Is End Users Agreement.pdf safe?
A 6-year-old PDF with zero malicious detections across 76 engines and medium prevalence.
All 76 engines returned clean results with 18 tier-1 engines explicitly marking it harmless. The file has been submitted 27 times over six years with no malicious children or sandbox verdicts.
c8a2fe5dd9f49501e5…d21e6b2c852ee4Recommended 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.
All 76 engines returned clean results with 18 tier-1 engines explicitly marking it harmless. The file has been submitted 27 times over six years with no malicious children or sandbox verdicts.
Zero malicious detections from any engine tier combined with a medium-prevalence history spanning 2815 days indicate a long-standing benign document. Sandbox execution produced only ambient techniques and no offensive MITRE activity. The single heuristic trigger notes direct-IP traffic but explicitly requires host-reputation correlation that is unavailable here. No external-intel hits or dropped malicious children exist.
What We Detected
76 engines scanned the PDF; none flagged malicious content. 18 tier-1 engines explicitly returned clean. Sandbox analysis recorded two ambient MITRE techniques and direct-IP contacts, but no offensive techniques or malicious verdicts.
Threat Behavior
No persistence mechanisms, registry modifications, or dropped malicious children were observed. The heuristic rule that fired acknowledges direct-IP traffic can occur in legitimate software and requires further correlation.
What To Do Now
The file shows no malicious indicators. Continue normal handling while keeping endpoint protection enabled.
Where this verdict could be wrong1 caveat
- contactedHosts=null means the reputation cross-check for IPs 8.8.8.8, 18.213.11.84, 23.40.140.168 was not completed; cannot assert clean network behaviour.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Zero malicious detections across 76 engines
- Medium prevalence over six years
- No malicious sandbox verdict or dropped children
The evidence supports treating the file as benign; no additional action is required beyond normal security hygiene.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 76 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial3 runtime contacts were observed without a completed reputation cross-check.
YARA
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
- 2MITRE ATT&CK techniques
- 3spawned processes
- 3network contacts
- 38filesystem & 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
End Users Agreement.pdf
c8a2fe5dd9f49501e5a2ae00496caf6289d490c25ee14897d4d21e6b2c852ee4
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
c:\program files (x86)\adobe\acrobat reader dc\reader\acrocef_1\RdrCEF.exe --backgroundcolor=16514043
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\user\Desktop\manual.pdf
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
SOPHIA.json
C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\SOPHIA.json
04Isolated runtime analysis - Written fileObserved
TESTING
C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\TESTING
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
8.8.8.8
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
18.213.11.84
Contact observed during runtime.
07Isolated runtime analysis - +1 more recorded observation in Analyst mode
7 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.
- 8.8.8.8
- 18.213.11.84
- 23.40.140.168
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\SOPHIA.json
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\TESTING
- Local\080F5200
- Local\06231560
- Local\06232028
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\DC_READER_LAUNCH_CARD
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\ACROBAT_READER_MASTER_SURFACEID
- C:\Users\<USER>\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages-journal
- C:\Users\<USER>\AppData\Local\Temp\A9eyajhp_1okxo5y_26w.tmp
- C:\Users\<USER>\AppData\Local\Temp\A91177bi8_1okxo5z_26w.tmp
- Local\Acrobat Instance Mutex
- DBWinMutex
- \Sessions\1\BaseNamedObjects\{100184D2-BDC3-477a-B8D3-65548B67914C}_6920
- \Sessions\1\BaseNamedObjects\Local\{100184D2-BDC3-477a-B8D3-65548B67914C}_6996
- \Sessions\1\BaseNamedObjects\Local\Acrobat Instance Mutex
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- ad27039abac3252c3b39…37ede5Never scannednever seen before
- 37c73c1a4e115fbc2ca5…96d852Never scannednever seen before
- 102e00a38e471613d085…822948Never scannednever seen before
- 81ff65efc4487853bdb4…7c8e06Never scannednever seen before
- c315b34e3ab465f9cb5d…cc76e3Never scannednever seen before
- e089ddbb841eef930c37…902ae6Never scannednever seen before
- e3b0c44298fc1c149afb…52b855Never scannednever seen before
- 348b85c085a3f320d3cc…f153d3Never scannednever seen before
- a67103485f6ff80eae22…303d78Never scannednever seen before
- 637d06de23cc8f9feb72…6cd482Never 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 / 76engines flagged
- 22sources 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 76 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The hash has been submitted 27 times from 22 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 03
Scanned file: End Users Agreement.pdf — c8a2fe5dd9f49501e5a2ae00496caf6289d490c25ee14897d4d21e6b2c852ee4
ProvenanceObservedSourceUploaded fileObserved at - 04
Observed process — c:\program files (x86)\adobe\acrobat reader dc\reader\acrocef_1\RdrCEF.exe --backgroundcolor=16514043
ProvenanceObservedSourceIsolated runtime analysisObserved at - 05
Observed process — C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\user\Desktop\manual.pdf
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
File written: SOPHIA.json — C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\SOPHIA.json
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: TESTING — C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\TESTING
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
Contacted host: 8.8.8.8 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 18.213.11.84 — 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.
Signatures and behavior heuristics
Behavioral heuristics matched patterns associated with malware. Corroborating evidence determines how much weight they carry.
The sample contacted an external IP address directly and no application domain was recorded. Direct-IP traffic also occurs in legitimate installers and infrastructure, so this is supporting context only and requires corroboration from host reputation and other runtime evidence.
Evidence18.213.11.84 · 23.40.140.168
0 of 76 engines flagged this file
View all 76 engine results
PE structure
Not applicablePE structure analysis applies to Windows executable formats, not this file type.
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- End Users Agreement.pdf
- Format
- Code signing
- Not applicable to this file type
- Size
- 585.7 KB
- Last analyzed
- Aug 26, 2026, 7:49 PM UTC
c8a2fe5dd9f49501e5a2ae00496caf6289d490c25ee14897d4d21e6b2c852ee4Safety & 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 End Users Agreement.pdf safe?
What is End Users Agreement.pdf?
How many antivirus engines detected End Users Agreement.pdf?
What is the SHA-256 hash of End Users Agreement.pdf?
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Community
Member reviews and reports for this exact file hash.