MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'hard reset nextbook tablet pc', suggesting a lure. The PDF also hosts a large number of external links, many on disposable hosting, indicating a link farm designed to direct users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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 contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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/strik?utm_term=hard+reset+nextbook+tablet+pc In PDF document text
- https://cdn.sqhk.co/zamupefa/cajcIja/63350331119.pdfIn PDF document text
- https://cdn.sqhk.co/xumirikebixo/uih4ibu/sogidojuxiberagurak.pdfIn PDF document text
- https://cdn.sqhk.co/xasexuwosul/6hhWpAz/alibaba_1688_platform.pdfIn PDF document text
- http://constructionhouse.info/chemistry_of_natural_products_carbohydratesmx3b8.pdfIn PDF document text
- https://cdn.sqhk.co/totimujid/jbGOQil/red_sun_rising_uninvited_video.pdfIn PDF document text
- http://shtangennstutkupitseychas.xyz/fezimewukitipivemelv6.pdfIn PDF document text
- https://cdn.sqhk.co/xuxofabope/ciiidRT/paper_toss_app_download.pdfIn PDF document text
- https://cdn.sqhk.co/sifalavuxozo/g9jfGMr/ramp_car_stunt_racing_game_download.pdfIn PDF document text
- http://fb-pageunderreview.com/9663112916eihrx.pdfIn PDF document text
- https://cdn.sqhk.co/kumotuxijufu/Pyjgjcn/how_to_get_xbox_beta_app_on_iphone.pdfIn PDF document text
- http://yourlivehelp.com/77791793072mwlsa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://de74b992-0de1-402f-a2cc-438209b178b2.filesusr.com/ugd/2693ef_0d9c0b36604d49c3bc70bea8dddaaaf1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/95c94e2b-b061-4fc7-90f9-9c049843f5c6/60886331653.pdfIn PDF document text
- https://54570836-76ea-4100-b78f-d1ba4c3cc0d1.filesusr.com/ugd/21ac59_3e881c9e3f4d4077a844b840bca208a3.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6d45d6fc-f210-4139-b28f-0c8ab4543dd0/jepaforudemuzazaxipum.pdfIn PDF document text
- https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_d91cbb1fb84d4f1b8a4e4498b099554e.pdf?index=trueIn PDF document text
- https://f18b8dc1-3ce9-44bd-8712-01435d039869.filesusr.com/ugd/b97cba_68195390a56245a1beae5c2e07a3cbaa.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/351de95a-6f5f-4744-aae5-077871b689e3/41035728870.pdfIn PDF document text
- https://0fe83ef2-ed6b-4f04-a52d-31fe3c58d8d1.filesusr.com/ugd/ade4e6_be4e4fe47e1948e990970eca153ff4b1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f323fdf5-1a7e-4079-8b6d-33f59f47e3f2/how_to_reset_my_lg_tv_remote.pdfIn PDF document text
- https://03aaa7dd-6608-466c-a68c-f41c59811c05.filesusr.com/ugd/ae15ca_176e65f6d1aa400683ca99fed552eb41.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4aa70e2d-dad4-4db7-bd6b-44508ae2291a/listening_comprehension_goals_speech_therapy.pdfIn PDF document text
- https://493f174a-a540-412c-bacb-e5b7b26cbfcf.filesusr.com/ugd/95bb70_85b8bb44a9ea424dbced0951ec9305cb.pdf?index=trueIn 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_off0000d1a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A3 | 5300 bytes |
SHA-256: c9e8caba5ec105e5211f3a8708d1abd71d73d03dcb3d775da94015db77c63cbb |
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font_01_sfnt_off0000e3ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3AE | 11052 bytes |
SHA-256: 41ce1ed178f0e37662f8ba2b99a619c976a68d1749b7d65538c9b5cbe7d84eee |
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