MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to what appears to be a link farm designed for SEO manipulation. One prominent link, disguised as a download for 'Wingchun three forms', redirects to 'https://xajibur.ru/strik?utm_term=wing+chun+three+forms', which is likely a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://xajibur.ru/strik?utm_term=wing+chun+three+forms PDF link annotation
- https://cdn.sqhk.co/godajaxox/GDAyhi9/giwamile.pdfIn PDF document text
- https://cdn.sqhk.co/gabebutiz/iI9hfLY/sezuludal.pdfIn PDF document text
- https://cdn.sqhk.co/fofateze/kjdPGif/twinkle_twinkle_little_star_famous_nursery_rhyme_lyrics.pdfIn PDF document text
- https://cdn.sqhk.co/jobezivozuf/ahdYheY/83928579385.pdfIn PDF document text
- https://cdn.sqhk.co/kataregulu/lKJIJym/75174924556.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
- https://s3.amazonaws.com/xasovewipeje/lojikefojogixa.pdfIn PDF document text
- https://68e1e3d4-268d-49bc-a8aa-b119cb10fea7.filesusr.com/ugd/3ceeb9_3031d3f0235145ccaf6d3d036edb2699.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7b93a01d-a839-4747-a1c4-273218368d2a/38473524704.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8d9e0fb-4214-46ee-99f3-b3c831b004e4/fidalewowuwenerazeboto.pdfIn PDF document text
- https://s3.amazonaws.com/tolivajupeku/74317152030.pdfIn PDF document text
- http://jojoleru.epizy.com/77892527075.pdfIn PDF document text
- https://s3.amazonaws.com/turip/1783524695.pdfIn PDF document text
- https://s3.amazonaws.com/setaxilitozuko/16508173884.pdfIn PDF document text
- https://be8f41f0-9ddd-434d-ab6d-aa755a40b80d.filesusr.com/ugd/726d9c_05252cffe1764410ba2842e475198801.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/patotale/xedimufiv.pdfIn PDF document text
- http://vulawogini.rf.gd/integrating_hx_stomp_into_pedalboard.pdfIn PDF document text
- https://s3.amazonaws.com/davawina/tinejilepifaku.pdfIn PDF document text
- https://s3.amazonaws.com/wavunot/67343634607.pdfIn PDF document text
- https://s3.amazonaws.com/tibitexil/beautiful_allah_images_free.pdfIn PDF document text
- https://s3.amazonaws.com/fibesezati/31779041828.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8ccff577-b638-42c9-8c5a-9ca1da9c541d/how_bad_can_it_be_lorax_lyrics.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b460a05-012a-482b-a406-c746848e8c4a/jopuwirenifupofonemu.pdfIn PDF document text
- https://s3.amazonaws.com/moduluzuxikari/is_life_of_pi_book_based_on_a_true_story.pdfIn PDF document text
- http://zojiwedut.rf.gd/xipesizavorizuvukil.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_off00010fd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD7 | 4948 bytes |
SHA-256: db13e8c1f2835d716de0721a6f47913f1dbd0465f84e752ed45f6b5ea43031bc |
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font_01_sfnt_off0001208c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1208C | 10424 bytes |
SHA-256: 3de8a3240ce6c179ffe26b96a52a244dc1bb80aa4f43fe3ccb3fb0fbe47fe06e |
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font_02_sfnt_off00014444.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14444 | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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