MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that point to compromised CMS upload directories or disposable hosting. These links likely serve as a distribution mechanism for further malicious content or phishing attempts, aligning with the Spearphishing Attachment technique.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://leosservices.com/userfiles/file/12367100704.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc7cbad9c7---fudapuzuxiborazugigifa.pdf
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/5o7g9n6v85rr89rnu5maimsk92/kakogufakidafozew.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fa166150a4---wezuwujonuzosesedunupep.pdf
- http://mdsalon.ru/img/lib/file/59074255881.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a38d48c3488---43162229840.pdf
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/617815663d95c44b0c1cf3c0aec8ceb1/solujupoleguxivuwosok.pdf
- http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609773b5dae1d---xotuxop.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160823d666b0ce---66147515601.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c295a6bd1e3---rujisova.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077d67bbbdb4---66325679736.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/q7dk4r846s1g40ciepla3js8p1/77604687002.pdf
- http://akgikorea.com/file_upload/fck_upfile/file/kotijonudatabupazedidan.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a36bbb63b1e---80406118654.pdf
- http://veivel.com/userfiles/file/79872570558.pdf
- https://chauphongasia.com/wp-content/plugins/super-forms/uploads/php/files/etf6th3bmndp44ep41aplhb29h/pikesekabaxusa.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a08a08d8b5c---29685340929.pdf
- http://mjsolankifoundation.com/fck/imagesfile/diberadepejufa.pdf
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d837d6280---77622131837.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607582abbc6b2---20048736472.pdf
- http://jyjwqj.com/uploadfile/file///2021052116571837.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-5-7/20210507153047950386.pdf
- https://atl-50.com/files/file/koxonito.pdf
- https://acryl-bg.com/userfiles/file/55419813992.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb14ee07b2---88462744824.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=github+pages+template+bootstrap
- 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_off0000b9f6.binf0e44e5c4ea80300caafec768ec2d68381fbd9d60a1e86630a4e59f98c004b63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9F6 | 10872 bytes |
font_01_sfnt_off0000d2dc.binc5984e349c4382c3bbb594e14faacc642577afe23595d8c713cd6b83009f665f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2DC | 16120 bytes |
font_02_sfnt_off0000fc7a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC7A | 16792 bytes |
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