MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as containing links to potentially compromised or disposable hosting, indicative of a link farm. The ML classifier and ClamAV also identified it as malicious, specifically a phishing trojan. The embedded URLs, while some are marked benign, are part of a larger pattern of suspicious link distribution.
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://bienbao.org/uploads/files/43183238668.pdf In PDF document text
- http://zenkatsu.dk/files/60363637420.pdfIn PDF document text
- https://wcfkenzi.com/ckfinder/userfiles/files/kokinasogus.pdfIn PDF document text
- http://architettodrabeni.it/userfiles/files/juzapir.pdfIn PDF document text
- http://dichvumucin.com/upload/ckupload/files/12317981590.pdfIn PDF document text
- http://arcadia-fitness.es/userfiles/file/55819926323.pdfIn PDF document text
- http://101-games.ru/images/uploads/files/21251993634.pdfIn PDF document text
- http://snabsz.ru/ckfinder/userfiles/files/vudevuninowusibidod.pdfIn PDF document text
- http://parfumland.sk/upl/gabugemojuxunowomugedil.pdfIn PDF document text
- https://autopits-directo.migrupoq.com/ckfinder/userfiles/files/soripokibogotituzijataw.pdfIn PDF document text
- http://boxerdapolenta.com/cmsimple/images/file/xavozaleximelugenaxuv.pdfIn PDF document text
- http://kfnmdg.com/upfolder/e/files/20210903114917.pdfIn PDF document text
- https://wickedcheesy.com/images/file/15842862210.pdfIn PDF document text
- https://ixiu-23.com/uploads/files/202109091820135558.pdfIn PDF document text
- http://letnipohar.cz/upload/file/38847534973.pdfIn PDF document text
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/dt6vsp5g6g9j7l6fhov2bninj4/dipowutogaj.pdfIn PDF document text
- http://klccpa.com/userfiles/file/17898764213.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613875748bcce---tavupuvizalotakuz.pdfIn PDF document text
- http://www.kevimotor-rock.hu/files/files/15246536527.pdfIn PDF document text
- http://contextuae.com/resimler/files/27453725646.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309e14a3e6f---pitaxoluxibavupatiburu.pdfIn PDF document text
- http://madiran-cruduparadis.fr/ckfinder/userfiles/files/kadepewakobibojelijewi.pdfIn PDF document text
- http://digivideos.net/ckfinder/userfiles/files/livibavasewodatebewew.pdfIn PDF document text
- http://design-klasse.de/ckfinder/userfiles/files/39684165757.pdfIn PDF document text
- https://jxlmedu.com/file/files/20210902_075045.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=shadow+fight+3+game+hackPDF 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_off0000e18e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE18E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f9a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9A0 | 16700 bytes |
SHA-256: 8104db6bd0f2c1c626a4c45ca66160f93695bfb87202330c5b5e98b4d53c3617 |
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font_02_sfnt_off000124bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124BD | 10928 bytes |
SHA-256: d7b464cf5be8e3936997f86a83827b4b9b704972741eb2776bbf84759614365f |
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