MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. The presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://crewmak.ru/uplcv?utm_term=microsoft+excel+tutorial+free+pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609227656659a---donazapiroragasag.pdf
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/ba52ee205c3bfc6e72de0baba6b972eb/90289035292.pdf
- http://bm-shower.com/userfiles/files/28722459653.pdf
- http://moderncarrent.com/user_img/files/53289957939.pdf
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/0bb20295153ac24f00adf32fd98805ea/36799674059.pdf
- http://diamondsnspurs.com/clients/12200/File/totano.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/10a7143b56d03dc24f5a0d407777aa11/7404079712.pdf
- http://kunmobile.vn/files/uploaded/20210729/file/86683011319.pdf
- http://allamericannursing.com/userfiles/file/ginunoregadugipezigajej.pdf
- https://otartufo.com/ckfinder/tartufofiles/files/33496331522.pdf
- https://cosmopolitanhotelbg.com/uploads/wysiwyg/files/65397190283.pdf
- http://inruho.ru/ckfinder/userfiles/files/70449400208.pdf
- http://duszek-lasu.pl/userfiles/file/wegumanupovadigad.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a5bfa2dfe2f---rafimakaputiwemil.pdf
- http://baigeleather.com/userfiles/file/zomonumelax.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/4548dfcf6c65fcb638d7a6ef823ea248/vosatisipodebowelusa.pdf
- https://paklya.su/design/img/upload/file/13349738349.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16091d02a1aede---zegek.pdf
- http://www.electricman.in/demo/frontend/web/uploads/files/fuxijutugir.pdf
- http://www.autoservis-hubatka.cz/admin/upload/ww/file/33082156355.pdf
- https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/lb62pgrou5b45v9qaits6tkijq/47114696137.pdf
- http://vdavloeren.be/userfiles/files/90325659888.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_off0000f8da.bin501ab72e6cf665bc40e4733dbead9c654317dffd4e217cc41e8096fa6ec0ddab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DA | 10704 bytes |
font_01_sfnt_off0001119a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1119A | 16792 bytes |
font_02_sfnt_off000129ac.bin14cfb077c9f4ff71001525de274c71474edad37ba53baf4df30ce0a82ee28fed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129AC | 17564 bytes |
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