MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO poisoning tactic. The primary external URL points to a page related to 'b. f. skinner behaviorism pdf', indicating a lure to attract users searching for academic content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
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://pelibifir.ru/award?keyword=b.+f.+skinner+behaviorism+pdf PDF link annotation
- https://guximegokaxe.weebly.com/uploads/1/3/5/3/135304263/mikafu-fokifonut.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470038/normal_5fd7a85d7e12b.pdfIn PDF document text
- https://wunilozufepen.weebly.com/uploads/1/3/4/6/134600637/sujuberu.pdfIn PDF document text
- https://zulevoto.weebly.com/uploads/1/3/2/6/132696122/napapake_jatekadesixa_rawuzan.pdfIn PDF document text
- https://piwomokoxik.weebly.com/uploads/1/3/5/3/135335333/tipefagevesazupoki.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447630/normal_5fef3665b4f47.pdfIn PDF document text
- http://gonzo-3d.com/frosty_ice_cream_rural_valley_paif2yp.pdfIn PDF document text
- https://gipenozup.weebly.com/uploads/1/3/1/0/131070487/33573fd9bb61a3a.pdfIn PDF document text
- https://gezepisazijite.weebly.com/uploads/1/3/4/7/134769425/a46f2826a8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481397/normal_601cc489e2387.pdfIn PDF document text
- https://serijarivak.weebly.com/uploads/1/3/0/7/130776739/463882.pdfIn PDF document text
- https://legelopupusida.weebly.com/uploads/1/3/4/3/134350366/sirawexidaredogivef.pdfIn PDF document text
- http://shoppingyxplus.xyz/80336366145ji9dk.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4497372/normal_6002e8aa743eb.pdfIn PDF document text
- http://domavera.ru/fifatit6kg3b.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_67f0e527a39842ffa1d939737a863954.pdf?index=trueIn PDF document text
- https://73c25812-7308-4b32-b985-10e2a25710ca.filesusr.com/ugd/5b604d_3588dfc4cf6842568743595e099e6b54.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/faluzotixupi/sotaxikufiwuworifotowe.pdfIn PDF document text
- https://7fd92c66-d3af-485c-b7a9-31529ddfb1b5.filesusr.com/ugd/997d0f_6f43812ebb124552837669494a9782d7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zifozujiwi/autocad_2015_vba_enabler_64_bit.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00019879.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19879 | 5300 bytes |
SHA-256: 21b2affdab7743feb953d6b0d81edb6f1e28e6e303117c009f1bd390e160469d |
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font_01_sfnt_off0001aa44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AA44 | 10304 bytes |
SHA-256: 0e9fc09046b6d5db529c02633a72533e6583d38c86f40452878e35659de63067 |
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font_02_sfnt_off0001cd9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CD9C | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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