File scan report
Verdict Safe
Is this PDF document safe? Yes, no threats found.
A textbook PDF that none of the 63 antivirus engines that checked it flagged, with no matches in malware intelligence feeds or researcher rule sets.
Read the whole reasonShow less
Moderate evidence · No engine flags it, but no publisher signature confirms who made it.
The PDF can be opened in an up-to-date reader with antivirus protection kept enabled; avoid enabling scripts or following unexpected embedded links.
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.
Antivirus results
0 of 63 flagged
- Flagged 0
- No detection 63
- No result 12
- Code signing Not applicable
- Test run Not run
- First seen 9mo ago
Chapter 02
Why we think so
2 points against it and 4 in its favour, checked against the scan evidence.
The reasoning behind this verdict
None of the 63 antivirus engines that checked it flagged this PDF, including all reporting major antivirus engines. No the test run was available, so this conclusion rests on static scanning.
The file is a large PDF named after a chemistry textbook, and none of the 63 antivirus engines that checked it flagged it. All 17 major antivirus engines reported it as undetected. External intelligence sources, including malware sample feeds and researcher rule sets, returned no hits. No rule-based rules fired and its original file name (hidden on this page for privacy) contained no disguise or injection patterns. No sandbox run or host-reputation check is available, so behaviour was not observed, but nothing in the static evidence points to a threat.
What We Detected
None of the 63 antivirus engines that checked it flagged this PDF, including major antivirus engines such as Kaspersky, ESET, Microsoft and BitDefender. Malware sample feeds and researcher YARA rules returned no matches, and no rule-based rules fired.
Threat Behavior
No the test run was completed for this document, so its behaviour when opened was not observed. The antivirus analysis found no exploit or malicious script indicators. The file has been known for about nine months with only two submitters.
What To Do Now
The document appears to be an ordinary PDF. Open it in an up-to-date PDF reader with antivirus protection enabled, and be cautious about clicking any embedded links. Note that copies of commercial textbooks from unofficial sources may raise copyright concerns.
Where this verdict could be wrong2 caveats
- No sandbox run was completed, so embedded scripts or links in the PDF were not observed when it ran; static engine coverage is the main basis.
- The file is rarely seen (two submitters), so it has little community history behind it.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- None of the 63 antivirus engines that checked it flagged the file.
- All 17 major antivirus engines reported it undetected.
- No matches in malware sample feeds or researcher rule sets.
- No rule-based rules or disguise patterns were triggered.
- No the test run was available for this document.
- The file is rarely seen, with only two submitters.
6 sources checked · 4 complete · 1 not run · 1 not needed or not applicable. See every source
Chapter 03
Technical details
None of the 63 antivirus engines that checked it flag it.
Sources checked
Every check behind this verdict
6 sources checked · 4 complete · 1 not run · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.
File fingerprint
- File name
- PDF document
- Format
- Size
- 84.5 MB
- Code signing
- Not applicable to this file type
- Last analyzed
- Oct 17, 2026, 1:43 AM UTC
- SHA-256
0e1b533d84d5f8c2747c0a013c34691de8eb68075e93ed233d5c0a7c6b38eea5- SHA-1
98fe6cebe95c5a79027040862055edd6fea77f0c- MD5
ba0366cea63430ec4fb125a1b21db5e3
First scanned
Antivirus consensus
0 of 63 engines flagged this file
12 of the 75 engines returned no result for this file (file type not supported, or the scan did not finish), so they did not check it.
- Tier-118 engines0flagged
- Tier-232 engines0flagged
- Low-trust13 engines0flagged
View all 75 engine results
- AcronisClean
- AhnLab-V3Clean
- AlibabaNo result
- alibabacloudClean
- ALYacClean
- Antiy-AVLClean
- APEXNo result
- ArcabitClean
- AvastClean
- Avast-MobileNo result
- AVGClean
- AviraClean
- BaiduClean
- BitDefenderClean
- BitDefenderFalxNo result
- BkavClean
- CAT-QuickHealClean
- ClamAVClean
- CMCClean
- CrowdStrikeClean
- CTXClean
- CylanceClean
- CynetClean
- DeepInstinctNo result
- DrWebClean
- ElasticNo result
- EmsisoftClean
- ESET-NOD32Clean
- F-SecureClean
- FortinetClean
- GDataClean
- GoogleClean
- GridinsoftClean
- huorongClean
- IkarusClean
- JiangminClean
- K7AntiVirusClean
- K7GWClean
- KasperskyClean
- KingsoftClean
- LionicClean
- MalwarebytesClean
- MaxSecureClean
- McAfeeDClean
- MicrosoftClean
- MicroWorld-eScanClean
- PaloaltoNo result
- PandaClean
- RisingClean
- SangforClean
- SentinelOneClean
- SkyhighClean
- SophosClean
- SUPERAntiSpywareClean
- SymantecClean
- SymantecMobileInsightNo result
- TACHYONClean
- tehtrisNo result
- TencentClean
- TrapmineNo result
- TrellixENSClean
- TrendMicroClean
- TrendMicro-HouseCallClean
- TrustlookNo result
- VaristClean
- VBA32Clean
- VIPREClean
- VirITClean
- ViRobotClean
- WebrootNo result
- XcitiumClean
- YandexClean
- ZillyaClean
- ZoneAlarmClean
- ZonerClean
How widely this file has been seen
Rarely uploaded, and first seen more than two weeks ago. Often niche legitimate software or internal tooling; not a strong malware signal on its own.
Chapter 04
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.