MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised websites, indicating a link farm designed to lure users to malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery. The presence of multiple distinct hosts and the use of 'utm_term' parameters in some URLs further support the phishing lure hypothesis.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://cructi.ru/uplcv?utm_term=android+checkmark+icon
- https://vivekanandbawwa.com/userfiles/file/mitonutorulifilazubidof.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16138ec84123cf---rinonuparomotitok.pdf
- http://rehahomecare.com/upload/editor/files/65606414621.pdf
- http://lightofislamonair.org/uploads/files/jofinuzugaje.pdf
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/48667399464.pdf
- https://dazhonghua1688.com/ckfinder/userfiles/files/50496389571.pdf
- http://manvilastrust-org.bvirani.com/ckfinder/userfiles/files/piledibuwumevut.pdf
- https://gtselect.fr/ckfinder/userfiles/files/kivisaxipuzat.pdf
- http://botosani.ro/img/uploads/file/damedipugexinabinasix.pdf
- http://sbriz.ru/userfiles/file/woruwadelovurilubu.pdf
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/72849195074.pdf
- https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/metafalozazelofina.pdf
- http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bobit.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16133e6711d0e9---nivelutija.pdf
- http://flairpens.ru/uploads/file/80563669864.pdf
- https://kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/66066412146.pdf
- http://k1a.ru/images/files/file/vatuvikilizevupe.pdf
- https://hockeymro.ca/docs/file/96744472739.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614c7280e5a24---libuwevenalilojugebixuf.pdf
- http://museodegliarazzimarsala.com/userfiles/files/9058722128.pdf
- https://jsptti.com/ckeditor/ckfinder/userfiles/files/61284655619.pdf
- http://mailcontact.jp/uploads/files/71497726331.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_off0000de6c.bind737a4e549ede787765c5d9eecafec2c965ba43f6e250b759f0152226910e59f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE6C | 10396 bytes |
font_01_sfnt_off0000f5b2.bin3e19ce227774ffa4e12e7f179ae66dce8edc80eb246d80881596e500f884c084 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5B2 | 18724 bytes |
font_02_sfnt_off00012631.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12631 | 16792 bytes |
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