MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of external links, many of which are SEO-optimized and redirect through a URL like https://zajinet.ru/strik. The presence of a link farm and redirector suggests a phishing or malicious content delivery attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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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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://zajinet.ru/strik?utm_term=pe+exam+preparation+course+california PDF link annotation
- https://cdn.sqhk.co/vijasezadida/hfLjfPw/free_background_music_for_videos_soundcloud.pdfIn PDF document text
- https://s3.amazonaws.com/dujepav/45331732509.pdfIn PDF document text
- https://cdn.sqhk.co/xobakidanav/ieihY4X/naxobefepu.pdfIn PDF document text
- https://cdn.sqhk.co/gitaligido/chaiJig/17860667768.pdfIn PDF document text
- https://s3.amazonaws.com/zosevid/romeo_and_juliet_movie_free_download_mp4.pdfIn PDF document text
- https://s3.amazonaws.com/busutafitufe/13245442442.pdfIn PDF document text
- https://cdn.sqhk.co/motuvitewodi/cmhcibr/9288611473.pdfIn PDF document text
- https://s3.amazonaws.com/gewisetug/51465563315.pdfIn PDF document text
- https://cdn.sqhk.co/kutajanode/hdp9Zca/blackpink_piano_game_apk.pdfIn PDF document text
- https://cdn.sqhk.co/pesunexaxak/aAjikhg/undisclosed_piece_of_information_crossword_clue.pdfIn PDF document text
- https://cdn.sqhk.co/bilanogakiw/AGyjbJ6/84310032270.pdfIn PDF document text
- https://s3.amazonaws.com/siwixomudit/jotobakitizetilemedoj.pdfIn PDF document text
- https://cdn.sqhk.co/nawiwola/lhe1Khh/popular_black_boy_hairstyles.pdfIn PDF document text
- https://cdn.sqhk.co/zopizote/uMDjhjc/suvukumibefok.pdfIn PDF document text
- https://cdn.sqhk.co/zotofoza/qzhbYxq/cnc_machine_metal_cutting_price.pdfIn PDF document text
- https://cdn.sqhk.co/bilanogakiw/dRswI2Z/lunchable_nintendo_switch_scanner.pdfIn PDF document text
- https://s3.amazonaws.com/sowirutelevolur/blogspot_apps_free.pdfIn PDF document text
- https://s3.amazonaws.com/najubu/matlab_plot_line_style_dashed.pdfIn PDF document text
- https://s3.amazonaws.com/lovomijelun/bachelor_of_science_in_information_technology_management.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://a82c121c-2200-4cd7-aff6-47cf910fdadb.filesusr.com/ugd/117c17_6397c75dbccc42b8af0f0efa3ba33183.pdf?index=trueIn PDF document text
- https://21d44941-995c-48b9-956b-8145330e20d5.filesusr.com/ugd/577b75_c0aa3db6a518435ebae6fdbd1eaf44c2.pdf?index=trueIn PDF document text
- https://7fd92c66-d3af-485c-b7a9-31529ddfb1b5.filesusr.com/ugd/997d0f_d2854b0e03bb40ae824134486b3e8808.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_off0000fdc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC4 | 5228 bytes |
SHA-256: de88d186c90e01a5426efbbdb1d9707d87c8a61765e1b9f9468743db29f92436 |
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font_01_sfnt_off00010f79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F79 | 11752 bytes |
SHA-256: cc16f087e8cc3335f9da2bd5029d6dc17d2e8def682dfe2dad79d63d46433cc6 |
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