MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nomylo.ru/uplcv?utm_term=strengthsfinder+2.0+full+pdf+free+download PDF link annotation
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a142211bdc4---towiz.pdfIn PDF document text
- https://edmaker.site/wp-content/plugins/super-forms/uploads/php/files/3cd5dff950ba794ec714bb064ee244f9/50832481083.pdfIn PDF document text
- https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/e0481323daa5019cace9380a25f2922a/josezurilakiwegiwaxew.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d343ea37ca---zujisekir.pdfIn PDF document text
- http://primebrokeragetx.com/ckfinder/userfiles/files/ranulosakedojepaperuru.pdfIn PDF document text
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/703fe319df247d0f5c9c45b743623681/26399402730.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/16090dd0490c53---luxigegal.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/4b85cd8f18f91a5f5730a034f56a4c92/33559636674.pdfIn PDF document text
- http://guides2alpes.fr/uploads/file/30693288047.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160741f122ce3d---84263281718.pdfIn PDF document text
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/6isjq466frgjhbapkl52dmbaek/bobizutonofadokak.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f82745b535---52285871348.pdfIn PDF document text
- https://aimhc.com/userfiles/file/zutiwaxalozoxawonele.pdfIn PDF document text
- http://www.abcklima.hu//data/editorfile/67355670837.pdfIn PDF document text
- https://peterdegendt.be/file/gikekaderitejejolokujone.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16086ff74ca353---16942129464.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_off000105e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105E1 | 5804 bytes |
SHA-256: 6ad12cd228d6808d18fb26344194a4be22d6c930c801084d2aac7de6fa26ed66 |
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font_01_sfnt_off000119b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119B8 | 11820 bytes |
SHA-256: fd75c3ab549724fdb95c8ae33164c58ccfab72bdf059301489003f33241eb98c |
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