MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan delivery mechanism. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, likely serving as a link farm to distribute further malicious content. The document body, though heavily obfuscated, suggests a lure related to 'sound waves' questions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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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://philabc.ru/uplcv?utm_term=multiple+choice+questions+about+sound+waves+with+answers+pdf PDF link annotation
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1d94c7f62---gevirofokujamu.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/7f169384ea1fa19998078eeb25abec75/93383738522.pdfIn PDF document text
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/db44a106155eba0a58effa5c64654a51/jukojitopewiledoru.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/5bp7qrluq45495qfsn827hd09d/17879394833.pdfIn PDF document text
- http://kochamsushi.pl/UserFiles/file/96535707387.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/94b9f2d8e5b6747a3ffa75ff636f8ab5/zapar.pdfIn PDF document text
- https://nbtele.com/en/cache/fck_files/file/35545203844.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/d498f91c9a205fec9ade469ebe87cbfe/24449063942.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160766adce4a90---dimojogerebajulosaso.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4e381051b6---gikelito.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/1151db720ad33a3da621d4c1f10fada9/sunatijusivogitabupinuge.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094a1454736b---wedobor.pdfIn PDF document text
- http://vce34.ru/attachments/file/madadu.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160854b7d246bf---9755726249.pdfIn PDF document text
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/7m01pphq4k4tnvhsn7hd0eqb6e/75276854967.pdfIn PDF document text
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/a722b22aaba8689868e48c76405f5888/91022052260.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d97d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD97D | 5664 bytes |
SHA-256: f46aba6f03f66849908b5221525be216cc140630529c28a5cd00f416828a311b |
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font_01_sfnt_off0000ecdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECDB | 10416 bytes |
SHA-256: 3cd3e16335b5f632ea84fa1337da1083acda4715044c12c2c8eba83ea4f86d4f |
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