Is ç¾æ é²ç«è¯ä¹¦26å¹´UL.pdf safe?
No antivirus engine detected this PDF, including all 17 tier-1 engines, though its recent appearance and missing runtime analysis warrant ordinary document caution.
The PDF produced no detections across 75 antivirus engines, with all 17 tier-1 engines also silent and no external-intelligence matches. Confidence is tempered because it is newly observed, has no completed sandbox run, and lacks a complete contacted-host reputation check.
2d89706087bbcf47b7…570852570878d7Recommended next actions
Before opening
Open it only when its sender or download source is one you independently trust.
If you already opened it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
The PDF produced no detections across 75 antivirus engines, with all 17 tier-1 engines also silent and no external-intelligence matches. Confidence is tempered because it is newly observed, has no completed sandbox run, and lacks a complete contacted-host reputation check.
The strongest evidence is the absence of detections across 75 antivirus engines, including all 17 tier-1 engines. Research feeds supplied no YARAify, MalwareBazaar, or CIRCL match, and no heuristic rule fired. The filename’s hidden-character normalization does not indicate an injection attempt and is not treated as a threat signal. No runtime observation was completed, so the file’s execution or document actions cannot be characterized. Its single submission and same-day first appearance reduce historical assurance, while the five prior PDF decisions offer only weak support because they match solely by file type.
What We Detected
None of 75 antivirus engines flagged the PDF, and all 17 tier-1 engines reported no detection. YARAify returned zero matching rules, while MalwareBazaar and CIRCL returned no record. No triggered heuristic or brand mismatch was present.
Threat Behavior
No completed sandbox observation is available, so embedded scripts, document actions, exploit attempts, or network behavior were not observed. The contacted-host reputation check was also unavailable and therefore cannot be treated as evidence of benign networking.
What To Do Now
The static evidence is reassuring, but the file is newly observed and has little reputation history. Open it only if its source and purpose are expected, use an updated PDF reader, and keep endpoint protection enabled.
Where this verdict could be wrong3 caveats
- behaviour=null means the PDF was not dynamically observed, so embedded actions or exploit behavior were not tested at runtime.
- contactedHosts=null means no complete host-reputation result is available.
- The file has only one recorded submission and was first observed today, limiting reputation history.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 0/75 antivirus engines detected a threat
- All 17 tier-1 engines reported no detection
- YARAify matched zero rules
- MalwareBazaar and CIRCL returned no hit
- No heuristic rules fired
- First observed today with only one recorded submission
- No completed runtime sandbox observation
- No complete contacted-host reputation result
- Filename required hidden-character normalization
The file may be opened with an updated PDF reader if it came from an expected source. Keep endpoint protection enabled and avoid enabling embedded content or following unexpected links.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 75 engines flagged the file.
Sandbox
PartialRuntime data is present, but no completed sandbox environment is recorded.
Network
Not runNo contacted-host reputation check is recorded.
No timestamp recordedYARA
CompleteRule evaluation completed with no recorded matches.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime behavior was not available
The report does not treat a missing runtime observation as a clean result.
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 0rule hits recorded
- 0 / 75engines flagged
- 1sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
0 of 75 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
No completed runtime observation is available for this file.
ProvenanceDerivedSourceRuntime coverageObserved at - 03
The hash has been submitted 1 time from 1 source.
ProvenanceDerivedSourceSaved report factsObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
YARA rules
No matchesThe rule pass completed without a saved public match.
0 of 75 engines flagged this file
View all 75 engine results
PE structure
Not applicablePE structure analysis applies to Windows executable formats, not this file type.
How widely this file has been seen
Barely seen in the wild and first surfaced recently. That limits reputation evidence, but rarity alone is not proof of malware.
Fingerprint and provenance
- File name
- ç¾æ é²ç«è¯ä¹¦26å¹´UL.pdf
- Format
- Code signing
- Not applicable to this file type
- Size
- 768.6 KB
- Last analyzed
- Sep 23, 2026, 12:49 PM UTC
2d89706087bbcf47b77b8901c4dee3c0eee8a9b4750de2627e570852570878d7Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
- Recovery step 01
Open it only when its sender or download source is one you independently trust.
- Recovery step 02
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
- Recovery step 03
Keep your antivirus and Windows updates switched on so you stay protected.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is ç¾æ é²ç«è¯ä¹¦26å¹´UL.pdf safe?
What is ç¾æ é²ç«è¯ä¹¦26å¹´UL.pdf?
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Community
Member reviews and reports for this exact file hash.