MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The file's structure and the nature of the URLs indicate an attempt to lure victims through a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://catamma.ru/uplcv?utm_term=classical+guitar+string+knot PDF link annotation
- http://haiannweb.com/uploads/files/woluri.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614ef16029eda---99866484031.pdfIn PDF document text
- http://www.anaja-inter.org/public/file/92256334937.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/11c58f793094a126e14aa15ec9ecab43/25855162173.pdfIn PDF document text
- http://jcon-aps.dk/userfiles/file/fitadubakawugidanagov.pdfIn PDF document text
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613132a856ef8---vuvodazipixejoweg.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f19e046633---80575575264.pdfIn PDF document text
- http://teusz.pl/UserFiles/file/danusagu.pdfIn PDF document text
- http://parentini.it/userfiles/files/38560456988.pdfIn PDF document text
- https://artinterior.bg/userfiles/file/zigaxufogofupotagem.pdfIn PDF document text
- https://sluganarodu.org/userfiles/files/vogarubip.pdfIn PDF document text
- https://concurs-euclid.ro/upload/fck/gegatuwono.pdfIn PDF document text
- http://seto.cz/uploads/gidiwezenukolekuxubogi.pdfIn PDF document text
- https://bhsbeacon.com/FCKeditor/file/vuxokapiwemugobeno.pdfIn PDF document text
- http://khonggianmang.com/upload/files/gunakutipijexad.pdfIn PDF document text
- https://holocaustresearch.pl/nowy/photo/file/26545328316.pdfIn PDF document text
- http://aqua4you.hu/userfiles/file/ponirojos.pdfIn PDF document text
- http://nfc-lampang.com/user_img/files/15985635371.pdfIn PDF document text
- http://etabetasurvey.com/userfiles/files/44781297549.pdfIn PDF document text
- http://topbondtape.com/uploadss/file/31689512841.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16143715131619---39824114051.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_off0000b16e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB16E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c980.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC980 | 16692 bytes |
SHA-256: 2903f1c2217374d3a867c5bc212ab36f3bc41b8ba2732d165bf8cead42c9c123 |
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font_02_sfnt_off0000f401.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF401 | 10496 bytes |
SHA-256: 081e4cd1c9fa2d990e13e6da4f6ae8eba332122fcef501bf3133ad45b1e6bec9 |
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