MALICIOUS
214
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 designed to obscure malicious destinations. The presence of a 'download button' lure and a callback phishing lure further indicates malicious intent. ClamAV detection and ML classification confirm the malicious nature of the file, likely serving as a downloader or redirector to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 8
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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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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 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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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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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://mezovuduw.ru/123?utm_term=cessna+210+pilot+operating+handbook+pdf
- https://webenewosa.weebly.com/uploads/1/3/1/4/131409170/744741.pdf
- https://rorukelezoreke.weebly.com/uploads/1/3/4/4/134460248/metugebekedexad.pdf
- https://cdn-cms.f-static.net/uploads/4478926/normal_5fd2cb52901e3.pdf
- https://tijanowu.weebly.com/uploads/1/3/0/7/130739502/258b44fc.pdf
- http://pasikufopubiwo.mypressonline.com/20201926181.pdf
- http://fafijitesulexiz.mygamesonline.org/71710319268.pdf
- http://pusatokolerax.mywebcommunity.org/lowaxiziwozofuxaju.pdf
- https://rebanurox.weebly.com/uploads/1/3/4/4/134490941/zagebu.pdf
- https://cdn-cms.f-static.net/uploads/4422367/normal_5fea4477cabb6.pdf
- https://bakubirusi.weebly.com/uploads/1/3/4/6/134680497/1da611ec8.pdf
- http://kojazunupetip.mygamesonline.org/the_bible_old_testament.pdf
- https://jimixinig.weebly.com/uploads/1/3/1/1/131164312/3090b3e617d.pdf
- https://govoxarenaja.weebly.com/uploads/1/3/4/8/134874143/likizasuzobeto.pdf
- https://vuvonuzomuvi.weebly.com/uploads/1/3/4/5/134508102/ladapola_xonawevuduz.pdf
- http://luloxijemise.medianewsonline.com/56485630728.pdf
- https://fiwarurebel.weebly.com/uploads/1/3/2/8/132814972/4883309784dd5.pdf
- http://tujukesabegakom.mygamesonline.org/casio_fx_5800p_surveying_programs.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://665985ba-8e9f-4173-b993-17a3090d61d7.filesusr.com/ugd/08421c_b9147dfcb9334df781074a0ddcdddbc1.pdf?index=true
- https://63c5840e-267c-49ed-94d3-fc9f9d8b9c0b.filesusr.com/ugd/8c5bc8_4e8401f90ef04cd7827637c3ece6ab1f.pdf?index=true
- https://e82ff0bd-cb1a-4782-8b92-0a0fb7657660.filesusr.com/ugd/d17951_2b4e4c7ba8014adeb4195bcf984ef3e9.pdf?index=true
- https://e46eb8ae-11b5-47af-91b5-79e2db369635.filesusr.com/ugd/f84671_ef67c269b5ea47b09d284486bf719038.pdf?index=true
- http://wejajesenopezoj.onlinewebshop.net/how_to_turn_on_oster_coffee_maker.pdf
- https://d4078116-a2d5-466f-97e6-20d899f6ca30.filesusr.com/ugd/576447_1bbd905e7b7e49bda5c2cbf82fdf8cba.pdf?index=true
- http://gixufedexakav.atwebpages.com/3_bedroom_bungalow_house_plans_in_kenya.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012a64.bin604886e2c6c17137364930f6be9f515b782b14d84abde03cc36cd677a20fd0ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A64 | 5736 bytes |
font_01_sfnt_off00013de0.bin7d6e710a26d50734f80ea3c31eb5b5a38d428a509baa0d7467371d17602691e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DE0 | 10684 bytes |
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