MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous external links, many hosted on compromised WordPress sites, suggest a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the PDF structure and link farm indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://chcial.ru/uplcv?utm_term=ifrs+13+pwc+pdf PDF link annotation
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/9ec712612df364d099e7e8353294ed75/42494030552.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dd81a1402ac---raxexezaraxivobamivigeke.pdfIn PDF document text
- http://partner-support.net/user_data/userfiles/files/62686320504.pdfIn PDF document text
- http://alvirne88.com/clients/71477/File/zonebojodiwegazapazijiki.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a100b66fe83---vedapitigidupaj.pdfIn PDF document text
- http://dlzj.net/upload/files/20210626092418136820.pdfIn PDF document text
- http://preciz.com/uploads/wysiwyg/files/kovalevasorobi.pdfIn PDF document text
- http://aaaexpressac.com/userfiles/file/13568870463.pdfIn PDF document text
- http://amindoost.ir/images/upload/files/kabazitevukokonosu.pdfIn PDF document text
- http://profesniprukaz.cz/ckfinder/userfiles/files/furenazafivikameri.pdfIn PDF document text
- http://autoservizimensi.it/images/fck/file/zexovogumopugukir.pdfIn PDF document text
- http://aviafond.ru/userfiles/file/lapezerunamijikefux.pdfIn PDF document text
- http://dogninja.com/userfiles/files/34402004905.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/85923726513.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/3d12b685c9de395b774cb50d5e982b6f/dafisanedet.pdfIn PDF document text
- http://cobe-ing.it/userfiles/files/73606510428.pdfIn PDF document text
- http://arci-mp.fr/admin/File/sevakusulubowixafeki.pdfIn PDF document text
- https://luyenthitoeic.info/userfiles/file/33392307870.pdfIn PDF document text
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b889f823356---lisoniwuguj.pdfIn PDF document text
- http://dongkoo.com/uploads/editor/files/12584074657.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16075b517b3769---sitopi.pdfIn 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c9cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9CD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e1df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DF | 17436 bytes |
SHA-256: ad8c5751a923a1115f17c1c9d95f6bc0ed09537ccf23879c28e44a59769ed1f1 |
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font_02_sfnt_off00010ec6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EC6 | 10120 bytes |
SHA-256: 9c700744e0be1b98cfcffb0006da8233b5c28a0b9911d381cc61728abc99b851 |
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