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://smidgel.ru/uplcv?utm_term=gmat+model+question+paper+pdf PDF link annotation
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/3pjsojc07hb8r24qn5i23hj9oq/61511492259.pdfIn PDF document text
- https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/fbca9bef9842fab4fc148f88ba4c6180/lujimube.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/sunotizesadinoxi.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/c5b2478e54d2120087b4d792b7fc0ae8/bojuliresube.pdfIn PDF document text
- http://rustproofingottawa.com/userfiles/file/54085168449.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/3665368640.pdfIn PDF document text
- http://permanentnimakeup-brno.cz/userfiles/files/71542770555.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a49a645dcdc---37532353772.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/f469ff77a4191530f1bb47a47d0f1716/19312793164.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/u260m8i4dgkud9g3f4qj87e615/57139104819.pdfIn PDF document text
- http://ecole.ru/text/images/file/60165619973.pdfIn PDF document text
- http://spreewaldatelier.de/img/editor/file/2240187635.pdfIn PDF document text
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/8d3d09a137b0ffe7676e2b73a20f88b3/xegirigavamebubipag.pdfIn PDF document text
- http://ahkjt.com/upfile/file/nizidus.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160794ce471fbb---kagakutulanewobukam.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f261bc9bd6---14778175276.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f5b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5B6 | 5228 bytes |
SHA-256: 1d3809f91c3f5c547ec07ea45818406d80922d06df86fe0bf38e5a1edf24b1dd |
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font_01_sfnt_off00010762.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10762 | 11140 bytes |
SHA-256: c29c5e90c986c8f980cee87a7f9b84c815c8561296243798d5b9a8caec4821cf |
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font_02_sfnt_off00012cc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CC1 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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