MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many of which point to compromised CMS upload directories on various websites. This structure is indicative of a link farm designed to distribute malicious content or lead users to phishing sites. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9882
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://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/qk1fs57bf74q77ofnss1nbv8sj/25752100351.pdf
- https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/wisepolenedegupijikokurar.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160addac94c5c6---39122823829.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/8743ffe4bfe43b0598512f07d25586b7/2299985250.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/16073371e12fbf---85049807807.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16072b47934cfb---befewopanufajebefobife.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c85dc939f7d---vugonapemajo.pdf
- http://sva-jeanroze.com/xmedia/file/90897436818.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/782lt2hngef9n7sqo7q26iai9o/kegojofokodi.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872c1ea2740---buvimazodepuvifadizariki.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbfbfb153d9---takoragale.pdf
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/c8660f343fd05b818f9782790447f5ca/fujawoxijozazozoporagu.pdf
- http://hsound.ro/images/custom/file/xalusamoro.pdf
- http://vds-construct.pl/userfiles/file/69541080370.pdf
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/onoavi285d6mp6nvt3dfrnrf80/kubeziwijupimilog.pdf
- https://thieumaunao.vn/workspace/develop/uploads/ck_upload/files/64039701262.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/16085dedb142df---jugatum.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/hdist7f6ad3s9nkt8sg779ieaj/77298017539.pdf
- http://gtshotel.it/images/file/fitaf.pdf
- http://kingcraftviet.com/uploads/ckfinder/files/831830231.pdf
- http://northwestpixie-bobs.com/clients/e/e1/e1941a3904c49320334fd90e0ed9e852/File/72493297034.pdf
- https://argumentua.com/i/file/mutikazew.pdf
- http://cupta.org/userfiles/files/20210629121052.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=the+crowning+of+arthur+answers
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013289.binaa210984466e0693a809594a6542211a90ce077e99877de5e56d5b3617e2f007 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13289 | 18960 bytes |
font_01_sfnt_off000163bf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x163BF | 16792 bytes |
font_02_sfnt_off00017bd6.bin845a10949ad7c7639bd469d9be75b7121a98e9770b2df5e9209a42b9e1acd0ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17BD6 | 10716 bytes |
font_03_sfnt_off00019485.binbfc7ce51a1a9b37382af61f0075eb0cdb972126da031002d338643432d80e6e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19485 | 16252 bytes |
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