MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple distinct hosts, many of which are identified as compromised WordPress installations. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the ClamAV detection 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0' strongly indicate malicious intent. The primary purpose appears to be directing users to potentially malicious content hosted on these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf7e6a79ba---xetaxujagazoresis.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/o3k8t36d8nlqpaldf05h420k80/xonigebajelanotunege.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076583dbed79---novema.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c289409828a8eead01cc85afbb5ea7c4/naweruliratenorafi.pdf
- http://flightshop.jp/images/blog//file/5518520101.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/fc7022c7978a0c79f51105875a84c703/19435582070.pdf
- https://mytopics.it/uploads/file/34290561810.pdf
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607474d3a9526---34523632199.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/f97bc22e5e4b80ff0bc904f7f83401f3/ridemomimosotozumukosif.pdf
- http://poorclarescork.ie/images/10437285553.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ac23c8a3c---85863574979.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bcb7d1d666b---befivobozulekebaro.pdf
- http://dogoducthien.com/uploads/files/wexedevu.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a486669db16---suxiwunutadorozelon.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/8c3be7faa15a4310989939e8cc6010e5/xulikubanopagozavis.pdf
- https://altonika.pro/files/fck/file/laxubowodowopijusidos.pdf
- http://tokstar.com/_UploadFile/Images/file/38348882903.pdf
- http://anbao.vn/uploads/userfiles/file/36284703737.pdf
- http://nenkin-t.com/upload_img/ck/files/miwomegatama.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae7dec1c06---24384183834.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606e60916f84e---35860054904.pdf
- http://sbnjl.com/userfiles/files/5800202665.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bcebcb12e47---24001701806.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071683717b7e---89886914221.pdf
- http://thestarbusan.net/FileData/ckfinder/files/20210628_E9567AC6028772BC.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=one+to+forty
- 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_off0000c83e.bin72448ab690c92240ee42b7097cf64f447e2555e95959e502be569824db5a3a52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC83E | 9880 bytes |
font_01_sfnt_off0000de2e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE2E | 16792 bytes |
font_02_sfnt_off0000f640.bin01d09997ab3884e635451349c9d251082a2bd8c57a32f63723cb737a25052a7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF640 | 17852 bytes |
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