MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous external links, many pointing to compromised WordPress upload directories or disposable hosting, indicative of a link farm used for phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the nature of the URLs and the heuristic firings point towards a malicious document designed to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://coretry.ru/uplcv?utm_term=convert+49.5+cm+to+inches
- https://sanipacific.com/attachment/file/94574361120.pdf
- https://locktactyuma.com/userfiles/file/xoxetaxidirile.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078b03987e69---potewenapedin.pdf
- https://dla-pracownika.pl/pliki_user/File/73351847185.pdf
- http://ssteelelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/28618058944.pdf
- http://aroma-es.site/yamituki-n/uploads/files/5718323047.pdf
- http://liebherr-tr.com/userfiles/file/barapexosesozobuti.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd417f2efd---veledowejat.pdf
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093e00c1ad5d---62828196147.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b145f59fe07---52517649907.pdf
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/9190c8882375123306be140382b141a2/72974569027.pdf
- http://www.clc-engineering.com/siteuploads/editorimg/file/35912782834.pdf
- https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/862b5e53989bc40b711c806f2c667521/muwefufodadexipomixuwa.pdf
- http://casaatlantida.com/userfiles/file///9855403194.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1609888e6cc55e---64000705.pdf
- http://sosnovgeo.ru/userfiles/file/pebodava.pdf
- http://gandolfiarchitetti.com/userfiles/files/jinosifoxupitozipefal.pdf
- https://remoteyourstaff.com/calisma2/files/uploads/44421066285.pdf
- http://tfforming.ru/d/files/nanokekebaguso.pdf
- http://aihyang.com/userfiles/file/71574528882.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0267349b3---99774410572.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_off0000d438.bin1d772037004dd88eac861029a8c67a8f67d118bb809b0702e2549138e051f7d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD438 | 17236 bytes |
font_01_sfnt_off000101aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101AA | 16792 bytes |
font_02_sfnt_off000119c1.bin26ed2b6e77d467bc32a05f32486adcb2e0dfa7fde1767097c9540bf256d3f118 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119C1 | 10832 bytes |
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