MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to external PDF files hosted on a variety of domains, many of which appear to be disposable or compromised. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this is a link farm designed to obscure the true destination or leverage compromised infrastructure. The ML classifier and ClamAV detection further support its malicious nature, likely as a phishing lure or a distribution point for further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://philabc.ru/uplcv?utm_term=doodle+over+poodle PDF link annotation
- http://archbot.pl/files/file/zapazozizemovorirufagumu.pdfIn PDF document text
- https://studyhalltracker.com/files/file/tagasesinajitis.pdfIn PDF document text
- https://www.temtechnologies.fr/ckfinder/userfiles/files/72950993266.pdfIn PDF document text
- http://china-baby-clothes.com/d/files/21505665608.pdfIn PDF document text
- http://www.socfertenviron.org/cmsfile/contentfiles/7007631902.pdfIn PDF document text
- https://oncallanatomist.org/ckfinder/userfiles/files/12948014138.pdfIn PDF document text
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c04e9b847---72839720551.pdfIn PDF document text
- http://industrialdevices.in/uploads/vegoxev.pdfIn PDF document text
- http://koreadramatour.com/FileData/ckfinder/files/20210923_666ABEE82713D89A.pdfIn PDF document text
- http://chingyi.tw/userfiles/files/pesaruludegukunoruridoxel.pdfIn PDF document text
- http://kramor.bg/userfiles/file/zakunezorufakalat.pdfIn PDF document text
- http://naso10.com/userData/board/file/65247835264.pdfIn PDF document text
- http://www.papelerialapiceros.es/ckfinder/userfiles/files/86477181700.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614927d517709---munomozabasiramigage.pdfIn PDF document text
- http://abwcolley.com/uploads/files/59599883782.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614931e32eb48---gewaduzukoxaboni.pdfIn PDF document text
- https://kaptenhoki.org/contents/files/bunajopimakurewi.pdfIn PDF document text
- https://samuelben-horin.com/userfiles/file/zifanalibuwonuke.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/47489476109.pdfIn PDF document text
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/fadopomabezupalip.pdfIn PDF document text
- http://bbbo.handyfriendship.com/upload/files/sojig.pdfIn PDF document text
- http://pensjonatagat.pl/userfiles/file/21207147241.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_off0000b4bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ccd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCD1 | 9828 bytes |
SHA-256: ddabb579b37b07766166b8a4ba17362fca0688ca69a0373984dd913b47bbd3f8 |
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font_02_sfnt_off0000e26b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE26B | 16752 bytes |
SHA-256: 25f161ca5eeeea5d4ae830aa60d819308a6b2b6b614aaa946b648726cd8a56bb |
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