MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users with a fake download prompt. The primary malicious URL identified is https://yafferge.ru/strik, which is likely used to redirect users to a phishing or malware-hosting site. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/strik?utm_term=how+to+download+games+onto+ti-84+plus+calculator In PDF document text
- http://sabaroxuxonefib.iblogger.org/compare_scarlett_2i2_and_2i4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454047/normal_6021d1fca7bd2.pdfIn PDF document text
- https://s3.amazonaws.com/mexijegedakol/namalojusiz.pdfIn PDF document text
- http://mitutepoka.medianewsonline.com/2005_honda_civic_transmission_replacement_cost.pdfIn PDF document text
- https://s3.amazonaws.com/xupimaral/97998122250.pdfIn PDF document text
- https://s3.amazonaws.com/rerinago/brutal_age_mod_apk_new_version.pdfIn PDF document text
- https://s3.amazonaws.com/zuvovoxigumuz/how_to_replace_flat_top_stove_element.pdfIn PDF document text
- https://s3.amazonaws.com/petikamov/badlapur_movie_hdmoviespoint.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450509/normal_6058dbfee88c9.pdfIn PDF document text
- https://s3.amazonaws.com/vavale/good_informational_writing_topics_for_6th_graders.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411944/normal_5fed79ba7a9cc.pdfIn PDF document text
- http://xobokalute.iblogger.org/cadena_de_suministro_unam.pdfIn PDF document text
- https://s3.amazonaws.com/zedudo/93775246805.pdfIn PDF document text
- https://s3.amazonaws.com/wazorixekunafob/line_graph_worksheets_1st_grade.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4456166/normal_6007374f3fdf5.pdfIn PDF document text
- http://winovigamaj.mygamesonline.org/beatspot_book.pdfIn PDF document text
- http://zumepaposakuf.scienceontheweb.net/staff_accountant_interview_questions_and_answers.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501774/normal_6007d69c632d4.pdfIn PDF document text
- https://s3.amazonaws.com/limewub/how_far_is_it_around_lake_calhoun_and_lake_harriet.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/163d4cc0-b3c8-4eba-a636-83f6351d01c9/what_is_the_difference_between_dog_and_cat_fleas_the_same.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/18fea239-be27-421d-ae07-c3608d0a48e5/94640236163.pdfIn PDF document text
- http://titasukutisun.epizy.com/pak_studies_class_9_book_english_medium_2020.pdfIn PDF document text
- http://vejawotivifima.rf.gd/butterfly_valve_assembly_catia.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9898841a-cf0a-4b8b-a338-afd99ec8dc1a/kisaxuzupuraxu.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f165.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF165 | 3016 bytes |
SHA-256: cbb52481ce94e16f1aa7c1e5556943e0858c32639ae52c58d7d3596933ba349e |
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font_01_sfnt_off0000fc21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC21 | 5760 bytes |
SHA-256: 183f5f462b86d9f25c4689b786b23c90f08ac26dfa323edc669b73367fd09e9c |
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font_02_sfnt_off00010fca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FCA | 11220 bytes |
SHA-256: 6c906c941618a7bbfcb6b453c32efc8d6898e90e1616e9d0b69bd64768f51ffe |
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