MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous embedded URLs that point to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, indicating a malicious intent to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
Heuristics 6
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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 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://crewmak.ru/uplcv?utm_term=clever+opposite+word PDF link annotation
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b752347404---xusoruvewaf.pdfIn PDF document text
- https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/83497590737.pdfIn PDF document text
- http://detskaoptika.cz/ckfinder/userfiles/files/93243768171.pdfIn PDF document text
- http://musicupclose.com/clients/f/f7/f7c291dfb329fbc33054893077acf627/File/mixarazox.pdfIn PDF document text
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e0cb3249802a21288d05afcb2b1bd55c/51184086201.pdfIn PDF document text
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/kf1iqcb9lbb6b9oqt04gsj23q5/63363007055.pdfIn PDF document text
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/eddffcdb222881910614b674a8bdaa03/14894015483.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160bc242db4617---71189578178.pdfIn PDF document text
- http://beijingxinzhi.com/userfiles/file/20210510105523_1312173546.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b777a8b63fe---67269893664.pdfIn PDF document text
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a120ce7660---jepisodemopov.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bc7f2280fb2---papolop.pdfIn PDF document text
- https://scalper.ir/data/files/file/dijotibolivab.pdfIn PDF document text
- https://ingmarcomantovani.it/file/69048223526.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/7209cf1a473b92ab174540a2254603b2/38456857101.pdfIn PDF document text
- http://xn--vb0b83rba554gca.kr/page_data/file/20210612085450.pdfIn PDF document text
- http://vladjurnalist.ru/archive/file/gafuzososita.pdfIn PDF document text
- http://straps.by/ckfinder/userfiles/files/30885515807.pdfIn PDF document text
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/50781621802.pdfIn PDF document text
- https://universal4shipping.net/userfiles/file/864905891.pdfIn PDF document text
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/240ed16ca740bc815b9a7e7faf92659a/detuxuwiz.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160d19fb401ec7---48986389666.pdfIn PDF document text
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/h9u1j49nv6h3s13bmcqutrkrr0/vitagigo.pdfIn PDF document text
- https://toskov-yordanov.com/userfiles/file/dowalimoral.pdfIn PDF document text
- http://webinaris.biz/ckfinder/userfiles/publics/files/6238530577.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_off0000ffd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFD9 | 17924 bytes |
SHA-256: 4feaad707afd6551c6b50cf639e616e512cf2e7b5f6c9b064c228a6e5bb5463a |
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font_01_sfnt_off00012ee1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EE1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000146f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146F8 | 10304 bytes |
SHA-256: 740fab5d29921295ab7287ca3515700a13befeff2a723d99de6c761c94cab69c |
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