Is asam-xcp-mcd-1-asap1-universal-measurement-and-calibration-protocol-v1-3-20150501_compress.pdf safe?
Single low-severity engine flag on a 540-day-old PDF with clean sandbox and no malicious children.
One tier-2 engine flagged the PDF with a generic behavioural label while 75 others remained silent. Sandbox execution showed only ambient activity and no malicious children were produced.
d435fa77b7c742a4f9…1a37e4d018bf83Recommended 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.
One tier-2 engine flagged the PDF with a generic behavioural label while 75 others remained silent. Sandbox execution showed only ambient activity and no malicious children were produced.
The single Skyhigh detection is low-severity and unsupported by any tier-1 engine. Sandbox analysis recorded no offensive techniques and produced no malicious dropped files. Direct-IP traffic was observed, but the heuristic rule itself cautions that such traffic occurs in legitimate scenarios and the host-reputation cross-check is incomplete. No external intelligence or similar-hash history contradicts the clean assessment.
What We Detected
76 engines scanned the PDF; only Skyhigh reported a generic behavioural label. No tier-1 engine raised an alert.
Threat Behavior
The sandbox observed ambient file writes and mutex creation consistent with Adobe Reader usage. No malicious processes, persistence mechanisms, or C2 domains were identified. Ten dropped children were inspected and none flagged malicious.
What To Do Now
The file can be opened with standard PDF precautions. Keep endpoint protection enabled and avoid disabling security software.
Where this verdict could be wrong1 caveat
- Direct-IP traffic to 23.32.220.172 and 52.6.155.20 observed without domain context; contactedHosts cross-check incomplete.
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 tier-1 detections
- No malicious sandbox verdict
- No malicious dropped children
- Direct-IP traffic observed without domain context
Open the document with current PDF readers and retain endpoint protection; no further action required.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete1 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
- 33filesystem & 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
asam-xcp-mcd-1-asap1-universal-measurement-and-calibration-protocol-v1-3-20150501_compress.pdf
d435fa77b7c742a4f983f8be5a74f649a74764de7bbf9ba6e71a37e4d018bf83
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\ibration-protocol-v1-pr_20a706d5140e5de39f9f49d0008ce980.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
23.32.220.172
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
- 23.32.220.172
- 52.6.155.20
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\SOPHIA.json
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\SOPHIA\Reader\Files\TESTING
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\Cache\AdobeFnt23.lst.2656
- C:\Users\<USER>\AppData\Local\Adobe\Acrobat\DC\AdobeFnt23.lst.2656
- Local\07EBD858
- 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\A9ei2679_1f8viah_21s.tmp
- C:\Users\<USER>\AppData\Local\Temp\A9ztg1cj_1f8viaj_21s.tmp
- \Sessions\1\BaseNamedObjects\{100184D2-BDC3-477a-B8D3-65548B67914C}_7084
- \Sessions\1\BaseNamedObjects\Local\{100184D2-BDC3-477a-B8D3-65548B67914C}_5224
- \Sessions\1\BaseNamedObjects\Local\Acrobat Instance Mutex
- \Sessions\1\BaseNamedObjects\Global\{100184D2-BDC3-477a-B8D3-65548B67914C}_4168
- \Sessions\1\BaseNamedObjects\com.adobe.acrobat.rna.RdrCefBrowserLock.DC
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
- 5980503beca3678a845a…47c28fNever scannednever seen before
- 81ff65efc4487853bdb4…7c8e06Never scannednever seen before
- a9db3cd9622f268dc111…430db9Never scannednever seen before
- b13f4501766b535c3646…963d5eNever scannednever seen before
- 17c6fdbe2883b7853b19…d0bedbNever scannednever seen before
- e3b0c44298fc1c149afb…52b855Never scannednever seen before
- bdeac7756de21621bbe4…b9b27bNever scannednever seen before
- 693c04b858423934594c…03f54fNever scannednever seen before
- 4b80fc540d086a1f6376…72f94eNever 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
- 1 / 76engines flagged
- 2sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
1 of 76 antivirus engines flagged the file, including Skyhigh.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The hash has been submitted 2 times from 2 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 03
Scanned file: asam-xcp-mcd-1-asap1-universal-measurement-and-calibration-protocol-v1-3-20150501_compress.pdf — d435fa77b7c742a4f983f8be5a74f649a74764de7bbf9ba6e71a37e4d018bf83
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\ibration-protocol-v1-pr_20a706d5140e5de39f9f49d0008ce980.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: 23.32.220.172 — 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.
Evidence23.32.220.172 · 52.6.155.20
1 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
Rarely uploaded, but has been around for a while. Often niche legitimate software or old internal tooling; not a strong malware signal on its own.
Fingerprint and provenance
- File name
- asam-xcp-mcd-1-asap1-universal-measurement-and-calibration-protocol-v1-3-20150501_compress.pdf
- Format
- Code signing
- Not applicable to this file type
- Size
- 2.8 MB
- Last analyzed
- Aug 13, 2026, 3:16 AM UTC
d435fa77b7c742a4f983f8be5a74f649a74764de7bbf9ba6e71a37e4d018bf83Safety & 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 this file safe?
What is this file?
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Community
Member reviews and reports for this exact file hash.