| File name: | build.exe |
| Full analysis: | https://app.any.run/tasks/0ae50a1a-e925-483f-9e2f-4f73e0f7ee9c |
| Verdict: | Malicious activity |
| Threats: | AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. |
| Analysis date: | August 30, 2024, 10:24:08 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows |
| MD5: | 0D72F3B25099FB35B815B94955C29639 |
| SHA1: | 3271D7EFE61BA74FD325FC557D24BB616AC9F1F4 |
| SHA256: | 801FE587A5DE43693165001595461B34DC41864838776D9AFA72C690CD6464EC |
| SSDEEP: | 6144:3IpEUfdr8g2VwlGDwYLxGnRaPdBbnbxCy:Yprug2W2LQRaV5 |
MALICIOUS
Uses Task Scheduler to run other applications
- cmd.exe (PID: 5744)
- cmd.exe (PID: 6640)
Changes the AppInit_DLLs value (autorun option)
- build.exe (PID: 5160)
Changes the login/logoff helper path in the registry
- build.exe (PID: 5160)
ASYNCRAT has been detected (SURICATA)
- xdwd (PID: 2396)
SUSPICIOUS
Drops the executable file immediately after the start
- build.exe (PID: 5464)
- build.exe (PID: 5160)
Reads security settings of Internet Explorer
- build.exe (PID: 5464)
- build.exe (PID: 5160)
Executable content was dropped or overwritten
- build.exe (PID: 5160)
Application launched itself
- build.exe (PID: 5464)
Starts CMD.EXE for commands execution
- build.exe (PID: 5160)
The process executes via Task Scheduler
- xdwd (PID: 2396)
Reads the date of Windows installation
- build.exe (PID: 5160)
- build.exe (PID: 5464)
Contacting a server suspected of hosting an CnC
- xdwd (PID: 2396)
Connects to unusual port
- xdwd (PID: 2396)
INFO
Checks supported languages
- build.exe (PID: 5464)
- xdwd (PID: 2396)
- build.exe (PID: 5160)
Reads the computer name
- build.exe (PID: 5160)
- xdwd (PID: 2396)
- build.exe (PID: 5464)
Creates files or folders in the user directory
- build.exe (PID: 5160)
Process checks computer location settings
- build.exe (PID: 5464)
Reads the machine GUID from the registry
- build.exe (PID: 5160)
- xdwd (PID: 2396)
- build.exe (PID: 5464)
Reads Environment values
- xdwd (PID: 2396)
Reads the software policy settings
- xdwd (PID: 2396)
The process uses the downloaded file
- build.exe (PID: 5464)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic Win/DOS Executable (50) |
|---|---|---|
| .exe | | | DOS Executable Generic (49.9) |
EXIF
EXE
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2024:08:26 21:19:29+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 48 |
| CodeSize: | 215552 |
| InitializedDataSize: | 1536 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x0000 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| 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: | Client |
| FileVersion: | 1.0.0.0 |
| InternalName: | Client.exe |
| LegalCopyright: | Copyright © 2024 |
| LegalTrademarks: | - |
| OriginalFileName: | Client.exe |
| ProductName: | Client |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
143
Monitored processes
13
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1168 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2396 | "C:\Users\admin\AppData\Roaming\xdwd" | C:\Users\admin\AppData\Roaming\xdwd | svchost.exe | ||||||||||||
User: admin Integrity Level: HIGH Description: Client Version: 1.0.0.0 Modules
| |||||||||||||||
| 4160 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.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
| |||||||||||||||
| 4976 | "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
| |||||||||||||||
| 5160 | "C:\Users\admin\AppData\Local\Temp\build.exe" | C:\Users\admin\AppData\Local\Temp\build.exe | build.exe | ||||||||||||
User: admin Integrity Level: HIGH Description: Client Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 5464 | "C:\Users\admin\AppData\Local\Temp\build.exe" | C:\Users\admin\AppData\Local\Temp\build.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: Client Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 5744 | "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "svchost" /tr "C:\Users\admin\AppData\Roaming\xdwd" /RL HIGHEST & exit | C:\Windows\System32\cmd.exe | — | build.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6280 | schtasks /create /f /sc minute /mo 1 /tn "svchost" /tr "C:\Users\admin\AppData\Roaming\xdwd" /RL HIGHEST | C:\Windows\System32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Task Scheduler Configuration Tool Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6536 | schtasks /create /f /sc minute /mo 30 /tn "svchosts" /tr "C:\Users\admin\AppData\Roaming\Runtime Broker" /RL HIGHEST | C:\Windows\System32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Task Scheduler Configuration Tool Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6640 | "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "svchosts" /tr "C:\Users\admin\AppData\Roaming\Runtime Broker" /RL HIGHEST & exit | C:\Windows\System32\cmd.exe | — | build.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
12 765
Read events
12 752
Write events
13
Delete events
0
Modification events
| (PID) Process: | (5464) build.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (5464) build.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (5464) build.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (5464) build.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (5160) build.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon |
| Operation: | write | Name: | Userinit |
Value: C:\Windows\System32\userinit.exe,C:\Users\admin\AppData\Roaming\xdwd | |||
| (PID) Process: | (5160) build.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows |
| Operation: | write | Name: | AppInit_DLLs |
Value: C:\WINDOWS\xdwd.dll | |||
| (PID) Process: | (5160) build.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows |
| Operation: | write | Name: | LoadAppInit_DLLs |
Value: 1 | |||
| (PID) Process: | (5160) build.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows |
| Operation: | write | Name: | RequireSignedAppInit_DLLs |
Value: 0 | |||
| (PID) Process: | (5160) build.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer |
| Operation: | write | Name: | SlowContextMenuEntries |
Value: 6024B221EA3A6910A2DC08002B30309D0A010000BD0E0C47735D584D9CEDE91E22E23282770100000114020000000000C0000000000000468D0000006078A409B011A54DAFA526D86198A780390100009AD298B2EDA6DE11BA8CA68E55D895936E000000 | |||
Executable files
3
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5160 | build.exe | C:\Users\admin\AppData\Roaming\Runtime Broker | executable | |
MD5:0D72F3B25099FB35B815B94955C29639 | SHA256:801FE587A5DE43693165001595461B34DC41864838776D9AFA72C690CD6464EC | |||
| 5160 | build.exe | C:\Users\admin\AppData\Roaming\xdwd | executable | |
MD5:0D72F3B25099FB35B815B94955C29639 | SHA256:801FE587A5DE43693165001595461B34DC41864838776D9AFA72C690CD6464EC | |||
| 5160 | build.exe | C:\Windows\xdwd.dll | executable | |
MD5:16E5A492C9C6AE34C59683BE9C51FA31 | SHA256:35C8D022E1D917F1AABDCEAE98097CCC072161B302F84C768CA63E4B32AC2B66 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
29
DNS requests
15
Threats
5
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
8 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
2724 | SIHClient.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
2724 | SIHClient.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.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 |
|---|---|---|---|---|---|---|
736 | RUXIMICS.exe | 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 |
2120 | MoUsoCoreWorker.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6224 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6224 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3260 | svchost.exe | 40.115.3.253:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
2120 | MoUsoCoreWorker.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
8 | svchost.exe | 20.190.159.75:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
8 | svchost.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
2724 | SIHClient.exe | 20.12.23.50:443 | slscr.update.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 |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
20.ip.gl.ply.gg |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2256 | svchost.exe | Misc activity | ET INFO Tunneling Service in DNS Lookup (* .ply .gg) |
2396 | xdwd | Domain Observed Used for C2 Detected | ET MALWARE Generic AsyncRAT Style SSL Cert |
2396 | xdwd | Domain Observed Used for C2 Detected | ET MALWARE Generic AsyncRAT Style SSL Cert |
2 ETPRO signatures available at the full report