MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. Although no scripts were explicitly extracted, the nature of the URLs and the heuristic firings point towards a malicious document designed to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 https://chcial.ru/uplcv?utm_term=career+chart+after+12th+commerce+pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1610411be5f060---65166300889.pdf
- http://thegioidahoacuong.com/uploads/image/files/sokovofofupir.pdf
- http://posicert.com/upload_fck/file/2021-8-9/20210809145812440320.pdf
- https://ascinfratech.com/clientprojects/trading/file/89393714097.pdf
- http://pensionpoint.cz/userfiles/files/46096238889.pdf
- https://stallion-international.com/userfiles/file/83736076484.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160aeaf4a006a3---xozusoxefamiribavux.pdf
- http://foodchemsino.com/d/files/7556601378.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c73d23a323---94171735359.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b61c1cfb2---dejariluw.pdf
- https://syntellect.ru/Repository/file/1150214886.pdf
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/79838421c440c16265d5ae2f8df386d7/zimagesovixawofobuzufu.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088e211bc37d---dupenolukuk.pdf
- https://filetorme.com/upload/files/fularomipepuporikaw.pdf
- http://pokwuttibut.com/file_media/file_image/file/maxafawuku.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/18a2fc322aa9fc842ab5f4c94985ea58/6614564847.pdf
- http://desushibar.com/userfiles/file/wojemaveposemazupebamusem.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb89670017a---pidizasepamisomofupupox.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/7r94a1aslv4n6paalfdd0j1sgr/79484714456.pdf
- http://udaybharat.in/ckfinder/userfiles/files/47623901825.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c89e387a35c---68164125004.pdf
- http://thienlongadv.com/upload/files/64737134713.pdf
- http://jp-cable.com/d/files/wufatunowotisizobeter.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_off0000f3ec.bine9e0b1e3ebab097200af3309b9d6a393b4dba9c2f2e3a5b2975ff217d604e286 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3EC | 16932 bytes |
font_01_sfnt_off00011fec.bin8d86c09d75cd07583922617751367ad94231eaf3a721dd8f0dc883a01dda98cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FEC | 10680 bytes |
font_02_sfnt_off00013886.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13886 | 16792 bytes |
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