MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be a lure related to 'informal and formal' concepts, likely a pretext for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://coretry.ru/uplcv?utm_term=what+is+informal+and+formal PDF link annotation
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/cc7699be757a9d4212db70069842e83d/45489352022.pdfIn PDF document text
- http://billsky.ee/files/file/50878423641.pdfIn PDF document text
- http://qtjdb.com/UploadFile/2021/05/27/file/20210527_205114_110.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/b98f88d7c122a305b96496687d280433/jejefarojaki.pdfIn PDF document text
- https://acgroupenterprise.com/userfiles/file/mixetusixefodipapu.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a426e33b609---jefuwofuvo.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/laolg67hqu6rfm43o5i27qljn8/84513795178.pdfIn PDF document text
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606c96009245c---9723934621.pdfIn PDF document text
- https://pametnidom.hr/pametne_kuce/userfiles/file/65749477227.pdfIn PDF document text
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/7aebe2cdb2c98e19eef9e1231e1ccb91/79966371815.pdfIn PDF document text
- http://aelma.com/sites/default/userfiles/file/22894720643.pdfIn PDF document text
- http://ruilong-ironwork.com/CKEdit/upload/files/11563192465.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba9538c6101---14025222386.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/65sevn68lrs1aij04jobkrev0e/8596309257.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef4a2cf12d---jukikos.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/i3908hu9o6d8tn7hpjgeeib5on/82091290759.pdfIn PDF document text
- https://hotel-la-licorne.fr/userfiles/file/78974968085.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000df46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF46 | 5160 bytes |
SHA-256: fe55195b8799d7b60bf1c48dc9afe227c628920e7e326c4b1b0dda6dfe116431 |
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font_01_sfnt_off0000f0b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0B1 | 9676 bytes |
SHA-256: cd82ec79d82c7e3fb2166db3f1fec6f02271274fc10af68a94d6d224ee47f4d9 |
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