Is libcrypto safe?
Safe file assessment
0 of 75 antivirus engines flagged the file.
976ce72efd0a8aeeb6…05947cdb149541Recommended 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.
No saved analyst narrative
This report keeps the verified scan facts available below without inventing an analysis that was not saved with the scan.
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
Complete1 isolated runtime environment contributed observations.
Network
Not runNo contacted-host reputation check is recorded.
No timestamp recordedYARA
Complete1 signature or behavior rule matched.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 18MITRE ATT&CK techniques
- 4spawned processes
- 0network contacts
- 40filesystem & mutex artifacts
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
libcrypto
976ce72efd0a8aeeb6e21ad441aa9138434314ea07f777432205947cdb149541
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Windows\sysnative\rundll32.exe" "C:\Users\<USER>\Desktop\attachment.dll",#1
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Windows\system32\WerFault.exe -u -p 4148 -s 508
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
Temp
C:\ProgramData\Microsoft\Windows\WER\Temp
04Isolated runtime analysis - Written fileObserved
20d1bed9-3757-4387-8155-e7e8371ef456
C:\ProgramData\Microsoft\Windows\WER\Temp\20d1bed9-3757-4387-8155-e7e8371ef456
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
5 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- C:\ProgramData\Microsoft\Windows\WER\Temp
- C:\ProgramData\Microsoft\Windows\WER\Temp\20d1bed9-3757-4387-8155-e7e8371ef456
- C:\ProgramData\Microsoft\Windows\WER\ReportQueue
- C:\ProgramData\Microsoft\Windows\WER\Temp\1d7d2bac-a7eb-4853-b052-cfb5c61a09f6
- C:\ProgramData\Microsoft\Windows\WER\ReportArchive
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER5644.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER5DD6.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER5F1F.tmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER5644.tmp.dmp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WER5DD6.tmp.WERInternalMetadata.xml
- Local\WERReportingForProcess4148
- Global\AmiProviderMutex_InventoryApplicationFile
- Global\c5e8368a-5afa-4fca-977a-2735c16de783
- DBWinMutex
- \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess7124
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- f30b38da8cd556e36f1c…a0ea5fNever scannednever seen before
- 2a77405e04c7e07c0e5c…757486Never scannednever seen before
- c182c23df455e94eb25f…daed64Never scannednever seen before
- 362fcd6c89d5d0bebb38…0613fcNever scannednever seen before
- ea0cfa8e968623b11813…cd95e6Never scannednever seen before
- 823e22ecbe77e72d2c51…e3d841Never scannednever seen before
- a289a786099746cdf2d2…31d186Never scannednever seen before
- 4c598c2eec9f38bc7d12…27e552Never scannednever seen before
- 71d0efdcf3d505d52786…d78c81Never scannednever seen before
- 53d690f150cdca161714…3646d3Never scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 1rule hit recorded
- 0 / 75engines flagged
- 181sources 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
The hash has a long, established submission history across 181 sources.
Verdict inputView chapterProvenanceDerivedSourceSubmission historyObserved at - 03
The file has a valid code signature from Python Software Foundation.
ProvenanceObservedSourceCode-signing metadataObserved at - 04
Scanned file: libcrypto — 976ce72efd0a8aeeb6e21ad441aa9138434314ea07f777432205947cdb149541
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Windows\sysnative\rundll32.exe" "C:\Users\<USER>\Desktop\attachment.dll",#1
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\system32\WerFault.exe -u -p 4148 -s 508
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: Temp — C:\ProgramData\Microsoft\Windows\WER\Temp
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: 20d1bed9-3757-4387-8155-e7e8371ef456 — C:\ProgramData\Microsoft\Windows\WER\Temp\20d1bed9-3757-4387-8155-e7e8371ef456
ProvenanceObservedSourceIsolated runtime analysisObserved 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.
Signatures and behavior heuristics
A community signature or high-severity behavioral heuristic matched. Signatures identify known patterns; heuristics are strong leads but are not proof on their own.
MITRE T1055 (Process Injection) observed — CreateRemoteThread / APC / reflective-DLL injection. The payload is being smuggled into a legitimate process to bypass AV hooks.
Evidence"C:\Windows\sysnative\rundll32.exe" "C:\Users\<USER>\Desktop\attachment.dll",#1
0 of 75 engines flagged this file
View all 75 engine results
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Fingerprint and provenance
- File name
- libcrypto
- Format
- Win32 DLL
- Code signing
- Signature valid: Python Software Foundation
- Size
- 3.3 MB
- Last analyzed
- Jul 11, 2026, 3:55 AM UTC
976ce72efd0a8aeeb6e21ad441aa9138434314ea07f777432205947cdb149541Safety & 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 libcrypto safe?
What is libcrypto?
How many antivirus engines detected libcrypto?
Is libcrypto digitally signed?
What is the SHA-256 hash of libcrypto?
Is it safe to open libcrypto?
How up to date is this analysis of libcrypto?
Community
Member reviews and reports for this exact file hash.