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 WordPress sites, suggesting a phishing or malware distribution campaign. The presence of external URIs and link farms on disposable hosting further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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=virtual+learning+commons
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d3e06a1674cb4a876d31a19caac8fbdc/1601309308.pdf
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/78b0cae7e24c8dccf8ffd0b4a35a280f/19811357422.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/6331b0645c86504ecc59208f1d7bf3f7/82466454017.pdf
- http://anthonyvienna.com/sites/default/files/file/tozilakajusagofutot.pdf
- http://waltwhitmanhsclassof1970.com/clients/3/38/385e9ad2c098ba3bcab8db81b262ab1e/File/23859870968.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/c0efaf13b6cfa82cf21137c0e7a18506/96651567271.pdf
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609d2f45c318a---78329332931.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/37610464fd5f44ea720b083622210009/6096848228.pdf
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/os4i8c7sac34421o9e49l30289/nanedapanujar.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a758eaa78---86968380526.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e126dcd15---zemetozokeparuzabiletozi.pdf
- http://md-servicios.com/userfiles/file/74107190878.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608f21044bc9b---ginofilopafalapavisizib.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c69ac312519---99640306531.pdf
- http://beachfirebrands.com/userfiles/file/zifusudobetubusekob.pdf
- http://creativeindustries.ru/uploads/userfiles/file/xivinovibifi.pdf
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfdf6e67faa---gukekul.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d3859e434---13069182009.pdf
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1608dbecfcddf4---napunimopogobanisodibu.pdf
- https://albawadiroad.com/userfiles/files/90260710071.pdf
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160a7ea1ee6395---96468019496.pdf
- http://oresteruggiero.com/userfiles/files/19040137875.pdf
- http://spy-military-labs.com/userfiles/file/nixewegizufejabasa.pdf
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/totipawilexara.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ba14d959e98---magabutovumuvanofozoxul.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_off00010bd8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BD8 | 16792 bytes |
font_01_sfnt_off000123ef.bin18f4665899d2e465cc8d885638fe7d5f3af005320dbf447c802c462b470a4ffd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123EF | 10644 bytes |
font_02_sfnt_off00013c4d.bin84c2637b466c4eddb9b10f9d21e2d78013e0ab77c1a9fdfb64984e84a81c0471 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C4D | 17244 bytes |
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