| File name: | C57991E4269B688783BC55D013358972.exe |
| Full analysis: | https://app.any.run/tasks/8b587e7d-5b36-46cb-86cf-c2e42ad75c83 |
| 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 17, 2025, 15:51:48 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 4 sections |
| MD5: | C57991E4269B688783BC55D013358972 |
| SHA1: | 15C47B1D9BED294B972B685FF5261E91ABAB0217 |
| SHA256: | E53D13923B4CB4503360A71F1A2F63E4954615FAF55EDC0B0116F1B2836142BB |
| SSDEEP: | 12288:Gp7J8xoGYWjOjqyMyy291xLt4+UsJjju93YkKVbowE:Gp7iVjOjqyMy91xLt4+UsJjju93XKVbE |
MALICIOUS
Changes the autorun value in the registry
- Widget_21F2E8883D418A0C.exe (PID: 2284)
NjRAT is detected
- MSBuild.exe (PID: 812)
NJRAT has been detected (YARA)
- MSBuild.exe (PID: 812)
Connects to the CnC server
- MSBuild.exe (PID: 812)
NJRAT has been detected (SURICATA)
- MSBuild.exe (PID: 812)
SUSPICIOUS
Executable content was dropped or overwritten
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
Reads security settings of Internet Explorer
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
Starts itself from another location
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
Connects to unusual port
- MSBuild.exe (PID: 812)
Contacting a server suspected of hosting an CnC
- MSBuild.exe (PID: 812)
INFO
Checks supported languages
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
- Widget_21F2E8883D418A0C.exe (PID: 2284)
- MSBuild.exe (PID: 812)
- Widget_21F2E8883D418A0C.exe (PID: 5640)
- MSBuild.exe (PID: 6112)
Creates files or folders in the user directory
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
Reads the computer name
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
- Widget_21F2E8883D418A0C.exe (PID: 2284)
- Widget_21F2E8883D418A0C.exe (PID: 5640)
- MSBuild.exe (PID: 6112)
- MSBuild.exe (PID: 812)
Reads the machine GUID from the registry
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
- Widget_21F2E8883D418A0C.exe (PID: 2284)
- MSBuild.exe (PID: 812)
- Widget_21F2E8883D418A0C.exe (PID: 5640)
- MSBuild.exe (PID: 6112)
Process checks computer location settings
- C57991E4269B688783BC55D013358972.exe (PID: 5176)
Auto-launch of the file from Registry key
- Widget_21F2E8883D418A0C.exe (PID: 2284)
Manual execution by a user
- Widget_21F2E8883D418A0C.exe (PID: 5640)
.NET Reactor protector has been detected
- Widget_21F2E8883D418A0C.exe (PID: 2284)
- Widget_21F2E8883D418A0C.exe (PID: 5640)
Reads the software policy settings
- slui.exe (PID: 5596)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
NjRat
(PID) Process(812) MSBuild.exe
C2hsolic.duckdns.org
Ports6903
BotnetMAY25
Options
Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\bda8e5e4e3a30f46083515049261d195
SplitterboolLove
VersionHallaj PRO Rat [Fixed]
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2105:05:09 15:46:11+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, Large address aware, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 9 |
| CodeSize: | 104448 |
| InitializedDataSize: | 333312 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xccef |
| OSVersion: | 5 |
| ImageVersion: | - |
| SubsystemVersion: | 5 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Widget |
| FileVersion: | 1.0.0.0 |
| InternalName: | Stub.exe |
| LegalCopyright: | Copyright © 2025 |
| LegalTrademarks: | - |
| OriginalFileName: | Stub.exe |
| ProductName: | Widget |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
140
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 812 | "C:\WINDOWS\Microsoft.NET\Framework\v3.5\msbuild.exe" | C:\Windows\Microsoft.NET\Framework\v3.5\MSBuild.exe | Widget_21F2E8883D418A0C.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Version: 3.5.30729.9141 built by: WinRelRS6 Modules
NjRat(PID) Process(812) MSBuild.exe C2hsolic.duckdns.org Ports6903 BotnetMAY25 Options Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\bda8e5e4e3a30f46083515049261d195 SplitterboolLove VersionHallaj PRO Rat [Fixed] | |||||||||||||||
| 2196 | C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2284 | "C:\Users\admin\AppData\Roaming\Widget\Widget_21F2E8883D418A0C.exe" | C:\Users\admin\AppData\Roaming\Widget\Widget_21F2E8883D418A0C.exe | C57991E4269B688783BC55D013358972.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Widget Version: 1.0.0.0 Modules
| |||||||||||||||
| 3676 | "C:\WINDOWS\Microsoft.NET\Framework\v3.5\msbuild.exe" | C:\Windows\Microsoft.NET\Framework\v3.5\MSBuild.exe | — | Widget_21F2E8883D418A0C.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Exit code: 4294967295 Version: 3.5.30729.9141 built by: WinRelRS6 Modules
| |||||||||||||||
| 4776 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5176 | "C:\Users\admin\AppData\Local\Temp\C57991E4269B688783BC55D013358972.exe" | C:\Users\admin\AppData\Local\Temp\C57991E4269B688783BC55D013358972.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Widget Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 5596 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | SppExtComObj.Exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5640 | "C:\Users\admin\AppData\Roaming\Widget\Widget_21F2E8883D418A0C.exe" | C:\Users\admin\AppData\Roaming\Widget\Widget_21F2E8883D418A0C.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: Widget Version: 1.0.0.0 Modules
| |||||||||||||||
| 6108 | "C:\WINDOWS\Microsoft.NET\Framework\v3.5\msbuild.exe" | C:\Windows\Microsoft.NET\Framework\v3.5\MSBuild.exe | — | Widget_21F2E8883D418A0C.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Exit code: 4294967295 Version: 3.5.30729.9141 built by: WinRelRS6 Modules
| |||||||||||||||
| 6112 | "C:\WINDOWS\Microsoft.NET\Framework\v3.5\msbuild.exe" | C:\Windows\Microsoft.NET\Framework\v3.5\MSBuild.exe | — | Widget_21F2E8883D418A0C.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Exit code: 0 Version: 3.5.30729.9141 built by: WinRelRS6 Modules
| |||||||||||||||
Total events
2 264
Read events
2 254
Write events
9
Delete events
1
Modification events
| (PID) Process: | (5176) C57991E4269B688783BC55D013358972.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer |
| Operation: | write | Name: | SlowContextMenuEntries |
Value: 6024B221EA3A6910A2DC08002B30309D0A010000BD0E0C47735D584D9CEDE91E22E23282770100000114020000000000C0000000000000468D0000006078A409B011A54DAFA526D86198A780390100009AD298B2EDA6DE11BA8CA68E55D895936E000000 | |||
| (PID) Process: | (2284) Widget_21F2E8883D418A0C.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Widget_21F2E8883D418A0C_I6JLyHfk |
Value: "C:\Users\admin\AppData\Roaming\Widget\Widget_21F2E8883D418A0C.exe" | |||
| (PID) Process: | (5640) Widget_21F2E8883D418A0C.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | delete value | Name: | Widget_21F2E8883D418A0C_I6JLyHfk |
Value: "C:\Users\admin\AppData\Roaming\Widget\Widget_21F2E8883D418A0C.exe" | |||
| (PID) Process: | (812) MSBuild.exe | Key: | HKEY_CURRENT_USER\Environment |
| Operation: | write | Name: | SEE_MASK_NOZONECHECKS |
Value: 1 | |||
| (PID) Process: | (812) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\bda8e5e4e3a30f46083515049261d195 |
| Operation: | write | Name: | [kl] |
Value: | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5176 | C57991E4269B688783BC55D013358972.exe | C:\Users\admin\AppData\Roaming\Widget\Widget_21F2E8883D418A0C.exe | executable | |
MD5:C57991E4269B688783BC55D013358972 | SHA256:E53D13923B4CB4503360A71F1A2F63E4954615FAF55EDC0B0116F1B2836142BB | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
22
DNS requests
17
Threats
6
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.216.77.42:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1452 | SIHClient.exe | GET | 200 | 23.219.150.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
1452 | SIHClient.exe | GET | 200 | 23.219.150.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | 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 |
|---|---|---|---|---|---|---|
2104 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 23.216.77.42:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2112 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 20.190.160.5:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
hsolic.duckdns.org |
| malicious |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2196 | svchost.exe | Potentially Bad Traffic | ET DYN_DNS DYNAMIC_DNS Query to a *.duckdns .org Domain |
2196 | svchost.exe | Misc activity | ET DYN_DNS DYNAMIC_DNS Query to *.duckdns. Domain |
2196 | svchost.exe | Potentially Bad Traffic | ET DYN_DNS DYNAMIC_DNS Query to a *.duckdns .org Domain |
2196 | svchost.exe | Misc activity | ET DYN_DNS DYNAMIC_DNS Query to *.duckdns. Domain |
812 | MSBuild.exe | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
812 | MSBuild.exe | Malware Command and Control Activity Detected | BACKDOOR [ANY.RUN] njRAT Bladabindi CnC Communication command ll |