PBE Security Analysis Report

Clean (high confidence)

Disposition

Recommended action: No CAPE indicators were found after filtering. Release is reasonable if the source matches user expectation.

CAPE Raw Score

0.0

unfiltered, includes baseline noise

v0.2 Filtered Score

0.00

noise removed, weighted

Delta

= 0.00

noise correction

This disposition is based on the v0.2 scoring model calibrated against benign Microsoft binaries. It is informational, not a guarantee.

Ticket Response (copy and paste)

Drafted for the requester. Adjust greeting/closing as needed.

Thanks for checking with us on ACKNOWLEDGMENT LETTER.pdf before you opened it.

IT ran the file in our analysis sandbox for 46 seconds. Our analysis rated this at 0.00 out of 10, which we classify as Clean (high confidence). During the analysis, contacted 19 network indicator(s), did not drop any files to disk.

Based on what we observed, this file is reasonable to open if it came from a source you recognize and expected.

Please continue to forward anything you are unsure about. Catching it before you open is exactly the right move.

PBE IT Security

Visual Evidence

1 screenshot(s) captured during analysis. Showing 1. View all in CAPE

frame 0001

What the Sample Did (Plain English)

The sandbox ran the sample for 46 seconds.
0 process(es) were tracked; primary process: none.
Network activity observed: 19 indicator(s). Examples: 23.66.127.140, 48.211.71.198, 74.179.77.204.
No dropped files were captured.

Scoring Breakdown — How we got from 0.0 to 0.00

Score Components

STRONG signatures	0 signature(s), contributed 0.0
UNBACKED family (capped at 2.0)	raw=0.0, applied=0.0
AMBIGUOUS re-amplification	0 signature(s), contributed 0.0 (only fires when 2+ STRONG present)
UNKNOWN signatures (half weight)	contributed 0.0
Detection floor applied?	no
Final v0.2 Score	0.00 / 10

STRONG Signatures (real malicious signal)

No strong signatures.

AMBIGUOUS Signatures (common on benign, can be real)

No ambiguous signatures.

UNBACKED Family (capped — common on asm/JIT code, can be real)

No unbacked signatures.

UNKNOWN Signatures (not yet classified, half weight)

No unknown signatures.

NOISE Signatures (suppressed, score = 0)

No noise signatures.

SHELL_HOST Signatures (suppressed for non-PE samples)

No shell_host signatures.

File Details

File name	ACKNOWLEDGMENT LETTER.pdf
File type	PDF document, version 1.3, 1 page(s)
Size (bytes)	3496197
MD5	f20e08ffa857781f2b4de346d4960b04
SHA1	5cdfdf2b4f2dd0ca2a514c54d55577e23b9bcc50
SHA256	c217d22323a27f49469616d895b0ce16ae729f17904ec1b025af220ac17eb210
VirusTotal	Open in VirusTotal

Sandbox Run Details

Task ID	58
Started	2026-09-10 18:00:44
Ended	2026-09-10 18:01:30
Duration (sec)	46
Package	pdf
Route	internet
Machine	cuckoo2

Tech Override

No override active. The model verdict above is the current classification.

Report generated on 09-10-2026 18:02:02 by PBESANDBOX.PBESECURE.COM