MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. The document body, though heavily obfuscated, contains text related to 'how to analyze survey data in excel', which is likely a lure to direct users to malicious or spam websites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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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://leonvi.ru/strik?utm_term=how+to+analyze+survey+data+in+excel PDF link annotation
- https://cdn.sqhk.co/gabisolovima/cjjEIjc/color_bump_hit_3d_apk_download_uptodown.pdfIn PDF document text
- https://jomaredavox.weebly.com/uploads/1/3/2/3/132302995/tuxep.pdfIn PDF document text
- https://mifepomaxa.weebly.com/uploads/1/3/4/8/134897651/9491337.pdfIn PDF document text
- https://najigojuvunijo.weebly.com/uploads/1/3/0/8/130874658/butesi-supoxukevit-pazaremevoki-xemugesun.pdfIn PDF document text
- https://cdn.sqhk.co/tovisegag/igijihG/25254326034.pdfIn PDF document text
- http://thedefenseforge.com/too_busy_not_to_pray_free0t8t4.pdfIn PDF document text
- http://nncucuucuc.space/160844152408ep98.pdfIn PDF document text
- https://cdn.sqhk.co/buwuvibija/ithj2gi/episode_choose_your_story_app.pdfIn PDF document text
- https://vafarisitoguv.weebly.com/uploads/1/3/0/8/130874489/vireluv.pdfIn PDF document text
- https://cdn.sqhk.co/tevunufoba/JhiEGif/battle_islands_ps4_release_date.pdfIn PDF document text
- https://rufibomorogad.weebly.com/uploads/1/3/4/5/134505720/dd130bea.pdfIn PDF document text
- https://galevegu.weebly.com/uploads/1/3/4/5/134507196/lifosuwod.pdfIn PDF document text
- http://grusha.space/piluwe6y0da.pdfIn PDF document text
- https://jixusalozexifan.weebly.com/uploads/1/3/1/4/131407855/wafedega.pdfIn PDF document text
- https://saxurugilura.weebly.com/uploads/1/3/2/8/132814125/sodobujegar.pdfIn PDF document text
- https://ruwatija.weebly.com/uploads/1/3/4/8/134846771/e01ad8561.pdfIn PDF document text
- https://cdn.sqhk.co/kakapoxavu/eXIcdii/tazolelusowutodidufojowam.pdfIn PDF document text
- http://samozanyat.info/xegidexigepogepopupemapuj6om0c.pdfIn PDF document text
- http://nout-sale.site/biomes_readingo1w8m.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
- 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_off0000ed57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED57 | 5148 bytes |
SHA-256: 51a92798c01d09ba51175d3a3a6e2dfa21796118fe2d6501cfcfa013450097df |
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font_01_sfnt_off0000ff04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF04 | 10900 bytes |
SHA-256: 25c4f19d1db2a90468b3f8a0f2d462ccc14d730ba9f2d7317d926f89df72cbe1 |
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font_02_sfnt_off0001241e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1241E | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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