PDF malware analysis — malicious · d42ed647afefd17c

MALICIOUS

PDF

50.6 KB Created: 2021-03-22 11:21:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 21ffb33f04645811a728cdba33e4341f SHA-1: 4568b47bc01d771cefc688d73a729704849eb97f SHA-256: d42ed647afefd17cb518b1415e0054f9c1db04165c0948f32c364b480c36e47d

144 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size, image-only content, and embedded clickable link. The heuristic 'PDF_IMAGE_LURE' indicates a typical phishing shape where a screenshot hides a button to launch an attacker URL. The presence of numerous external URIs, many on disposable hosting, further supports this, suggesting a link farm designed to obscure the final destination. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest it's designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.7296

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 50 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://gimoguvi.ru/aws?utm_term=gluten+free+baking+course+online
- http://waparudadip.mywebcommunity.org/74094798234.pdf
- https://cdn-cms.f-static.net/uploads/4460983/normal_605591bdeea38.pdf
- http://lisifakus.66ghz.com/33743854101.pdf
- http://surozofawowidom.scienceontheweb.net/71330466771.pdf
- https://zakazorexan.weebly.com/uploads/1/3/1/4/131407051/pigixojupajurud.pdf
- https://jukudedavat.weebly.com/uploads/1/3/0/9/130969580/6978041.pdf
- http://kefets.xyz/suvujinedenanepofchzqh.pdf
- https://zitupakunetod.weebly.com/uploads/1/3/0/7/130739751/1377017.pdf
- http://ribininewo.22web.org/62467550372.pdf
- http://smotrikino.fun/derivative_rules_sheetb13jp.pdf
- http://ewwe.space/kepakomubovutiet5m8.pdf
- https://dudepemak.weebly.com/uploads/1/3/4/7/134702006/lezivoxifufijinujix.pdf
- https://cdn-cms.f-static.net/uploads/4387701/normal_6039b215a03e4.pdf
- http://nususolajegak.iblogger.org/5928231691.pdf
- http://dk-inc.xyz/jewixanqkyec.pdf
- http://butorinowu.myartsonline.com/adobe_acrobat_viewer_apk.pdf
- http://jogekofasi.rf.gd/synonyms_and_antonyms_complete_list.pdf
- http://wixudilasajigil.rf.gd/94743428810.pdf
- http://bekusisit.atwebpages.com/whirlpool_gas_range_parts_diagram.pdf
- http://nirepuxakidogu.rf.gd/suzekobitaveret.pdf
- http://kixugirudi.epizy.com/bacteremia_e_septicemia.pdf
- http://zokitidekav.epizy.com/may_cause_miracles_review.pdf
- http://gexegufikide.epizy.com/jegisawadeju.pdf

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