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Verdict Suspicious

Analyzed , 5 months ago

Is this PDF document safe? Treat it as suspicious.

MalwareTips staff checked this exact file and rated it Suspicious.

Don't click links in this PDF until the sender confirms it

What to do now5 steps

This PDF may be a phishing lure. Opening it by itself is unlikely to infect your device; the risk is the links inside it.

What to do

  1. Don't click links or buttons in this PDF, and don't enter a password on any page it opens.

  2. Check with the sender using a phone number or email address you already have, not the details in this PDF.

  3. If you typed a password after opening it, change that password now and turn on two-step verification.

  4. If you entered card or bank details, call your bank using the number on your card.

If you already opened it

  1. Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.

Not sure what to do?

Ask the MalwareTips community before you run it. If you already ran it, follow the cleanup guide.

Paste this report's link in your topic so helpers can see what was found.

Checked by MalwareTips staff on Oct 19, 2026
We could not verify where the links in this PDF lead. It has the shape of a common phishing lure: a one-page proposal invitation seen from a single source. If it sends you to a sign-in page (Microsoft, Google, DocuSign or similar), do not enter your password.
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Why we think so

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PDF document d905f6f4: Suspicious — MalwareTips file scan

The link always shows the latest result for this exact file (its SHA-256 fingerprint).

Antivirus results

0 of 63 flagged

  • Flagged 0
  • No detection 63
  • No result 12
FilePDF document104.8 kBSHA-256 d905f6f48cbb…dab558
  • Code signing Not applicable
  • Test run Completed
  • First seen 5mo ago
None of the 63 antivirus engines that checked it flag it.

Chapter 02

Why we think so

The written assessment behind the rating, checked against the scan evidence.

MalwareTips staff review

Staff assessment of this file

The decision below was made by staff for this exact SHA-256 hash.

Analyst conclusion

Staff decision: see the note at the top of the report.

Where this verdict could be wrong1 caveat
  • The staff decision applies to this exact SHA-256 hash; a different build requires a separate review.

These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.

6 sources checked · 5 complete · 1 partial. See every source

Chapter 03

What it did in our test

It ran in our isolated test environment; no test environment rated what it did as risky.

Test run summary

Capture complete
  • 16sandbox rule tags
  • 7spawned processes
  • 2network contacts
  • 25filesystem & mutex artifacts

What the test run showed

What the file did on a test computer

Confirmed in the test run

  • Moderate concern: Checked whether it was running on a test computer.

  • Moderate concern: Hid files or windows on the test computer.

  • Note: Read the user name of the test computer.

  • Note: Talked to servers over the internet during the test run.

  • Note: Read basic details of the test computer, such as its Windows version.

  • Note: Checked which security software was installed on the test computer.

Sandbox labels we could not confirm (common in safe files too)

  • Not confirmed: A sandbox rule tagged this run as password-store access, but nothing touched the Windows password store.

  • Not confirmed: A sandbox rule tagged this run as code injection, but no injected program was recorded.

  • Not confirmed: A sandbox rule tagged this run as weakening security settings; no setting change was recorded.

This file was run on a test computer (a sandbox), not on yours. Labels we could not confirm are listed so you can see them, but they are not treated as evidence against the file.

Recorded behavior

What happened in the test

Grouped by step. The order is not a timeline.

Seen in the test runWorked out from other results

  1. Input file

    The submitted object

    1
    1. Evidence 1 of 7: FileSeen in the test run

      PDF document

      d905f6f48cbb8bb8d8da8b2a14b09f31e23acd8c6c9fbde99a95491179dab558

      Uploaded file

  2. Processes

    What ran

    2
    1. Evidence 2 of 7: ProcessSeen in the test run

      mobsync.exe

      C:\Windows\System32\mobsync.exe -Embedding

      Test run
    2. Evidence 3 of 7: ProcessSeen in the test run

      Acrobat.exe

      "C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" "C:\Users\<USER>\Desktop\PDF document"

      Test run
    3. +1 more recorded observation

  3. Files

    Created or changed

    2
    1. Evidence 4 of 7: Written fileSeen in the test run

      acroNGLLog.txt

      C:\Users\<USER>\AppData\Local\Temp\acroNGLLog.txt

      Test run
    2. Evidence 5 of 7: Written fileSeen in the test run

      NGL

      C:\Users\<USER>\AppData\Local\Temp\NGL\

      Test run
    3. +1 more recorded observation

  4. Network

    Hosts contacted

    2
    1. Evidence 6 of 7: Contacted hostSeen in the test run

      184.29.30.201

      Contacted during the test run.

      Test run
    2. Evidence 7 of 7: Contacted hostSeen in the test run

      23.22.254.206

      Contacted during the test run.

      Test run
    3. +1 more recorded observation

7 facts from the test run. See the full activity list.

Chapter 04

Technical details

None of the 63 antivirus engines that checked it flag it.

Sources checked

Every check behind this verdict

6 sources checked · 5 complete · 1 partial. Complete means the check returned a usable result; it does not mean the file is safe.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompletePositive signal: 0 of 63 engines flagged it · 12 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesCompleteRuntime behaviour was recorded Details for sandbox run
Contacted hostsMalwareTips URL scannerPartial2 hosts contacted in the test run had no completed reputation check Details for contacted hosts
Signature rulesYARAify community rules + MalwareTips rulesComplete2 MalwareTips behaviour rules Details for signature rules
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteNo match

File fingerprint

File name
PDF document
Format
PDF
Size
104.8 kB
Code signing
Not applicable to this file type
Last analyzed
May 12, 2026, 8:57 PM UTC
SHA-256
d905f6f48cbb8bb8d8da8b2a14b09f31e23acd8c6c9fbde99a95491179dab558
SHA-1
eefac54390ef710172af234cca3a07b6b531fb4c
MD5
66257302ddfd482eeb93da32ceacacf9

First scanned Updated

Verdict history

  1. Suspicious
  2. Safeafter a re-check of the saved evidence
  3. Suspiciousclassified by MalwareTips staff

Ratings change when antivirus engines, our checks or MalwareTips staff learn more about a file.

Chapter 05

Questions & answers

Short answers to the 6 questions people ask most about this file.

Is this PDF document safe, or is it malware?
This PDF document may be a phishing lure. None of the 63 antivirus engines that checked it flag it. Don't click links in it or enter a password on a page it opens until the sender confirms they sent it.
What is this PDF document?
This PDF document is about 104.8 kB. Its original file name is hidden on this page for privacy, so we identify it by its SHA-256 fingerprint. VirusTotal first saw it on May 11, 2026.
How many antivirus engines detected this PDF document?
None of the 63 antivirus engines that checked it flag this PDF document. A clean antivirus result is not proof of safety; MalwareTips staff checked this exact file and rated it Suspicious.
What should I do if I already opened this PDF document?
Opening this PDF by itself is unlikely to infect your device. The risk is the links inside it. If you clicked one and entered a password, change it now and turn on two-step verification; if you entered payment details, contact your bank.
What is the SHA-256 hash of this PDF document?
The SHA-256 fingerprint of this PDF document is d905f6f48cbb8bb8d8da8b2a14b09f31e23acd8c6c9fbde99a95491179dab558, and its MD5 is 66257302ddfd482eeb93da32ceacacf9. Two files with the same SHA-256 are identical, so use it to check you have exactly this file, not just one with the same name.
How up to date is this analysis of this PDF document?
This report reflects the scan on May 12, 2026. A file's fingerprint never changes, but antivirus engines keep learning, so a rating can change later. To get a newer result, scan the file again: we refresh the antivirus results when the saved ones are out of date.
Chapter 06

Community

Member reviews and reports for this exact file hash.

Related file reports

Recent reports on other files with the same rating.

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This report and its SHA-256 fingerprint are public, so the next person who checks the same file gets an instant answer; documents and images are listed by type instead of their file name. A file we had not seen before is uploaded to VirusTotal, whose security partners and subscribers can download it; MalwareTips deletes its own copy after the scan. If you ran this file and are worried, scan your device with up-to-date security software.