| File name: | letter.pdf |
| Full analysis: | https://app.any.run/tasks/3d4a56ae-4cc8-402d-a8fa-18a10aa95926 |
| Verdict: | Malicious activity |
| Threats: | Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. |
| Analysis date: | April 15, 2025, 19:30:58 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/pdf |
| File info: | PDF document, version 1.4, 2 page(s) (zip deflate encoded) |
| MD5: | B30940693D408BF4F7313BA0BF75770B |
| SHA1: | 435EC55481F78840E1C800B320727F4E39D35DA9 |
| SHA256: | 0D1DB9CBB44F18F69BC7F5B73C917BF4B3AE01EDD72889BD6CB3D0EA437C3647 |
| SSDEEP: | 1536:NdmVlBRNnX4COZxepBViIYEWX04h+Gnlzp6tsFyLlwvm:NAVlB7nIFxepBwrEWBh7lZyx8m |
MALICIOUS
Actions looks like stealing of personal data
- cmd.exe (PID: 8004)
SUSPICIOUS
No suspicious indicators.INFO
An automatically generated document
- Acrobat.exe (PID: 2136)
Application launched itself
- Acrobat.exe (PID: 2136)
Manual execution by a user
- cmd.exe (PID: 8004)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| | | Adobe Portable Document Format (100) |
EXIF
| PDFVersion: | 1.4 |
|---|---|
| Linearized: | No |
| ModifyDate: | 2025:04:12 07:52:12+02:00 |
| CreateDate: | 2025:04:12 07:52:12+02:00 |
| Producer: | iText 2.1.7 by 1T3XT |
| PageCount: | 2 |
Total processes
135
Monitored processes
6
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2136 | "C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" C:\Users\admin\AppData\Local\Temp\letter.pdf | C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe | — | explorer.exe | |||||||||||
User: admin Company: Adobe Systems Incorporated Integrity Level: MEDIUM Description: Adobe Acrobat Exit code: 1 Version: 23.1.20093.0 Modules
| |||||||||||||||
| 3192 | "C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" --type=renderer /prefetch:1 "C:\Users\admin\AppData\Local\Temp\letter.pdf" | C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe | — | Acrobat.exe | |||||||||||
User: admin Company: Adobe Systems Incorporated Integrity Level: LOW Description: Adobe Acrobat Exit code: 1 Version: 23.1.20093.0 Modules
| |||||||||||||||
| 7204 | 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
| |||||||||||||||
| 7240 | "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
| |||||||||||||||
| 8004 | "C:\WINDOWS\system32\cmd.exe" | C:\Windows\System32\cmd.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 3221225786 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 8012 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
2 525
Read events
2 387
Write events
130
Delete events
8
Modification events
| (PID) Process: | (2136) Acrobat.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Mappings\S-1-15-2-2034283098-2252572593-1072577386-2659511007-3245387615-27016815-3920691934 |
| Operation: | write | Name: | DisplayName |
Value: Adobe Acrobat Reader Protected Mode | |||
| (PID) Process: | (3192) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\ExitSection |
| Operation: | write | Name: | bLastExitNormal |
Value: 0 | |||
| (PID) Process: | (2136) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AdobeViewer |
| Operation: | delete value | Name: | MaxDoc |
Value: | |||
| (PID) Process: | (2136) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AdobeViewer |
| Operation: | delete value | Name: | MaxApp |
Value: | |||
| (PID) Process: | (2136) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AdobeViewer |
| Operation: | delete value | Name: | PrintToFile |
Value: | |||
| (PID) Process: | (3192) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AdobeViewer |
| Operation: | delete value | Name: | MaxDoc |
Value: | |||
| (PID) Process: | (3192) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AdobeViewer |
| Operation: | delete value | Name: | MaxApp |
Value: | |||
| (PID) Process: | (3192) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AdobeViewer |
| Operation: | delete value | Name: | PrintToFile |
Value: | |||
| (PID) Process: | (3192) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AVEntitlement |
| Operation: | write | Name: | bSynchronizeOPL |
Value: 0 | |||
| (PID) Process: | (3192) Acrobat.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Adobe\Adobe Acrobat\DC\AVGeneral |
| Operation: | write | Name: | uLastAppLaunchTimeStamp |
Value: 988742824 | |||
Executable files
0
Suspicious files
4
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3192 | Acrobat.exe | C:\Users\admin\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Acrobat\SOPHIA.json | binary | |
MD5:837C1211E392A24D64C670DC10E8DA1B | SHA256:8013AC030684B86D754BBFBAB8A9CEC20CAA4DD9C03022715FF353DC10E14031 | |||
| 3192 | Acrobat.exe | C:\Users\admin\AppData\Local\Adobe\Acrobat\DC\IconCacheAcro65536.dat | binary | |
MD5:B5D6A24010E870964F414E7F4B68ED1A | SHA256:AEF884E512141854AD65793637323D980010177DFACE486FABA1915F460540D7 | |||
| 3192 | Acrobat.exe | C:\Users\admin\AppData\Roaming\Adobe\Acrobat\DC\Security\ES_session_store | binary | |
MD5:A036990E2ACA54320B3E9EB3AE28F57F | SHA256:590DFE02709F48F0BA266CF006F527CEC4DE8B5D0B8BAA23E9A0A672B4936FD1 | |||
| 3192 | Acrobat.exe | C:\Users\admin\AppData\Roaming\Adobe\Acrobat\DC\Security\ES_session_storei | binary | |
MD5:85BFE10CFC63D8E2880F7CBF3BAC8D2B | SHA256:32D02B57E2FDE7E7CDDD755DDA1B6C2DFEABDB09F6AE5D1B697F3810431CD9AB | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
30
DNS requests
17
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.48.23.162:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
2924 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
2924 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
4608 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
4608 | 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 |
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 | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 23.48.23.162:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6544 | svchost.exe | 20.190.159.2:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
2112 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
www.bing.com |
| whitelisted |
fp.msedge.net |
| whitelisted |
th.bing.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |