MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it contains a mass of external links, with one prominent URL pointing to a redirector disguised as a free download. This suggests the document is part of a phishing or SEO spam campaign designed to drive traffic to malicious sites. No scripts were extracted, but the PDF structure itself facilitates the malicious linking.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://seumenha.ru/award?keyword=brebbia+boundary+element+method+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4485454/normal_5fda328375342.pdfIn PDF document text
- https://cdn.sqhk.co/jipodipotaj/fZjeDje/51891642740.pdfIn PDF document text
- https://cdn.sqhk.co/jomonufo/2yjhiel/73336910020.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412774/normal_605c60fb3d80c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454968/normal_6024f11bb2876.pdfIn PDF document text
- https://cdn.sqhk.co/vedimurami/cjiNm8v/divew.pdfIn PDF document text
- https://cdn.sqhk.co/modojiti/gifhcif/dragon_ball_legends_ui_goku_art.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412757/normal_600db9bc60f0a.pdfIn PDF document text
- https://cdn.sqhk.co/diratukuz/Hjfgiid/titutugovigadujosulakobe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/9b403dbd-18c1-410d-9ddb-1682b869a370/praise_and_worship_songs_for_babies.pdfIn PDF document text
- https://d451e762-8e00-4155-9971-9512d28d2528.filesusr.com/ugd/b52961_694e0a8726814f9a9b0486b7476c2f41.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/befafuni/66809480474.pdfIn PDF document text
- https://s3.amazonaws.com/zukogi/hotel_reservation_application_form.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/42024206-ff55-4518-9fc6-54dc81b37b25/gor_books_by_john_norman.pdfIn PDF document text
- https://db244590-af71-4c33-bd6e-2f8f55f31281.filesusr.com/ugd/fdab61_d9411b57d39c49478a2c4fb1bdfc73d6.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8fb7a72e-8f02-4f1c-a935-e5e75207eea9/asus_x205ta_windows_10_update.pdfIn PDF document text
- https://s3.amazonaws.com/dobesogum/ley_de_blanqueo_de_capitales.pdfIn PDF document text
- https://4f65501f-cdae-4966-b9db-49b15ad9d196.filesusr.com/ugd/52b593_7875812cbea040fa8f9b634973a72bd4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dusined/bodycon_dress_formal_dresses.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ada59c93-fc67-40f5-bb36-508ffdc9466c/51168239884.pdfIn PDF document text
- https://7404da97-7fcf-4d5f-9d5f-3f8644e6773a.filesusr.com/ugd/35f767_18051e29202341609cc9886a5542b7b3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tutasujal/sefotusone.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/30f048e2-7586-4377-b0e4-0cfbdc533539/mubetedakonuwowitives.pdfIn PDF document text
- https://s3.amazonaws.com/lodazojamuva/bob_revolution_double_jogging_stroller.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6AE | 5396 bytes |
SHA-256: 79c38a22e0e7059d678a4c74f2a68059c0a3a5cdc9d3149da93d04f916fa2c41 |
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font_01_sfnt_off0000e8df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8DF | 10496 bytes |
SHA-256: 844ff4174c6d405d2d625aff1ab7d3ebb5afae674671841b50fb2228dbf96c65 |
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