MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document that contains a link farm pointing to multiple compromised WordPress upload directories. These links are designed to trick the user into downloading a secondary malicious PDF. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://enjoyisagenix.com/ckfinder/userfiles/files/21097220908.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/e12eikgq4ppbblghe2tm250063/13108902641.pdf
- http://lungshingcentre.com/userfiles/62772439667.pdf
- http://omnoiptv.com/outscapes/admin/ckeditor/uploads/ck/files/52769816535.pdf
- http://creatinglifeoptions.com/userfiles/files/42362003984.pdf
- https://a-guskov.ru/uploads/files/bofosiganisejeno.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16137f9bc1dd7c---29065728156.pdf
- http://palazzodiaz.com/userfiles/files/fugogawotutosawedixok.pdf
- https://cissud.com/uploads/ck_editor/files/sopusiduzinigebexivened.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16132d4ceba6be---12381082302.pdf
- http://moonlightmontessori.com/upload/files/2796181612.pdf
- http://beerskiboot.de/img/upload/file/68560364803.pdf
- http://ipea.kr/userData/board/file/20996710189.pdf
- https://cokhivietuc.com/img-vietuc/files/baligemosebebuxogosi.pdf
- http://audiohrestomatiya.ru/content/file/65991194846.pdf
- http://yingtailong.com/upload/file/210904165215251643bg6pzcvj1454.pdf
- http://print-printonline.com/ckfinder/userfiles/files/rupoxuxu.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134020819f95---repurumipel.pdf
- https://big-affaires.com/img/pics/files/30737531675.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613662b1d7447---58939426726.pdf
- http://bankerz.in/qpic/files/tolebujivebade.pdf
- https://madhubanindiancuisine.com/nbloom/fckuploads/file/nulabuwimofutaj.pdf
- http://cwesp.biz/upload/file/vonigab.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136fa05df07c---7991744420.pdf
- https://chandrakantmusicacademy.org/ckfinder/userfiles/files/xumamavomozuxatage.pdf
- http://goldendoodlesofthesierranevadas.com/userfiles/file/27634359165.pdf
- http://el-system.jp/uploads/2012/files/xelasavujepebiminubef.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=chocolate+donut+cube+world
- 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_off0000e711.binb1b677f867fb959282f010cb4cdacfec474e9bddebc4855b492aac396d4c296c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE711 | 10564 bytes |
font_01_sfnt_off0000ff33.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF33 | 16792 bytes |
font_02_sfnt_off00011745.bina68e0dc9437aa379cc63af7f5ccb3da7d1637cd6e81dfd2f553e3c0b6d5e5392 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11745 | 17712 bytes |
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