MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
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, routes users through malicious redirector infrastructure 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 0.9997
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/wix?keyword=gas+dynamics+john+and+keith+3rd+edition+pdf+free In PDF document text
- http://autocredit.moscow/suweninebofuseni0opgm.pdfIn PDF document text
- https://cdn.sqhk.co/neratimo/WnXhfLa/heavy_metal_radio_stations_online_free.pdfIn PDF document text
- https://cdn.sqhk.co/vetedaxuzele/Uhejbjo/lock_screen_windows_10_registry_key.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501634/normal_5ff7ba06880a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421224/normal_60228e3c7623b.pdfIn PDF document text
- https://cdn.sqhk.co/dabozijide/bphe4ih/4d_wallpaper_2020_pro_apk.pdfIn PDF document text
- https://cdn.sqhk.co/waladoved/dihsxWm/gatemipor.pdfIn PDF document text
- http://ruvaruvifovuk.iblogger.org/bunnings_cement_sheet_weatherboards.pdfIn PDF document text
- http://figupatofewox.iblogger.org/terebimerevos.pdfIn PDF document text
- https://cdn.sqhk.co/repudodo/iicjhuT/adventures_of_stickman_apk_mod.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4449600/normal_5ffd460b3c5ea.pdfIn PDF document text
- http://lavkavkusa.store/396517967050si73.pdfIn PDF document text
- http://potenciy.xyz/metal_gear_solid_2_hd_apk2tsp8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412160/normal_601fc7623b3e3.pdfIn PDF document text
- http://tb-films.ru/denematezitvuh1g.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459805/normal_5fecb7aa60a77.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tunenijexe/amoeba_sisters_osmosis_answer_key.pdfIn PDF document text
- https://s3.amazonaws.com/legapatatezisa/99790338175.pdfIn PDF document text
- https://s3.amazonaws.com/jajoxulabojaso/platelet_transfusion_guidelines_in_neonates.pdfIn PDF document text
- https://s3.amazonaws.com/zedudo/jolelopevunepituj.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://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_off0000dbd6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBD6 | 5800 bytes |
SHA-256: 8c76208cb3d674f0cce78e9c77020adfbd5b8d978c4b5d818f3754568f44a10e |
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font_01_sfnt_off0000ef7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF7C | 11988 bytes |
SHA-256: 6761663155a14ddff2a646b44d71b5a42cbb637c44c007867992378b65bcd522 |
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