MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm pointing to numerous other PDF files hosted on compromised websites. This structure is indicative of a phishing or malware distribution campaign, where the initial PDF serves as a lure to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/5f21c7da07e9946178eb978d90b99db8/35357551316.pdf
- https://saleskerala.com/ckfinder/userfiles/files/daxufu.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/efjvipkkv2rubotnktro9br096/firipufo.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/77d0a2167b3416863808c6deaa388368/gisilirametixudetada.pdf
- http://rocincorporated.com/domain.com/images/dynamic_pages/file/kexakijim.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/d49a08be431ce802ebba198fab1405d1/62664636137.pdf
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/s551lit7frn2sfb4o3vftupt23/9871612688.pdf
- http://tuzvedo.hu/elemek/file/xujogademigisoleji.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/knem2lvl4o203ulqv99qh1vove/536987956.pdf
- https://cornerstonelaw.eu/userfiles//file/14365628170.pdf
- http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/22442641167.pdf
- http://gyobel.itpublic/file/69257494839.pdf
- https://loctra.net/userfiles/file/85062620949.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082a5379343d---sizofikizabopedati.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/76319bdb489c1dcffb4f382c0787b6cf/24332501368.pdf
- http://studioguatta.it/userfiles/files/2589274359.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/91lls5c0ls5627pjtilillsebf/8100840716.pdf
- http://carrollcountylawyers.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/15832193284.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6fcc56edcb---borimobuxeverimeb.pdf
- http://machinegroup.ru/img/outer/files/mewanawuduvifubipub.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/oeqrejq8d3iv42h78tu5necnm6/56366006794.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/c3e4297ea115911d070c3443de469bcd/tagigesataritun.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/143def3eb18a30111ba4a5c86fc894db/xumegixi.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c467c6bd063---34037592267.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=tool+band+quotes
- 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_off0000efcb.bincccc00934636ebe6a46827f048298b491065b8bd1d186bba27e7d20150f26398 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCB | 10400 bytes |
font_01_sfnt_off00010749.bine9db49ef6d483f8c5bfe38525ad131ae48795799cba4397449e810c9487dc860 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10749 | 17216 bytes |
font_02_sfnt_off0001341d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1341D | 16792 bytes |
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