MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting it's part of a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to 'fundamentals of cost accounting'. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://catamma.ru/uplcv?utm_term=fundamentals+of+cost+accounting+3rd+edition+pdf PDF link annotation
- http://vidol.nl/userfiles/file/83412085117.pdfIn PDF document text
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16080548b99727---satum.pdfIn PDF document text
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae78461c95e---nupapewuz.pdfIn PDF document text
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/ba2cb09090209d24fc82e0520c3c8b25/83682605715.pdfIn PDF document text
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f825d6bc8a---vixomufidoxirutowi.pdfIn PDF document text
- https://webfox.net.au/wp-content/plugins/super-forms/uploads/php/files/6125141bca9ced819cc929d3332b4ecc/30647901620.pdfIn PDF document text
- https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/8c7de219e0f241bc165796baaf0ce74a/jovewifefe.pdfIn PDF document text
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/d563dd7ea0772f0b86f83d579b0976b3/majugutofavopemewadinefi.pdfIn PDF document text
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/ojb2d4486l5i00724fh7kkpse2/5938680233.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ade7cc4d03f---gigakodisubikogopat.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/d21b30a9f9e35b1a607c54676fbf931b/diwufegesedukejaduzuta.pdfIn PDF document text
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607401ba625bf---godepasopupowutado.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608086b6cbcee---29349992380.pdfIn PDF document text
- https://akproauto.com/nbloom/fckuploads/file/nibamowomufazaxizitolus.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_off0001008d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1008D | 5592 bytes |
SHA-256: 8156c6c8f9a8bd08a6fdbc2654fe3f09239bbbb41a22cd5c12cba094ccbebcb2 |
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font_01_sfnt_off0001137f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1137F | 11548 bytes |
SHA-256: 28fcf819a174cf50a716697fef607902df6d393f8e8c127a1f5b23942dab1f9c |
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