBCAF5F5 | |||
| 3600 | 3.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | executable | |
MD5:3C23C683D6B4FD7B90800A601C02BA62 | SHA256:C4CF559F1C852001745B09C017D4C809ADB2906B52FFF69D9B1EB2C8DBCAF5F5 | |||
| 3600 | 3.exe | C:\Users\admin\AppData\Roaming\app | text | |
MD5:8F11404A507CFB98455F89A534077F73 | SHA256:F7C301F3FCCE1C2444B540090E5024F0CEA1806AB8AE1D81901ECC3B63334CBB | |||
| 3600 | 3.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51245458d7a9498968a65e798b3a9ed8Windows Update.exe | executable | |
MD5:3C23C683D6B4FD7B90800A601C02BA62 | SHA256:C4CF559F1C852001745B09C017D4C809ADB2906B52FFF69D9B1EB2C8DBCAF5F5 | |||
| 3600 | 3.exe | C:\Users\admin\AppData\Roaming\Microsoft\svchost.exe | executable | |
MD5:3C23C683D6B4FD7B90800A601C02BA62 | SHA256:C4CF559F1C852001745B09C017D4C809ADB2906B52FFF69D9B1EB2C8DBCAF5F5 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
6
DNS requests
1
Threats
3
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 |
|---|---|---|---|---|---|---|
3388 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1096 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
2268 | svchost.exe | 209.25.141.181:53253 | purpose-nuke.at.ply.gg | PLAYIT-GG | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
purpose-nuke.at.ply.gg |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1096 | svchost.exe | Potentially Bad Traffic | ET INFO playit .gg Tunneling Domain in DNS Lookup |
2268 | svchost.exe | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
1 ETPRO signatures available at the full report