MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, likely intended to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the structure and URL patterns suggest a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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=mario+kart+7+rom+3ds+download
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/0a104624c64b0ce852c8360dbb991d41/70291528577.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1613baf573d64c---7291405538.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/7hk48e2vmmtgqtgdmjpsfvdsnv/34965626733.pdf
- http://cableesmaltado.com/d/files/koxizeloniw.pdf
- https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/vuwetubezilij.pdf
- http://herfon-machinery.com/images/ckfinder/files/20210906105838.pdf
- https://jmclimatizacionhvac.cl/images/subidas/file/89336169625.pdf
- https://ap-qatar.com/userfiles/files/51349741454.pdf
- http://taiwangallant.com/uploads/files/202109160207521036.pdf
- http://klubbelgickychobrov.sk/editor_uploads/files/25267963854.pdf
- http://toyteepee.com/uploadfiles/file/210901004822947889nbaow2.pdf
- http://sivam.pl/files/file/87317705842.pdf
- http://inbeeldt.nl/userfiles/file/fejis.pdf
- https://www.domaine-vrignaud.com/ckfinder/userfiles/files/3654160786.pdf
- http://trongtinpc.com/luutru/files/mimijosewakamijoja.pdf
- https://takarasushimn.com/userfiles/files/74728178131.pdf
- http://goref.ru/files/file/bugumefosavenexejumoxa.pdf
- http://dc-3ed4d7413bdb.prshots.de/uploads/userfiles/1630543941/files/firetomenedarilubisizoka.pdf
- https://upbfassadenbau.com/upload/file/39574688155.pdf
- https://bandotrading.com/uploads/file/gexiruvivujulojodumef.pdf
- http://turinhotelcompany.com/userfiles/files/gugagaluporivu.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/ad1dc4be5a450e895892edfeb5523dd8/28014732290.pdf
- https://zhongzing.com/uploads/files/202109160011072264.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_off0000e999.bine452b0d9ab2cf9cfc5ce7c79f5cb3c61a11a41ccde39917ba4ba2ebe9523d020 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE999 | 18608 bytes |
font_01_sfnt_off000119fe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119FE | 16792 bytes |
font_02_sfnt_off00013215.bin22006db2ea3a930845d0e5c8e60b07536a894875cb50832750e9a72e3406325f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13215 | 10668 bytes |
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