MALICIOUS
144
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a high-severity heuristic firing for a redirector link, indicating malicious intent. The link, disguised as a free math textbook download, points to an SEO redirector, likely serving as a lure for phishing or further malware delivery. ClamAV also detected this file as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.5627
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://lovig.co.za/XSRYdR1H?utm_term=math+textbook+pdf PDF link annotation
- http://21cedu.com/pds/userfiles/files/2703833399.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/e1e61265f9dffdeb9cda918730d61657/rakiwuvedanezolol.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/161e838a30fadd---lexasakesipokafif.pdfIn PDF document text
- http://azizolace.cz/images/file/43432670570.pdfIn PDF document text
- http://workontext.ru/media/file/85137427013.pdfIn PDF document text
- http://teplo76.ru/uploads/file/78996194757.pdfIn PDF document text
- http://www.pibmg.com.br/ckfinder/userfiles/files/files/lovuxazekisisefowujufusu.pdfIn PDF document text
- https://aspaeng.com/files/image/files/juridutamorube.pdfIn PDF document text
- https://mcsfood.com/images/file/5577345626.pdfIn PDF document text
- http://siva.re/app/webroot/js/kcfinder/upload/files/wewemexuduzuxupugowolajab.pdfIn PDF document text
- https://beauty-full.ru/uploads/files/dejozegodutumadi.pdfIn PDF document text
- http://xn--h1acbpobggs.xn--p1ai/data/files/bafenowefagufunegononuzet.pdfIn PDF document text
- http://shceping.com/upFile/photos/2021-10/file/kowudinofamisolusasom.pdfIn PDF document text
- http://rjt1.org/upload/files/73070224600.pdfIn PDF document text
- http://safetyservicecenters.com/userfiles/file/98105215278.pdfIn PDF document text
- http://kojeneckezbozi.eu/userfiles/file/rilinovititisoneg.pdfIn PDF document text
- http://355353.ru/userfiles/file/40622137928.pdfIn PDF document text
- https://emmaushuis.org/pages/40262200525.pdfIn PDF document text
- http://tecksco.com/upload/files/50021726256.pdfIn PDF document text
- http://naplesredeals.com/userfiles/files/69412563940.pdfIn PDF document text
- https://chinese-wall.tw/upload/files/koxuwirunu.pdfIn PDF document text
- http://vitali-schulz-eiskunstlaufen.de/userfiles/files/20831508138.pdfIn PDF document text
- https://akproauto.com/nbloom/fckuploads/file/rugusegilarixiweputazek.pdfIn PDF document text
- http://www.dreamstoreonline.es/ckfinder/userfiles/files/47991599818.pdfIn PDF document text
- https://mvpartners.be/images/uploadedimages/file/11294707268.pdfIn PDF document text
- http://otvorene-srdce.sk/userfiles/file/lijuvomosubajavim.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_off0006eca3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ECA3 | 16560 bytes |
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9 |
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font_01_sfnt_off000703c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x703C3 | 10412 bytes |
SHA-256: 4758cce586eda2a6ecb68541f8bb3e6a4147b1fb5eae77c183dd4aa7b191fe34 |
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font_02_sfnt_off00071b48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71B48 | 16980 bytes |
SHA-256: 252147768198e9b56e1956a56e035dddfdaae2078399f0e704ecfdf58da4b2dc |
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