MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external links, many pointing to other PDF files hosted on disposable or user-generated content platforms. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly support the malicious verdict.
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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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://seumenha.ru/award?keyword=another+day+of+sun+piano+easy+pdf PDF link annotation
- http://dupuladusudired.mypressonline.com/61310159994.pdfIn PDF document text
- https://cdn.sqhk.co/vesagivara/iaijic1/47964457256.pdfIn PDF document text
- http://sugameloxufe.mywebcommunity.org/what_is_the_dominant_theme_of_the_yellow_wallpaper.pdfIn PDF document text
- https://cdn.sqhk.co/vuveleni/gcicBia/8_ball_pool_hack_2020_dinheiro_infinito_ios.pdfIn PDF document text
- https://cdn.sqhk.co/tisezalave/hfgfNii/gabun.pdfIn PDF document text
- http://vufiwopader.medianewsonline.com/bsc_chemistry_notes.pdfIn PDF document text
- https://cdn.sqhk.co/forinabam/aVS4hib/tower_run_app.pdfIn PDF document text
- https://cdn.sqhk.co/xusarukave/tShgHhc/baxor.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://95c758d6-fd33-43c6-b5d0-f1f55e07e946.filesusr.com/ugd/cb0188_c96a22d6a4eb4794a43026a9a2180c71.pdf?index=trueIn PDF document text
- http://jixeninazaxudaj.rf.gd/fexokenikomoredubigu.pdfIn PDF document text
- https://8ab1a2d5-e5b1-44c5-a28c-e09959565f0d.filesusr.com/ugd/eb712c_f58086765ce34086949cdb10c7bc3ea9.pdf?index=trueIn PDF document text
- http://pukafenofi.epizy.com/rumovapafuxufirizawomogi.pdfIn PDF document text
- https://8137cd1e-393d-4948-8193-eca935452849.filesusr.com/ugd/756799_2b3c8a6ce4674d179993ebf78c243675.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/donake/wuxitenad.pdfIn PDF document text
- http://vaxokepa.rf.gd/grocery_store_flyer_templates_free.pdfIn PDF document text
- https://49f3a523-2ddb-4f17-a073-729d67a362fa.filesusr.com/ugd/18c683_ef1b93494ff244aaac646aab760da50c.pdf?index=trueIn PDF document text
- https://acd80754-3b70-42c6-a60f-3489f6261da4.filesusr.com/ugd/f1780b_8bdc719ad7a74254b707a93aa52ba41c.pdf?index=trueIn PDF document text
- https://bdc3fad0-85dd-4e34-85f7-620d54d4ff6f.filesusr.com/ugd/10cedf_a8f3bc81ef824239a44e63e21e85e0d9.pdf?index=trueIn PDF document text
- http://kuvuwimi.rf.gd/zemovovifigijaxaz.pdfIn PDF document text
- https://6129906d-bc82-46a7-99f5-71793a58af3c.filesusr.com/ugd/d162e3_004a46b6b4784838be88070f73d045c5.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kefefetafij/renal_association_hyperkalaemia_guidelines.pdfIn PDF document text
- https://s3.amazonaws.com/tabobujimo/kevigumabugazetutuw.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e834.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE834 | 5188 bytes |
SHA-256: 7a9f9fc3ddebc111bb8ead2e64df17f207ad547065778322a0fab929c4843e2e |
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font_01_sfnt_off0000f9e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9E7 | 10304 bytes |
SHA-256: af9272936fce00927a8f49dffa9c89d6f8206e17d3e19a9f99901217d31b6f7a |
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