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, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised websites, suggesting a phishing or malware distribution scheme. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, as these indicate the use of link farms hosted on potentially compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://synerhu.ru/uplcv?utm_term=wide+flange+chart
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/9e25b239bb6eb0d09d306a9bf953b437/mewoxanewuvigirel.pdf
- http://big-blue-bus.com/pics/fotos/1/file/28856848675.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160936bb078e1d---fonezidinelokijewomivove.pdf
- https://cr2tek.com/userfiles/Proj_Name//files/91438318768.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c43d8507a0---83165723631.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/2f0f54606fb9746d16b5504eb7b5a439/zaxoninunuwanedi.pdf
- https://semineebrasov.ro/printuri-fi/files/19735094572.pdf
- https://hyundaia.ru/userfiles/file/medafiro.pdf
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160715342aaac4---55360889575.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/q57u0kobudcqkmc7tn3ts8v1o3/98807561517.pdf
- http://westernmaki.com/uploads/files/dagusiriviloxodejoro.pdf
- http://mamnonlittlesun.com/upload/files/lirapudozekiragimumizun.pdf
- http://autohondl.cz/userfiles/file/9438191327.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160d8033ada2ed---nilurajufamip.pdf
- https://digireg.pl/upload/nofogivufekiru.pdf
- http://dharmapremipariwar.org/userfiles/file/47401215233.pdf
- http://digifast.cz/userfiles/48037116830.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075161b86397---68836183669.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca132c1fd5---12951104419.pdf
- http://media-production.net/admin/ckfinder/userfiles/files/nuzonofibozegagaji.pdf
- http://www.ufolep-69.com/contenus/files/zekalonofogipezof.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/8434708b2efa5aa248843ea20c754791/97441732274.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/0c40349601e631e1ea989b46b9b72606/18879421704.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/16079a49c6037c---16737845322.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_off0000f02f.bin574860a41ce7b585b898c1a4049ca039459ca8fc30865898d3743eea5fa7a325 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02F | 17068 bytes |
font_01_sfnt_off00011c91.binc5b53560c6b6b7d1a50d9f3ba31dff71fedbfc12f0baeb4f05558fbc05513e78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C91 | 10460 bytes |
font_02_sfnt_off000133fe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133FE | 16792 bytes |
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