| File name: | TaskMgr.exe |
| Full analysis: | https://app.any.run/tasks/af72db05-0377-4635-8c5c-41ba27e7777d |
| Verdict: | Malicious activity |
| Threats: | A backdoor is a type of cybersecurity threat that allows attackers to secretly compromise a system and conduct malicious activities, such as stealing data and modifying files. Backdoors can be difficult to detect, as they often use legitimate system applications to evade defense mechanisms. Threat actors often utilize special malware, such as PlugX, to establish backdoors on target devices. |
| Analysis date: | May 12, 2025, 04:25:26 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections |
| MD5: | DD96C8DC0FFA96A781E5C1CB9C5B32CC |
| SHA1: | 29900E3DFEBAF26A7DDD2B793BFFCAEC5C37FF1A |
| SHA256: | C1520F75BE97626CF4938F76ED988AF9097A82620245698DBA6A131F1040A05F |
| SSDEEP: | 768:u1TiYxDmeb9rpiEH3pewa0XuiokbS2agD5PvUMXXJdxIEpmgDO:u1u25hp1ZbokkgDpX3xIEpmgDO |
MALICIOUS
Create files in the Startup directory
- dllhost.exe (PID: 4628)
Changes the autorun value in the registry
- dllhost.exe (PID: 4628)
NJRAT has been detected (YARA)
- dllhost.exe (PID: 4628)
NjRAT is detected
- dllhost.exe (PID: 4628)
NJRAT has been detected (SURICATA)
- dllhost.exe (PID: 4628)
Connects to the CnC server
- dllhost.exe (PID: 4628)
SUSPICIOUS
Starts itself from another location
- TaskMgr.exe (PID: 3888)
Reads security settings of Internet Explorer
- TaskMgr.exe (PID: 3888)
Executable content was dropped or overwritten
- TaskMgr.exe (PID: 3888)
- dllhost.exe (PID: 4628)
The process creates files with name similar to system file names
- TaskMgr.exe (PID: 3888)
Uses ATTRIB.EXE to modify file attributes
- dllhost.exe (PID: 4628)
There is functionality for taking screenshot (YARA)
- dllhost.exe (PID: 4628)
Connects to unusual port
- dllhost.exe (PID: 4628)
Contacting a server suspected of hosting an CnC
- dllhost.exe (PID: 4628)
INFO
Create files in a temporary directory
- TaskMgr.exe (PID: 3888)
- dllhost.exe (PID: 4628)
Process checks computer location settings
- TaskMgr.exe (PID: 3888)
Checks supported languages
- dllhost.exe (PID: 4628)
- TaskMgr.exe (PID: 3888)
Reads the computer name
- TaskMgr.exe (PID: 3888)
- dllhost.exe (PID: 4628)
Creates files or folders in the user directory
- dllhost.exe (PID: 4628)
Auto-launch of the file from Startup directory
- dllhost.exe (PID: 4628)
Auto-launch of the file from Registry key
- dllhost.exe (PID: 4628)
Reads the machine GUID from the registry
- dllhost.exe (PID: 4628)
Manual execution by a user
- dllhost.exe (PID: 4268)
- dllhost.exe (PID: 4944)
Checks proxy server information
- slui.exe (PID: 1096)
Reads the software policy settings
- slui.exe (PID: 1096)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
NjRat
(PID) Process(4628) dllhost.exe
C2147.185.221.27
Ports39536
BotnetVictim
Options
Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\48d5ba838ff96f257a6ef43143620b5a
SplitterY262SUCZ4UJJ
Version<- NjRAT 0.7d Horror Edition ->
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
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2025:05:12 04:05:05+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 53760 |
| InitializedDataSize: | 5632 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xf03e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Total processes
131
Monitored processes
8
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1056 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | attrib.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1096 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3888 | "C:\Users\admin\Desktop\TaskMgr.exe" | C:\Users\admin\Desktop\TaskMgr.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 4244 | attrib +h "C:\Users\admin\AppData\Local\Temp\dllhost.exe" | C:\Windows\SysWOW64\attrib.exe | — | dllhost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Attribute Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4268 | "C:\Users\admin\AppData\Local\Temp\dllhost.exe" .. | C:\Users\admin\AppData\Local\Temp\dllhost.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221226540 Modules
| |||||||||||||||
| 4628 | "C:\Users\admin\AppData\Local\Temp\dllhost.exe" | C:\Users\admin\AppData\Local\Temp\dllhost.exe | TaskMgr.exe | ||||||||||||
User: admin Integrity Level: HIGH Modules
NjRat(PID) Process(4628) dllhost.exe C2147.185.221.27 Ports39536 BotnetVictim Options Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\48d5ba838ff96f257a6ef43143620b5a SplitterY262SUCZ4UJJ Version<- NjRAT 0.7d Horror Edition -> | |||||||||||||||
| 4944 | "C:\Users\admin\AppData\Local\Temp\dllhost.exe" .. | C:\Users\admin\AppData\Local\Temp\dllhost.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221226540 Modules
| |||||||||||||||
| 7052 | "C:\Users\admin\Desktop\TaskMgr.exe" | C:\Users\admin\Desktop\TaskMgr.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221226540 Modules
| |||||||||||||||
Total events
5 007
Read events
4 728
Write events
279
Delete events
0
Modification events
| (PID) Process: | (4628) dllhost.exe | Key: | HKEY_CURRENT_USER\Environment |
| Operation: | write | Name: | SEE_MASK_NOZONECHECKS |
Value: 1 | |||
| (PID) Process: | (4628) dllhost.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | 48d5ba838ff96f257a6ef43143620b5a |
Value: "C:\Users\admin\AppData\Local\Temp\dllhost.exe" .. | |||
| (PID) Process: | (4628) dllhost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | 48d5ba838ff96f257a6ef43143620b5a |
Value: "C:\Users\admin\AppData\Local\Temp\dllhost.exe" .. | |||
| (PID) Process: | (4628) dllhost.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\48d5ba838ff96f257a6ef43143620b5a |
| Operation: | write | Name: | [kl] |
Value: | |||
Executable files
2
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4628 | dllhost.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\48d5ba838ff96f257a6ef43143620b5a.exe | executable | |
MD5:DD96C8DC0FFA96A781E5C1CB9C5B32CC | SHA256:C1520F75BE97626CF4938F76ED988AF9097A82620245698DBA6A131F1040A05F | |||
| 3888 | TaskMgr.exe | C:\Users\admin\AppData\Local\Temp\dllhost.exe | executable | |
MD5:DD96C8DC0FFA96A781E5C1CB9C5B32CC | SHA256:C1520F75BE97626CF4938F76ED988AF9097A82620245698DBA6A131F1040A05F | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
23
TCP/UDP connections
40
DNS requests
12
Threats
2
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
4920 | SIHClient.exe | GET | 200 | 2.19.11.105:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 304 | 52.149.20.212:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | unknown | — | — | — |
— | — | GET | 200 | 52.149.20.212:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | unknown | — | — | — |
4920 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
4920 | SIHClient.exe | GET | 200 | 2.19.11.105:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl | unknown | — | — | whitelisted |
4920 | SIHClient.exe | GET | 200 | 2.19.11.105:80 | http://crl.microsoft.com/pki/crl/products/MicTimStaPCA_2010-07-01.crl | unknown | — | — | whitelisted |
4920 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 20.242.39.171:443 | https://fe3cr.delivery.mp.microsoft.com/clientwebservice/ping | unknown | — | — | — |
4920 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
4920 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.2.crl | unknown | — | — | whitelisted |
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 |
— | — | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3216 | svchost.exe | 172.211.123.250:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
4628 | dllhost.exe | 147.185.221.27:39536 | — | PLAYIT-GG | US | malicious |
4920 | SIHClient.exe | 52.149.20.212:443 | slscr.update.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
4920 | SIHClient.exe | 2.19.11.105:80 | crl.microsoft.com | Elisa Oyj | NL | whitelisted |
4920 | SIHClient.exe | 95.101.149.131:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
4920 | SIHClient.exe | 20.242.39.171:443 | fe3cr.delivery.mp.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
7148 | slui.exe | 40.91.76.224:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |
login.live.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
4628 | dllhost.exe | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
4628 | dllhost.exe | Malware Command and Control Activity Detected | BACKDOOR [ANY.RUN] njRAT Bladabindi CnC Communication command ll |