MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a machine learning classifier and ClamAV detection. It contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting it functions as a link farm to distribute phishing content or malware. The presence of embedded URLs and the nature of the heuristics indicate a likely attempt to redirect users to malicious sites, potentially as part of a spearphishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://crysiq.ru/uplcv?utm_term=abigail+williams+selfish+quotes PDF link annotation
- https://raiporjai.com/piceditor/file/kosukogimikikuripereja.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608442cb6e249---80892722112.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/cdd75ce160ad670348296de22ec69a01/mudujepiwavijajalutarep.pdfIn PDF document text
- http://gloucesterclassof81.com/clients/23558/File/tinebogagazuxijuvifalej.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4a702bce4---17427795858.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/zepuzosakinekori.pdfIn PDF document text
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160782d1ebd39c---50799997033.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/9a293e535f49d747aeeff7105029ec35/58839251138.pdfIn PDF document text
- https://bbpartner.cz/userfiles/file/nefudodarolinutori.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/88d3de3dc844c338ce2c109b4006a2ca/10936220118.pdfIn PDF document text
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b8371564ad2---xevapixugix.pdfIn PDF document text
- http://ajtoablakcentrum.com/_user/file/91914219525.pdfIn PDF document text
- https://gadd-asso.org/userfiles/file/40818768.pdfIn PDF document text
- http://salon-urody-bellis.pl/images/file/xexagadoked.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/983a3748f9dfbb6c39642383c71f49a4/xefugexerasagofukotore.pdfIn PDF document text
- http://czdashan.cn/uploadfile/file/2021050222041173499.pdfIn PDF document text
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/aa703f074811d896ca09f64a62303475/25837619222.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/0e1f0e2ab81f0886d1ec25c46c9332ae/buvir.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_off0000f86f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF86F | 5432 bytes |
SHA-256: 931321cdc8ed3b8ac9a05512b6cd9c09707bc8ca37f1b5b3c14f7edee4d0250e |
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font_01_sfnt_off00010add.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ADD | 11720 bytes |
SHA-256: a4bffa8c679275130bd65f54199888c0c5b7b90ed9a41b1372af8736adc54085 |
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