MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains a large number of embedded URLs, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content or phishing pages. The presence of external URI indicators and link farm heuristics strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://irlanc.ru/uplcv?utm_term=smurf+village+cheat+apk+download
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/55a28fb8146b7cb38f95b7cb0cecc68b/87599191090.pdf
- https://feldmann-spedition.de/pics/userfiles/file/judimebuwusaze.pdf
- http://ozdesignhouse.com/app/webroot/uploads/files/73471065157.pdf
- http://thegioidahoacuong.com/uploads/image/files/27151622219.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16135377d4124d---xowetepibajam.pdf
- https://bompentax.com/quangbasanpham/app/webroot/upload/image/files/tagez.pdf
- http://ekhoron21.mn/uploads/files/lulitumufazop.pdf
- http://gowowdeli.com/uploads/files/6813822575.pdf
- http://phannhan.vn/files/usersfiles/files/13610850191.pdf
- http://machulski.com/public/file/fanuzadufosaja.pdf
- http://thefarmatarapahoecounty.com/userimages/32675451464.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/161318ca458ea7---51298472239.pdf
- http://madonnina.info/userfiles/files/ruvoz.pdf
- https://babetravelling.com/ckfinder/userfiles2/files/jaxesetutudofif.pdf
- https://halkapsikoloji.com/userfiles/file/10959302524.pdf
- https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/9603800435.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161360ed2bc48d---namofixuva.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139fab19e6af---gemesilesoxiz.pdf
- https://ddc-touggourt.dz/ar/files/8791732475.pdf
- https://zenithoverseas.com/assets/userfiles/files/64851444857.pdf
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b16fe39206---bevodorosizexozubesenotin.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_off0000d487.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD487 | 16792 bytes |
font_01_sfnt_off0000ec9e.bin6c7cb19b23ea03bbc80ffc00ef58a453d9119446e8c38b0951e900dc5a9720db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC9E | 11320 bytes |
font_02_sfnt_off000106e3.bind67a1fb31e67b8509bb0ed1a2ec6b059823edf3e0df885a17cb13ead6cc8184f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106E3 | 18428 bytes |
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