MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. It contains numerous links to compromised WordPress sites and other domains, likely serving as a link farm to redirect users to malicious content. The document body, though heavily obfuscated, suggests a lure related to 'online ocr image to text' conversion, aiming to trick users into clicking the embedded malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://krisoc.ru/uplcv?utm_term=online+ocr+image+to+text PDF link annotation
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a847bde9a71---58936738579.pdfIn PDF document text
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16083d1f55778f---5385462148.pdfIn PDF document text
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608205dd65f8d---fufuzolijekurujutel.pdfIn PDF document text
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/nv6ptikvvsic3v0iokotj83611/silelab.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b475f2d08d2---kupenevowomakajunetof.pdfIn PDF document text
- http://amexeuro.com/an3_Uploads/file/duxaponexamaxufiti.pdfIn PDF document text
- http://lideparts.com/userfiles/file/1620600932.pdfIn PDF document text
- http://lookkorea.net/userfiles/file/geputetezusukofogufa.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ab36abf36e3---kerasu.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/1874091978609a57384fd9a.pdfIn PDF document text
- http://ixtvs.de/_upload_bilder/_filemanager/file/34609740754.pdfIn PDF document text
- https://betentour.com/sites/default/files/file/67884759420.pdfIn PDF document text
- https://lymfologi.se/anvandarbilder/221/files/11514384390.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ace29e9a413---32486262672.pdfIn PDF document text
- http://slanfusa.org/clients/47225/File/pegojutupelufalexokil.pdfIn PDF document text
- http://niestachow.pl/data/aktualnosci_imgs/file/fukomarudo.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d7edee176---biwanofovudefo.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_off0000f9d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D3 | 5036 bytes |
SHA-256: 48e6e7b609b76efbb27019fc40a5813ecaf6993d728292d7c9c0ce1177a68649 |
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font_01_sfnt_off00010adf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ADF | 11032 bytes |
SHA-256: 060e15fc30c5533aecdc472efb8b44873309cd18db81bf292f0cb36d7134206f |
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