MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ClamAV as a phishing trojan and contains numerous links to external PDF files hosted on compromised WordPress sites. The heuristic PDF_RANDOM_URL_LINK specifically points to a suspicious URL that is likely part of a campaign to distribute further malware or conduct phishing attacks. No scripts were extracted, but the structure suggests a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 http://cancercareresearch.com/userfiles/file/gilupivivuravu.pdf
- https://seeandhearbetter.ie/img/shop//contents/76016616149.pdf
- http://dohertylaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zejetumagavulifesisobo.pdf
- https://projectmine.hu/ckfinder/userfiles/files/tojajajudebej.pdf
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/0bb476c1bf71073a04bfb91aeca7a87f/wawogumofuposa.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c6313d5252---33237833187.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/c5a969705ccf8f6b40a755a7274182b4/84913656974.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf26de2b104---67065882301.pdf
- https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/f2586a2d7b6441a1deae15a98280b40a/xezenis.pdf
- http://esipro.lu/userfiles/file/xupelojabewum.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/1nl60o503kirrisimjbb37s157/93116964463.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ec200e184---14562592591.pdf
- http://aep-tc.com/cache/fck_files/file/rifopikidekepeler.pdf
- https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c9a76e214---63428575671.pdf
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606f487085c51---73923017720.pdf
- http://thuephotocopytaihanoi.com/upload/files/ramugipaledajapateraj.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608f061d95512---90875234634.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16090b2edb18e2---zidodomun.pdf
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/d8856a9847bf6323172f4b537e6c5e02/28751847760.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/bf2ce240048154cc22eee9406fb25702/nowoditajum.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ab8aae60e31---puvaxupomizapugisekesogoj.pdf
- https://sinarwaja.com/account/files/kenazu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=another+word+for+permeate
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ecc8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC8 | 16792 bytes |
font_01_sfnt_off000104df.bin8711ceca9bed4d15e63c24615770491a82593f73a6b5327e064f157b1b052bf1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104DF | 10524 bytes |
font_02_sfnt_off00011cb0.binc114a1178e42a99d472d504f7734abd086e6e182c38af646f0735053a6c2496e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CB0 | 19428 bytes |
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