MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a non-clustered link farm on disposable hosting, reinforcing the phishing or malware distribution intent. No scripts were extracted, but the structure and heuristics strongly suggest a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b04153857---jonuxoxanamavikuxavudobej.pdf
- http://cke.hk/userfiles/27039943132.pdf
- http://etyekilovarda.hu/userfiles/file/xokazigowitugedigezovin.pdf
- https://gizaviation.com/uploads/files/7055753551.pdf
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f7b19cf15---74454956899.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b0f975e93ef---gidazowap.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/sgnadk5phpgae7ickojt2946l4/55631593279.pdf
- http://bhk-aindling.de/userfiles/files/46765161445.pdf
- https://iwanbim.com/userfiles/files/sibejiwuderemaxatuzivep.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed43c37b42---mizuzavixalemokiz.pdf
- http://ediliziaunoaventi.com/userfiles/files/vejetidemurofi.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/sgds5n6n362r9btfgvg9e2jh1u/26896056822.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/c8fe9a05931472be6f961be1b629b6d6/kamoxomegezokenobaxolal.pdf
- http://netinflux.net/userfiles/file/liviwigoxutovaruva.pdf
- http://riggi.ru/userfiles/file/dalololukamafiguvefiwino.pdf
- http://penzionnakrizankach.cz/ckfinder/userfiles/files/domisilenofizawididesorin.pdf
- http://icbiz.ru/userfiles/file/suviziter.pdf
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b76f6a1bdf1---fatexebudizapon.pdf
- https://ludifrance.fr/userfiles/file/2346265173.pdf
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/df4c1487bc3b759d07fa4c36d70eeb80/fufubabosesinet.pdf
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/8ae1567c322d1b375231bb8f449c3fc2/91178363954.pdf
- http://vin-baietii.ro/ckfinder/userfiles/files/dibefufevejiw.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=vallecular+cyst+in+adults
- 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_off0000c5dc.binb28ffa7f7addff9162b4e470466edb88d4f6f9c9aa1698579c333b10bb07c655 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5DC | 16508 bytes |
font_01_sfnt_off0000f074.binefad404a6c88e1e1fa1991f24864b651e8aea5b26e324e9d049985744ae532ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF074 | 10424 bytes |
font_02_sfnt_off00010833.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10833 | 16792 bytes |
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