MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable domains. This structure strongly suggests a link farm designed to redirect users to malicious websites, likely for phishing or malware delivery. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://crysiq.ru/uplcv?utm_term=omg+coloring+pages+printable
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/pf4v5l7d9g2n9r2b3t8ulid2sm/71881562589.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbfdccb1aa2---nefukolesogunijo.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/7j1nuku2v61peb0gi6aueknmpk/83334421208.pdf
- http://beautifulmoda.com/userfiles/files/4384167803.pdf
- http://www.radio-kum.si/data/files/98473984284.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d88a57c3e1---60660745511.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160761abe10587---34798653224.pdf
- https://artbynela.com/uploads/file/83081593728.pdf
- http://tavio.ru/files/file/66941397652.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160845a5269cb6---6546246919.pdf
- http://stillwaterponies83.com/clients/74660/File/50746970318.pdf
- http://hugslock.com/app/webroot/img/files/zobamewomasuvukakaj.pdf
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/e503405b3b5f1dab0c5ca4014f25aada/31859263757.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/291197f9f486f40a3680fe0d1d7cc3c3/81412952997.pdf
- https://a2designbg.com/userfiles/file/mumerajutewuda.pdf
- http://studioaba.net/userfiles/files/5263589276.pdf
- http://emilymillerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dimesedajufunagel.pdf
- http://aihyang.com/userfiles/file/5016910371.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608a26234115d---luvixixalawo.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b12de1d8c7---zibamesizexeragarusebej.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/621d01578053c0755dd64b9a72b366e1/27607351292.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098722d77d04---67872314653.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_off0000d692.binf98983e09ba47eea344a4a842149d51fac5f2f16d2470b759a25489208d3d926 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD692 | 10880 bytes |
font_01_sfnt_off0000ef89.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF89 | 16792 bytes |
font_02_sfnt_off0001079b.bin4fce51e9cbe1102d81b0b427efb6bc1ea35ff6650d028db158c95272191a9e02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1079B | 16676 bytes |
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