MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a large number of embedded URLs, many of which point to compromised CMS upload directories, suggesting an attempt to lure users to malicious sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm strategy, likely for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/dee5b2f04b2e9a0b91e3996ef0d21efd/86831331684.pdf
- http://aggengr.com/uploads/CMS/file/xinawa.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160d33e3ed0ba9---jutuxuvisopodoluxiwi.pdf
- http://pahsclassof2005.com/clients/d/d6/d61c4c031b0f3af13d3e88110ef3a3e1/File/36882881237.pdf
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ca01c440e---80019309058.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/678f78d42e4a7cc8522585c16aa899fc/860027184.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16071162b80f95---noguvudoxusupumeveximoli.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e4a38e309---87200924325.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/10i5bl3s1v2fhvbla877p21853/sekorewebojidujesunus.pdf
- https://balbok.net/admin/ckfinder/userfiles/files/zomovefovepuruzigevazig.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc23b4b587---4447153720.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072943611a14---tugowawavilepipoxunoxeb.pdf
- http://gulfcoolcontracting.com/uploads/userfiles/file/file/sasarabalopupadafo.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/ca9cdbffb29625503b0f0ca54455ae02/zepux.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/70c4b1fb7acf8316994e243010579942/73564646855.pdf
- https://anmimar.com/royal/userfiles/file/33102423938.pdf
- http://taeguektour.com/FileData/ckfinder/files/20210609_DCA1F5C2A682D6CC.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/160924954396a1---toridajulameb.pdf
- http://skrabl.pl/www/rpbd/fck/file/41570965150.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/d80683c36989c25acad7bd3c87930357/12129681385.pdf
- https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/160837386d9e0e---subiwijefu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=marvel+movies+in+the+order+they+should+be+watched
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/4a9d44e4027873758a31fdcae6ec2d61/xabunoxon.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_off0000faca.binb43232946e4b3a63ab8f5cebc874fcc0a2593fc7b955b6e65f9e523ee08fcb32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFACA | 17128 bytes |
font_01_sfnt_off00012790.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12790 | 16792 bytes |
font_02_sfnt_off00013fa7.bin1e4b8e67c86645217938e8d3f5a2a74c349dda1d5cc858aaaf48289a20326902 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FA7 | 11132 bytes |
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