MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to a link farm, a common technique for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple compromised CMS upload links and disposable hosting further supports a malicious purpose, likely to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://queure.ru/uplcv?utm_term=christie+brinkley+lampoon+vacation
- http://dchs80.com/clients/c/cb/cbc185099defa3274d3d4f74835fd64f/File/fowakugoxuregawaxir.pdf
- http://hart-metale.pl/gimnazjum/userfiles/file/30893198395.pdf
- http://geyikkimya.com/userfiles/upload/file/kilepedawidake.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16098a4e9f3959---pefok.pdf
- https://www.epicbrands.co/wp-content/plugins/super-forms/uploads/php/files/003defd5abe002149c38a5b4c460d17e/kiwuxune.pdf
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/56368408b5d63918826a6a63a66142dc/47215423216.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16092bd2d0b5d2---87305509324.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/ee0gok8h501i3vcuh2ef74rsbl/36381684565.pdf
- http://thunderstar.cn/userfiles/file/20210515091435350077973.pdf
- http://www.ecostroyservis.ru/File/4002192738.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/d1471e4cc695b15057e1c6959c588cd6/26797645980.pdf
- http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/feviguvak.pdf
- http://sh-ruiyangcpa.com/userfiles/file/2021-6///20216231450362182.pdf
- https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/1ut2trmih0ci10ge5e633enbum/giruwiwovapoju.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/50d36b4ff3ae42d66efff93437792621/minosade.pdf
- https://publicbridge.pl/userfiles/file/66383369219.pdf
- http://inimtrento.it/userfiles/files/watevijegitavepodupej.pdf
- http://ctyrkolky-gamax.cz/data/dokumenty/92811267192.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a9e5d8e01---9149517179.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/7f098296afc061bcc6f45d5ef172ad4a/dakosate.pdf
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/q79mhnjj04lit6k8doj5e19gj2/butatanejixudab.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/f39dd358ef09ec8b041a0685c2d5894a/79313640219.pdf
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d2c8f9e9ee---daxipifiwezox.pdf
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/b3a3490b12ff88bd397a02ef3810e3c6/katexenazalopebas.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/29562f24b1a77b96732da1448281704e/laxijalusomofubarer.pdf
- http://www.flamanville-76.fr/upload/file/gibabivu.pdf
- 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_off0000c5a4.bin8eae64dc27f6a8859b630d55998c2e00e1f17edb0903bc8d73b0e16ac8bba683 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5A4 | 11084 bytes |
font_01_sfnt_off0000df20.bin6d3c5dcfb8b68160e53e85be8b71fb3c1fc9dfc7d7c11055e2c95c7a9210af6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF20 | 17036 bytes |
font_02_sfnt_off00010bc9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BC9 | 16792 bytes |
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