MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to potentially malicious content. One of the primary external links identified is https://kuzutuzo.ru/strik?utm_term=fe+chemical+review+manual+2020, which is likely part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://kuzutuzo.ru/strik?utm_term=fe+chemical+review+manual+2020 PDF link annotation
- https://cdn.sqhk.co/tedubifo/biiejdQ/thoroughly_in_spanish_language.pdfIn PDF document text
- https://cdn.sqhk.co/ralajelisoju/2MRTgjx/33047393506.pdfIn PDF document text
- https://cdn.sqhk.co/rubutemoxe/jjhcfV0/mandala_coloring_pages_free.pdfIn PDF document text
- https://s3.amazonaws.com/wupuxus/ne_me_quitte_pas_lyrics_orion_sun.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421472/normal_5fec503ac13b6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366304/normal_60543060ec74d.pdfIn PDF document text
- http://free-at.pro/nojomedpparv.pdfIn PDF document text
- http://custits.space/10257710457yssbz.pdfIn PDF document text
- http://zoomita.fun/pupiporalumumirifovotediys272.pdfIn PDF document text
- https://s3.amazonaws.com/sojenozap/cateye_quick_wireless_cycle_computer_amazon.pdfIn PDF document text
- https://cdn.sqhk.co/furugilenu/jhjuev2/46402202776.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450890/normal_5ff6c7981ba40.pdfIn PDF document text
- https://cdn.sqhk.co/kixagixupo/g93q4jb/tiles_hop_game_poki.pdfIn PDF document text
- https://cdn.sqhk.co/lamifiriluz/qTjegfZ/xupexezekelizopalole.pdfIn PDF document text
- https://cdn.sqhk.co/lanuniwa/hc81jaG/official_fall_date_2020.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413696/normal_602825a217f3d.pdfIn PDF document text
- https://cdn.sqhk.co/virapazetif/jfsjjhg/kirudagimijetod.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://ca6b24e6-01cd-4368-a310-1df05077a315.filesusr.com/ugd/11b39a_988271011b924e66ba558f72f27fae82.pdf?index=trueIn PDF document text
- https://d787a32c-196b-4e99-9c98-3ae3c28023f9.filesusr.com/ugd/05b469_56562dc27ac64cff8bbd35d461984192.pdf?index=trueIn PDF document text
- https://b9eb3541-094c-4606-b101-17c2291fd6e1.filesusr.com/ugd/a18601_0461ce0a4b5742bcb9427b5e4322b6f8.pdf?index=trueIn PDF document text
- https://4e4608fd-868e-43f5-b6ba-14e5e4b50785.filesusr.com/ugd/b1f235_b7b3b60df0cb41f489f2fe65863d13e3.pdf?index=trueIn PDF document text
- https://8acf0fc4-2da8-4686-9788-d7840b5449fc.filesusr.com/ugd/fab691_1c2cd2e19b5d444ba1a87505f95c13c5.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e090.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE090 | 4932 bytes |
SHA-256: 9dce45f2fc02a85d1a32713bb65a22f88e7a389fbf16d4185b9f0c2e92143f3e |
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font_01_sfnt_off0000f12d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF12D | 11704 bytes |
SHA-256: 46ec1ae8b3f81bc774f81e8c430887e3c21c9352b036340c1519e9a2b266aa59 |
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font_02_sfnt_off000118f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F9 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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