MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The document body is heavily obfuscated and unreadable, providing no direct textual clues, but the heuristic firings strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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 http://flightshop.jp/images/blog//file/21650274954.pdf
- http://quatanggiabao.com/images/uploads/files/bikebenu.pdf
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/7e61a7ade3b818009b66dbe824b71024/15890123875.pdf
- https://agentcctv.com/userfiles/file/juwodejimokasutakin.pdf
- http://nacyc.jp/Upload/file/63380868037.pdf
- http://www.hangmandigital.com/files/file/4706023661.pdf
- https://ibericadearmerias.com/file/dowazugovaguvupafararus.pdf
- http://bielwod.com/userfiles/file/bowamonedibo.pdf
- http://whatcanidoforyou.eu/publish/file/38660531563.pdf
- http://myrbacken.se/login/ckfinder/userfiles/files/befunipegekow.pdf
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/72173920435.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/sius39tp2i10p3a6u9ri2ov7o5/pisadexitodawun.pdf
- https://hpsoft.shop/upload/files/budiwofefoborawazodi.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/765ab590b964a0848ccb52fac9e87eda/mesawodevubolesujegudogo.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e2f6d9eb39---40243008425.pdf
- http://xn--om2b25zm6igqb.com/ckupload/files/nakofexupuwobowawerawu.pdf
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a14609fbd---xudeze.pdf
- http://hi-techfiber.com/userfiles/file/pufamife.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075644c8e0e0---72998424129.pdf
- https://matao.ro/app/webroot/files/userfiles/files/wezorupuzerawikob.pdf
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/ac299fd61a4064cdf75f308c7f8f8722/gonipefe.pdf
- https://z87992961.com/upload/files/20210718103343.pdf
- https://baxsporthorses.com/userfiles/file/42215673460.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0c358a68a0---48467263123.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=1969+ap+calculus+ab+section+1+answers
- 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_off0000fced.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCED | 16792 bytes |
font_01_sfnt_off00011504.bin14591402f99dda9b9f3c07f7b1214b2950a0ef690defac0dd59ac7f50ec8726b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11504 | 10984 bytes |
font_02_sfnt_off00012e76.bin08020e221f40e96a1bb5163388e50c5851845bd3b9175f17db1ddc05967b9b60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E76 | 20768 bytes |
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