MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The embedded URL 'https://pelibifir.ru/award?keyword=active+teaching+methods+pdf' indicates a lure to a website that likely hosts malicious content or further phishing attempts. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
Heuristics 5
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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://pelibifir.ru/award?keyword=active+teaching+methods+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4419626/normal_603513dd32568.pdfIn PDF document text
- http://strongcreditscore.info/how_to_lock_whirlpool_accubake_oven_doorgmxza.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478932/normal_604204b607ead.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460950/normal_601edd020fb6b.pdfIn PDF document text
- http://wersita.space/133276736865gx19.pdfIn PDF document text
- http://lady-bug.club/salary_marketing_director_london3v5jk.pdfIn PDF document text
- http://latuha.com/mififegareniv0z2.pdfIn PDF document text
- http://interbankdigital.com/schwinn_sidewinder_e_bike_reviewwnj9x.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474176/normal_601f530c1a327.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369774/normal_5fe76e4c614dc.pdfIn PDF document text
- http://raifaisentapp.online/two_examples_of_cloud_computing_servicesyo86q.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458145/normal_6054f90fe166e.pdfIn PDF document text
- http://odemebayisitrafik.com/flysky_fs-i6_receiver_binding2k7ya.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489853/normal_605026fe1c0fd.pdfIn PDF document text
- http://cashthe.ru/what_is_a_summary_of_the_book_the_little_princeczeb2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453579/normal_5fd7b273926bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366339/normal_602a2ac6d6301.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368740/normal_60031b6c5c4c5.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bubisifapagefe/android-_x86_installer_is_not_available.pdfIn PDF document text
- https://s3.amazonaws.com/sorapobuk/fumomedawevitubuj.pdfIn PDF document text
- https://7e005a1c-fb68-43c1-af83-b854b6a2d282.filesusr.com/ugd/dcfb95_6214190ec50948769fb2489f237d5bd1.pdf?index=trueIn PDF document text
- https://ddd59a73-be73-4575-bd7b-2e5900175f8b.filesusr.com/ugd/5dc0ef_2596457a1a6b49f393e3e44ba570fc58.pdf?index=trueIn PDF document text
- https://0778d94d-b67d-49c3-8f6f-43f52d6edec9.filesusr.com/ugd/b85eb0_3f9843fb596446cd8c9fe4154c12757b.pdf?index=trueIn PDF document text
- https://979cd01f-16ea-4d2c-b189-234964c95597.filesusr.com/ugd/d4c4cf_e3c0066156f04847aabfa9341c227d9d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lakadutof/i_don_quixote_sheet_music_free.pdfIn PDF document text
- https://9b08d158-0e0f-4203-9b31-e1272d977b1c.filesusr.com/ugd/086daf_fcbf6269adf94d3283e2b81f5fab4e87.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000135b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135B7 | 5492 bytes |
SHA-256: 9ec2f850ce80ceffa0ded61df97eef2ff19075b5640d8fa6a326446e8b871294 |
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font_01_sfnt_off00014852.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14852 | 11688 bytes |
SHA-256: c825b3d7d41a68de97e42d6b2b0fecc4b912cca5c241aff6fc1eed058066969d |
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