Is Nicht bestätigt 431084.crdownload safe?
No antivirus engine detected this established JAR, and its completed sandbox run found no malicious outcome despite two concerning behavioral technique mappings.
None of 75 antivirus engines flagged the file, including 17 tier-1 engines, and one completed sandbox run produced no malicious verdict. Its broad historical circulation and fully checked observed hosts add reassurance, although two offensive-technique mappings and unverified Weedhack comments justify retaining normal precautions.
de9f70a762360d136d…46fef30f4c4bdfRecommended 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.
None of 75 antivirus engines flagged the file, including 17 tier-1 engines, and one completed sandbox run produced no malicious verdict. Its broad historical circulation and fully checked observed hosts add reassurance, although two offensive-technique mappings and unverified Weedhack comments justify retaining normal precautions.
The strongest evidence is the complete absence of detections across 75 antivirus engines, with all 17 participating tier-1 engines reporting no detection. The file is established rather than newly observed, having appeared through 319 sources and 373 submissions over more than a year. One completed sandbox run did not return a malicious verdict, and both observed domains were covered by the host-reputation check without a malicious or suspicious match. However, the runtime mapping includes T1543.002 and T1562.001, and four written children remain individually unclassified. Two community annotations allege Weedhack RAT or stealer activity, but those claims have no votes and are unsupported by engine detections, research rules, or malware-feed matches.
What We Detected
The JAR received 0 malicious and 0 suspicious results from 75 antivirus engines. Seventeen tier-1 engines, including Avast, BitDefender, ESET-NOD32, Kaspersky, and Microsoft, reported no detection. The hash also had no MalwareBazaar, CIRCL, or YARAify match, and it has circulated through 319 sources across 373 submissions.
Threat Behavior
One completed sandbox run produced no malicious verdict. Its activity included eight common behavioral mappings and two more concerning mappings, T1543.002 and T1562.001, associated with service modification and defense impairment. Both observed domains were included in the host-reputation check, with no malicious or suspicious cache matches. Four written child hashes were inspected without a malicious result, but their individual verdicts remain unknown.
What To Do Now
The evidence supports ordinary use only when the file came from the expected source and its incomplete-download filename is understood. Keep endpoint protection enabled, verify the intended JAR name and download source, and avoid running it if the unexpected filename or community Weedhack claims do not match what you intended to obtain.
Where this verdict could be wrong4 caveats
- communityComments[0] and communityComments[1] independently label the hash as Weedhack and describe RAT or stealer activity, but both have zero votes and lack corroboration from 75 engines or externalIntel.
- behaviour.offensiveTechniques maps activity to T1543.002 and T1562.001, which can indicate service modification and impaired defenses even though the completed sandbox did not issue a malicious verdict.
- file.reputation=-11 is unfavorable, although reputation alone is weaker than the broad detection and prevalence evidence.
- droppedChildren.rollup reports unknown=4, so hasMaliciousChild=false does not establish that every written child is benign.
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 engines reported malicious or suspicious findings.
- 17 tier-1 engines reported no detection.
- behaviour.hasMaliciousSandboxVerdict=false after one completed sandbox run.
- contactedHosts inspected both observed domains with no malicious or suspicious matches.
- prevalence shows 319 unique sources and 373 submissions over 387 days.
- behaviour.offensiveTechniques includes T1543.002 and T1562.001.
- file.reputation is -11.
- communityComments[0] and communityComments[1] allege Weedhack RAT or stealer activity without independent corroboration.
- droppedChildren.rollup shows four children with unknown verdicts.
- file.fileName ends in .crdownload, indicating an incomplete or interrupted browser download.
Use the file only if it came from the expected source, and verify or complete the download before opening it. Keep endpoint protection enabled and rescan if the hash or final JAR changes.
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
Complete2 contacted hosts were cross-checked.
YARA
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 flight recorder
Capture complete- 1isolated sandbox run
- 10MITRE ATT&CK techniques
- 11spawned processes
- 2network contacts
- 12filesystem & mutex artifacts
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.
- bg.microsoft.map.fastly.net
- cl-glcb907925.gcdn.co
- C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\5644
- C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- C:\ProgramData\Oracle\Java\.oracle_jre_usage\17dfc292991c8786.timestamp
- C:\Users\user\AppData\Local\Temp\hsperfdata_user
- C:\Users\user\AppData\Local\Temp\hsperfdata_user\2644
- C:\Users\user\AppData\Local\Temp\hsperfdata_user\6584
- /tmp/hsperfdata_root/3048
- \Sessions\1\BaseNamedObjects\Local\SessionImmersiveColorMutex
Files this sample writes at runtime
This file drops 4 children at runtime. None are currently flagged malicious in our cache.
- 3f6382ff85df9a06c4ad…bbc059Never scannednever seen before
- ac9e9875dbddd4c86224…627023Never scannednever seen before
- c1de3a9376fdaef0ba6a…308b70Never scannednever seen before
- d87c5f3cdfb5b7c0510e…1ade9eNever 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.
- 0rule hits recorded
- 0 / 75engines flagged
- 319sources 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 319 sources.
Verdict inputView chapterProvenanceDerivedSourceSubmission historyObserved at - 03
The hash has been submitted 373 times from 319 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: Nicht bestätigt 431084.crdownload — de9f70a762360d136d527813a68c3ef55411ff58c4d645852946fef30f4c4bdf
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\<USER>\Desktop\download.jar"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: 5644 — C:\Users\<USER>\AppData\Local\Temp\hsperfdata_<USER>\5644
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: 3903daac9bc4a3b7.timestamp — C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: bg.microsoft.map.fastly.net — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: cl-glcb907925.gcdn.co — Contact observed during runtime.
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.
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
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
- Nicht bestätigt 431084.crdownload
- Format
- JAR
- Code signing
- Not applicable to this file type
- Size
- 6.7 MB
- Last analyzed
- Oct 7, 2026, 9:02 PM UTC
de9f70a762360d136d527813a68c3ef55411ff58c4d645852946fef30f4c4bdfSafety & 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 Nicht bestätigt 431084.crdownload safe?
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Community
Member reviews and reports for this exact file hash.