Is Optimum Kinematics 2023 Free Download Full Download (Free).zip safe?
No antivirus engine or external intelligence source identified malware, although the newly submitted ZIP lacks runtime analysis and established reputation.
None of 74 antivirus engines flagged this ZIP, including 17 tier-1 engines, and no external-intelligence match identified malware. Confidence is moderated because it was first observed today, has only one submission, and has no completed runtime analysis.
d63e781a2c34a721be…4db05a784ef523Recommended next actions
Before opening or extracting
Open or extract it only when its sender or download source has been independently verified.
If you already opened or extracted 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.
None of 74 antivirus engines flagged this ZIP, including 17 tier-1 engines, and no external-intelligence match identified malware. Confidence is moderated because it was first observed today, has only one submission, and has no completed runtime analysis.
The strongest evidence is broad antivirus agreement: 0 of 74 engines detected a threat, including no detections among 17 tier-1 engines. MalwareBazaar, CIRCL, and YARAify supplied no corroborating malware intelligence. The archive is nevertheless new and rare, with only one source and one submission, so its reputation is not established. No completed sandbox observation is available, and no complete host-reputation result exists. Four prior ZIP-format samples received clean assessments, but file-type-only similarity is weak and does not establish shared provenance.
What We Detected
None of 74 antivirus engines flagged the ZIP, and all 17 reporting tier-1 engines returned no detection. MalwareBazaar, CIRCL, and YARAify did not identify a known family or matching research rule.
Threat Behavior
No completed runtime observation is available, so the archive's contents were not observed executing. A complete contacted-host reputation check is also unavailable. The file was first observed today and has only one recorded submission, which limits reputation-based confidence.
What To Do Now
Keep endpoint protection enabled and scan extracted files before opening them. Because the filename advertises a free full download of commercial-looking software, obtain the program from its official publisher or another trusted distribution channel rather than relying solely on the archive's current scan results.
Where this verdict could be wrong4 caveats
- The archive is newly observed and has only one submission, so reputation-based assurance is limited.
- behaviour=null means the archive and any contents were not observed executing.
- contactedHosts=null means no complete host-reputation cross-check is available.
- The four prior safe similarHashes entries match only by file type, which is weak evidence because unrelated ZIP archives share that format.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 0/74 antivirus engines reported a detection
- 17 tier-1 engines reported no detection
- No MalwareBazaar, CIRCL, or YARAify hit
- No brand mismatch was detected
- No malicious family consensus or hacktool label
- First observed today with only one recorded submission
- No completed runtime analysis
- No complete contacted-host reputation result
- Filename suggests an unofficial free download
- Archive contents may require separate scanning after extraction
Keep endpoint protection enabled, extract cautiously, and rescan every contained file before execution. Prefer the software publisher's official download channel, especially because this archive is newly observed.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 74 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 / 74engines 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 74 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 74 engines flagged this file
View all 74 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
- Optimum Kinematics 2023 Free Download Full Download (Free).zip
- Format
- ZIP
- Code signing
- Not applicable to this file type
- Size
- 67.2 KB
- Last analyzed
- Sep 15, 2026, 1:08 PM UTC
d63e781a2c34a721be1d37bd6628ad76366d3f4574805d22224db05a784ef523Safety & 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 or extract it only when its sender or download source has been independently verified.
- 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 this file safe?
What is this file?
How many antivirus engines detected this file?
What is the SHA-256 hash of this file?
Is it safe to open or extract this file?
How up to date is this analysis of this file?
Community
Member reviews and reports for this exact file hash.