MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or appear to be part of a link farm, suggesting a phishing or malicious redirection scheme. The presence of embedded URLs and the overall structure point towards an attempt to direct users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://infrive.ru/uplcv?utm_term=local+fm+radio+app+for+android+without+internet
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614772fabcbeb---mowijegiluxitopititeje.pdf
- https://il-gusto.com/images/file/lisujozoxemevegatefimoxo.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144682ec45dd---256221.pdf
- http://gazduire-domeniu.com/UserFiles/file/11733193624.pdf
- http://sdes.in/uploads/jipofunibiga.pdf
- http://runnersavezzano.it/public/userfiles/file/wimafamatirugosozo.pdf
- http://volker-issmer.de/userfiles/file/5001459161.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/el4g8o9kacdjhnh92sop2t7sp9/ravetatabubog.pdf
- http://zsmnowakowski.pl/userfiles/file/1512120449.pdf
- http://prestopc.it/upload/file/31535931495.pdf
- https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/muxakabepowekobufi.pdf
- http://suliaok.com/v15/Upload/file/20219131924199472.pdf
- https://semangkamerah.com/contents/files/molavanufudosuzekaze.pdf
- http://silver.jo/ckfinder/blanc/files/giluturixidexov.pdf
- http://psychologyforeverybody.com/ckfinder/userfiles/files/25827437352.pdf
- http://bighost.vn/uploads/userfiles/file/84586986521.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/fj6ol41hiugf0s3f2j53pab253/70153632489.pdf
- http://esangsok.com/upfile/files/padewoladuwunima.pdf
- https://chung-pei.com/userfiles/file/fugarusot.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d28a.bin167a2b811fbab08561a9d44adbd7856f962c4fec3588473318142b6b9c70669e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD28A | 18004 bytes |
font_01_sfnt_off0001017f.bin6d98e67d14d2fc6904aa7d24cb80596ffb739da389235fce1ee941d684d90b92 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1017F | 10860 bytes |
font_02_sfnt_off00011a65.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A65 | 16792 bytes |
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