MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document functions as a link farm, presenting numerous URLs that appear to be compromised CMS uploads or disposable hosting, designed to trick users into downloading further malware. The presence of external URIs and a link farm structure strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://av-jet.ru/userfiles/file/35020040297.pdf In PDF document text
- http://okvin.org/userfiles/file/66337436472.pdfIn PDF document text
- http://britishcytology.org.uk/ckfinder/userfiles/files/nubisofakemasu.pdfIn PDF document text
- https://eletvital.hu/uploads/files/98097212739.pdfIn PDF document text
- https://dispecom.com/cms_dispecom/sgi_userfiles/userfiles/files/fiworukofo.pdfIn PDF document text
- http://szilasfood.hu/pic_upload/files/4575595885.pdfIn PDF document text
- http://etalentlink.com/uploadfile/file///2021090523252597.pdfIn PDF document text
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16130824f09d0b---16486856161.pdfIn PDF document text
- https://madeirashopping.com/userfiles/file/87883991053.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134d8cea6c05---zexataxupawamim.pdfIn PDF document text
- http://edv-denk.com/userfiles/file/68488138627.pdfIn PDF document text
- http://turystyka.powiatlubartowski.pl/admin/ckfinder/userfiles/files/72049424969.pdfIn PDF document text
- https://hunghiephuylog.com/upload/files/41727638313.pdfIn PDF document text
- http://magiepourenfants.com/images/mediamanager/file/3897954263.pdfIn PDF document text
- https://suacuachuyennghiep.com/uploads/files/gisekubakedadoxipo.pdfIn PDF document text
- https://orderpoet.com/ckfinder/userfiles/files/42083043574.pdfIn PDF document text
- https://cungcapthitdetuoi.com/app/webroot/files/images/pages/files/dobitawizurizezomisijiv.pdfIn PDF document text
- http://rsst77.ru/upload/files/gopikun.pdfIn PDF document text
- https://nk-sostanj.si/files/file/81359986679.pdfIn PDF document text
- https://varbackaforskola.se/ckfinder/userfiles/files/zorekezoborupodototeve.pdfIn PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16135c32ae0a0a---5220345791.pdfIn PDF document text
- http://a-xian-coat.com/uploads/files/202109092111435102.pdfIn PDF document text
- http://eugensa.lt/app/webroot/uploads/userfiles/files/jepamorezuxaju.pdfIn PDF document text
- http://dinhviht.com/images/newtech/files/37541101346.pdfIn PDF document text
- http://vertex-decor.com/userfiles/file/tobodevebugir.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=adobe+photoshop+cs4+crackPDF link annotation
- 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_off0000f23f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF23F | 17968 bytes |
SHA-256: 4d932844017b1b287ba9082f2e3394670971c8b3a497cf9fac26d430076cd8e4 |
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font_01_sfnt_off00012092.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12092 | 10660 bytes |
SHA-256: 3fc9322d814c76fce9580c0c05b66ccdf50d9122ab2a3e18c61df907b53e3291 |
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font_02_sfnt_off00013900.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13900 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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