MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress upload storage and other disposable hosting, suggesting it acts as a link farm to distribute malicious content or phish users. The PDF structure and numerous external links point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://crysiq.ru/uplcv?utm_term=what+is+your+career+aspirations+sample+answer PDF link annotation
- https://tecnicadovolante.com/images/file/bunaketaziruru.pdfIn PDF document text
- http://www.reenactmentmarket.eu/images/wyswig_images/file/61022605071.pdfIn PDF document text
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/2f9dfeb2f12bc2049b6652ab70b47115/1487564774.pdfIn PDF document text
- https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/0e4f69e4dcd7832a82837440c5faf8ce/jedemavujokirujebef.pdfIn PDF document text
- https://autosaloncenter.com/uploads/file/pepasitujumugekatosofori.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/o6p64f53ckgf1s8n2k92drcsug/xujurera.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160731896086cd---9768348775.pdfIn PDF document text
- https://sfeerweter.nl/userfiles/files/94370455506.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16090244e4f209---femuporujodawavokepafusof.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/bewojuzeripukuvewo.pdfIn PDF document text
- http://xn--9w3b11kh5l.com/ckupload/files/98043438330.pdfIn PDF document text
- http://forspeed.cz/ckfinder/userfiles/files/wifoturipudulukuzedudo.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086db570ed9e---64186243850.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a25bf1bc54b---jinobesiw.pdfIn PDF document text
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/e3a7e034330f1afd5e5db85849820800/lijutukuzebezulaweka.pdfIn PDF document text
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607061adcf204---mevemusa.pdfIn PDF document text
- https://hophamthaibinh.com/upload/files/29372481109.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aaa6476654---77603752622.pdfIn PDF document text
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/o1rldcj7ffe7s0dr1mji1r8t37/juwozofarugetedu.pdfIn PDF document text
- https://pirkitpadangas.lt/ckfinder/userfiles/files/zifogexinin.pdfIn PDF document text
- http://aj-logistics.com/stock/userfiles/file/76357700815.pdfIn PDF document text
- http://fmi.lu/userfiles/files/97096850777.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4c94c07955---3592718881.pdfIn PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607692f87ec68---wugexaxekomoguxaxerawek.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_off000100f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100F9 | 16504 bytes |
SHA-256: 1a9b412adb3f8410f3f3810ec67a2267a21fa4dbf2f4bb365374119c9a9b6518 |
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font_01_sfnt_off00012bbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BBB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000143d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143D2 | 10932 bytes |
SHA-256: 82f14d083056add90aa31b2ccf8b28e9b85444a82a704d62a54212070ba818bf |
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