Safe
Zero detections across 74 engines on a 1981-day-old PDF with no behavioural or external-intel flags.
59b1f4fd2fc373fe7d…9b9bfce466The verdict, reasoned out.
Not a rules engine. The MT AI Engine reads every signal we collected, weighs them against history, and commits to an answer.
The complete absence of malicious engine detections, combined with a clean external-intel profile and no behavioural artefacts, indicates the file is benign. Its age and PDF format further reduce the likelihood of hidden threats. The low submission count is the only minor uncertainty, but it is outweighed by the unanimous clean consensus from tier-1 engines.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
engines.malicious=0 with 17 tier-1 engines reporting clean
prevalence.classification=rare_old (2 submitters, 6 submissions)
file.fileType=PDF and tags=["pdf","acroform"]
externalIntel.yaraify.ruleCount=0
- Zero malicious detections from 17 tier-1 engines
- No external intelligence hits
- Long history with no prior malicious reports
Treat as safe for normal use; apply standard PDF precautions if the source is unknown.
0 detections across 74 engines
How often this file shows up in the wild
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.
Forensic fingerprint
- File name
- Theory of the Subject.pdf
- Size
- 6.97 MB
- MIME type
- (unknown)
- Detected type
- SHA-256
- 59b1f4fd2fc373fe7d79980cb73ca2658a46aaecece532e00361f09b9bfce466
- MD5
- a8c02f3860ad7e715b9691c6f12b890c
- SHA-1
- c895d55fbed6fa5f6edbf5e1041310ef688404a3
- First seen (VT)
- 2/5/2021, 9:24:48 PM
- Last analysis (VT)
- 2/23/2022, 11:38:09 PM
- First scan (MalwareTips)
- 7/10/2026, 3:14:17 PM
- Last scan (MalwareTips)
- 7/10/2026, 3:14:17 PM
Safety FAQ
Common questions about Theory of the Subject.pdf, answered from the scan data above.
- Theory of the Subject.pdf appears safe. 74 of 74 antivirus engines report it clean. As a habit, only open files you downloaded from the official source, since attackers sometimes distribute trojanised copies of legitimate software under the same name.
- Theory of the Subject.pdf is a document file, about 7 MB. Our analysis found no threat indicators for it. A file's name can be reused by different files, so we identify it by its cryptographic hash (below).
- None — all 74 antivirus engines we queried report Theory of the Subject.pdf as clean. That's reassuring, though brand-new malware can briefly evade detection before vendors add signatures, so we also weigh the file's behaviour and reputation.
- The SHA-256 hash of Theory of the Subject.pdf is 59b1f4fd2fc373fe7d79980cb73ca2658a46aaecece532e00361f09b9bfce466, and its MD5 is a8c02f3860ad7e715b9691c6f12b890c. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
- Based on this scan, yes — Theory of the Subject.pdf shows no threat indicators. The important caveat is source: make sure you downloaded it from the official website or a trusted store, because attackers sometimes distribute malware-laced copies under a legitimate file's name. If your own antivirus flags it while we report it clean, that is most often a false positive, but verify the source before overriding your antivirus.
- This report reflects the scan run on July 10, 2026. Because a file's hash never changes, the identity of Theory of the Subject.pdf is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Reviews & malware reports(0)
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