File scan report
Verdict Safe
Is this PDF document safe? Yes, no threats found.
76 of the 61 antivirus engines that checked it report clean; sandbox shows normal Acrobat Reader activity.
Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
Open the PDF with antivirus protection left enabled; no additional precautions needed.
Good practice2 tips
We found nothing harmful in this file.
Open it only if you trust the person or website it came from.
Keep your security software and system updates switched on.
No scanner can promise a file is 100% safe.
Reads the latest antivirus results for this file's hash. Nothing is uploaded.
Antivirus results
0 of 61 flagged
- Flagged 0
- No detection 61
- No result 15
- Code signing Not applicable
- Test run Completed
- First seen 2y ago
Chapter 02
Why we think so
0 points against it and 3 in its favour, checked against the scan evidence.
The reasoning behind this verdict
The PDF triggered no malicious detections across the antivirus engines. Sandbox execution inside Adobe Acrobat Reader produced only expected reader processes and CDN traffic.
Zero malicious engine detections and zero major flags establish a clean consensus. The single sandbox run shows the file opened inside legitimate Acrobat Reader DC, with network activity limited to Google DNS and Akamai edge IPs. Ten files it created were inspected and none flagged malicious. External intelligence sources returned no hits, and the file’s age and low submission count align with an academic textbook rather than malware.
What We Detected
76 engines scanned the 32 MB PDF; none returned a malicious or suspicious result. Sandbox execution produced only Acrobat Reader CEF processes and standard cache files.
Threat Behavior
Observed MITRE techniques map to normal PDF rendering and font caching. Contacted IPs belong to public DNS and CDN infrastructure, not known control servers.
What To Do Now
The file can be opened safely with current protections enabled. No further action is required.
- Zero malicious detections across 76 engines
- Sandbox behaviour matches legitimate Acrobat Reader
- No malicious files it created or external-intel hits
6 sources checked · 5 complete · 1 partial. See every source
Chapter 03
What it did in our test
It ran in our isolated test environment; no test environment rated what it did as risky.
Test run summary
Capture complete- 4sandbox rule tags
- 3spawned processes
- 2network contacts
- 35filesystem & mutex artifacts
Includes 4 mapped techniques, every process, file, registry and network entry and 7 dropped files.
Show the technical evidenceChapter 04
Technical details
None of the 61 antivirus engines that checked it flag it.
Sources checked
Every check behind this verdict
6 sources checked · 5 complete · 1 partial. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- File name
- PDF document
- Format
- Size
- 32.6 MB
- Code signing
- Not applicable to this file type
- Last analyzed
- Sep 1, 2026, 12:11 PM UTC
- SHA-256
e168b5ba1350ada53dfc9a2310a037e0c9847c03a3800d07b076eb1c120c9dc1- SHA-1
976936c2dea9098ceb2b4d540de1dac90c795a80- MD5
d5b76f53813dd5b32ddcb361ada0c137
First scanned
Includes every engine result (76), 1 matched signature rule and how widely the file has been seen.
Show the technical evidenceChapter 05
Questions & answers
Short answers to the 6 questions people ask most about this file.
Is this PDF document safe?
What is this PDF document?
How many antivirus engines detected this PDF document?
What is the SHA-256 hash of this PDF document?
Is it safe to open this PDF document?
How up to date is this analysis of this PDF document?
Community
Member reviews and reports for this exact file hash.