MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics suggest it functions as a link farm, pointing to multiple compromised CMS upload locations, likely to host further malicious content. The presence of 'invoice or payment language' combined with these links strongly suggests a phishing or scam lure, aiming to trick users into downloading malicious files disguised as legitimate documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc2f21968a---dirixibunapatadobijivowor.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/d1bcf262520471baa2e215abea4db0ca/31967462841.pdf
- https://synersys.fr/contenu/file/kesafanewu.pdf
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/ctb5g6up251r5not3s677au1m6/mekiramugewoxusovonij.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/qirkr8t3o3s37uq49664qb7g00/89120343173.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cfd55b434---zixusubo.pdf
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/198sc4c18aek12ru76fel08ov5/kujorelenolabeloborula.pdf
- http://arcadia6465.com/clients/f/fc/fcac8d81e62e7f23ed02b02243def538/File/42020390630.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/h27t3i7rh9cjk1vjepgs23vsjr/5791929442.pdf
- http://commune-bourre.com/userfiles/file/32454683131.pdf
- http://schokozentrale.de/idata/tuweroxufo.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/0f3a7967e64defe4fe36ba6a82900637/bufowexulese.pdf
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a975782cb91---86783141324.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/47f43cbab98b374fc1061bac9585b568/80239265473.pdf
- http://engineersclasses4competition.com/files/others/98156258187.pdf
- https://protectname.xyz/whoisprivacy/userfiles/files/zumerut.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c041219c0f5---divujewigigavogejipu.pdf
- http://winteringlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dedoxapus.pdf
- http://clarklawtexas.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/todelalikezazoxupese.pdf
- https://lepjunk12.hu/uploads/files/70655817600.pdf
- http://cuatro-pr.org/sites/default/files/file/wabuzemakojipoxonow.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082bb12e21c6---petenikininate.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/aua1e475pm2j3stohbgmbob0sf/sapavamowarosax.pdf
- http://perchegouet.com/ckfinder/userfiles/files/bevoj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=cuanto+se+paga+de+tenencia+en+el+estado+de+mexico+2021
- 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_off0000eba8.bin55453193bb1794a988e25f522c769161a478ff1657f36e0733da9193f5139dcc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA8 | 11284 bytes |
font_01_sfnt_off00010613.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10613 | 16792 bytes |
font_02_sfnt_off00011e25.bin80d6ea4efa50fc1f24fe6a4d7a7393a9e525c0621509d45877420521b591f5d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E25 | 18556 bytes |
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