MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, indicating the document is designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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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://laborke.ru/uplcv?utm_term=i+am+james+fortune+lyrics PDF link annotation
- http://rgn2u.com/userfiles/files/98468714074.pdfIn PDF document text
- https://bulendengin.com/upload/ckfinder/files/dulafovoxunusas.pdfIn PDF document text
- http://khachsanmyngoc.com/upload/files/lomipomepunaletosekoriron.pdfIn PDF document text
- https://ecoverservice.be/gallery/file/bokifefopos.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/c7712580df21873e152a7b1e63f21cbe/39546493789.pdfIn PDF document text
- http://sieuthimaynhapkhau.com/upload/files/nivavisusadixisuxasemu.pdfIn PDF document text
- http://nakamurasangyou.jp/app/webroot/uploads/files/fofemuzujamugopolegimi.pdfIn PDF document text
- http://webspace.mysdam.net/images/newsletter/files/putenidusofitedarusebo.pdfIn PDF document text
- http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/bobebiniwijusi.pdfIn PDF document text
- http://dogoducthien.com/uploads/files/11273042093.pdfIn PDF document text
- http://xn--h49al71atridzo.com/userData/board/file/xesezutep.pdfIn PDF document text
- https://basisnomor.com/contents/files/tinugixu.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16147a9f44288a---44941404744.pdfIn PDF document text
- https://rh4-h1tapi-turbo.com/contents/files/36901593960.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142ff1ad7c85---28370622996.pdfIn PDF document text
- http://jongauger.com/userfiles/file/17833088238.pdfIn PDF document text
- https://tecnicadovolante.com/images/file/zonitedevawapa.pdfIn PDF document text
- http://tchid.net/userfiles/file/94317714651.pdfIn PDF document text
- https://vcubusinesssolutions.com/userfiles/file/dukubigilakuverekazoxime.pdfIn PDF document text
- http://krzysztofmalec.pl/gfx/fck/file/80790969482.pdfIn PDF document text
- https://dynasty888.com/image/files/20210908_061943.pdfIn PDF document text
- https://408of53crownstreet.com/assets/media/files/5224364203.pdfIn PDF document text
- http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/94413091083.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b18f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB18F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9A6 | 10792 bytes |
SHA-256: 5a05d4f0e16fa1ab8af5e8f44972a3b944a8125145fc98edd014de9725a81844 |
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font_02_sfnt_off0000e282.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE282 | 14900 bytes |
SHA-256: 23f1689f01ec5da78a391e47a2d26188c009a8c3c4e2cb95c23c624a54c72560 |
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