MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm to distribute malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, further obscuring its true intent beyond the malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://crysiq.ru/uplcv?utm_term=how+to+save+image+as+pdf+in+android PDF link annotation
- https://pleasanton.com/wysiwygfiles/file/37116402711.pdfIn PDF document text
- https://smg.bid/ckfinder_userfiles/files/11014387741.pdfIn PDF document text
- https://nusbetaja2.com/contents/files/lojijisizebipola.pdfIn PDF document text
- https://mimpiindah2.com/contents/files/zumamivelekijabifijazi.pdfIn PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/050702a3367c5f603b6097f82b4a91ae/86849498477.pdfIn PDF document text
- http://smsalumni1971.com/apadmin/uploads/userfiles/files/67189279649.pdfIn PDF document text
- https://sinarlangit1.com/contents/files/46312205271.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613074a1395e9---jivalinazesifap.pdfIn PDF document text
- http://kotolantopeni.cz/file/poxakivibumovofa.pdfIn PDF document text
- https://excellencetogether.com/img/files/file/bifawo.pdfIn PDF document text
- http://gordostcrista.ru/userfiles/file/wutikijesikupusawemajuwed.pdfIn PDF document text
- https://olterus.info/contents/files/gasinegojo.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe6da8fc93---86837037043.pdfIn PDF document text
- http://co-mit.com/uploads/files/rulakigaru.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/96793528775.pdfIn PDF document text
- http://xn--80aamwn.xn--p1ai/userfiles/file/gaduvivijuwawomiwetegigi.pdfIn PDF document text
- https://mfdesign.hu/files/file/vibox.pdfIn PDF document text
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613976fcc921c---lepamekaxowawegevaguw.pdfIn PDF document text
- http://bzws.zhanyougame.com/ckfinder/userfiles/files/gawimazadabol.pdfIn PDF document text
- http://oldmotorsclub.com/files/file/9715791612.pdfIn PDF document text
- http://probeg2000.ru/files/userfiles/files/zewamuzubaworesumew.pdfIn PDF document text
- http://vipnovini.bg/root/f/uploads/files/nexovidiwasotagevotixi.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c597.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC597 | 10940 bytes |
SHA-256: 8c746161aee6875fcf80f2b0d13c9d13f602597c5537bc759f0398cf32a847c1 |
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font_01_sfnt_off0000debd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEBD | 17596 bytes |
SHA-256: 798b86508778ab0955acb6d52789f644a76025ebe5ce3ce2a1f1b9dc0cdf5711 |
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font_02_sfnt_off00010d0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D0D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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