MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is identified as malicious by ML classifiers and ClamAV, flagging it as a phishing trojan. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The document body, though partially corrupted, indicates a lure related to a 'research proposal summary'. The presence of embedded URLs and the overall structure strongly suggest an attempt to redirect users to malicious or spam content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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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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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://botokaw.ru/strik?utm_term=example+of+research+proposal+summary
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- http://xilevidesidol.22web.org/antibiotic_sensitivity_test_method.pdf
- https://pibogexo.weebly.com/uploads/1/3/4/6/134649935/jojopamefibuvo.pdf
- https://mepopukivar.weebly.com/uploads/1/3/6/0/136083549/0c7c67.pdf
- https://cdn-cms.f-static.net/uploads/4485301/normal_605bfd776b50e.pdf
- https://zegepefuloruwan.weebly.com/uploads/1/3/4/0/134012378/2282101.pdf
- https://cdn-cms.f-static.net/uploads/4494146/normal_606a1c2fb0d9b.pdf
- https://static.s123-cdn-static.com/uploads/4444644/normal_600902969f26a.pdf
- http://akb54.ru/romejufixobikutehfx9c.pdf
- https://pasutexovemas.weebly.com/uploads/1/3/0/9/130969198/tifizaro-zodozaj-rigaver-tajowaj.pdf
- https://static.s123-cdn-static.com/uploads/4386834/normal_5fecc9efb22bc.pdf
- http://rodina38.ru/facebook_login_name_delete6g744.pdf
- http://xapozibun.22web.org/misepexolotomawomowe.pdf
- http://rezotu.xyz/bell_schedule_central_valley_high_schoolxx7uv.pdf
- http://megantv.site/most_cool_last_namesvbufo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://bf5f3f24-cfb9-4aec-9f01-83e6d863dc5b.filesusr.com/ugd/1f4526_1384c5bb1bc746e1bd99a91d0fcfd46b.pdf?index=true
- https://b66a6cc6-7028-4fd7-9d19-084b2b27c535.filesusr.com/ugd/4015cf_bf28fd983d654933b9531d1e374dc151.pdf?index=true
- https://s3.amazonaws.com/zedudo/mabekupavokorumifubeg.pdf
- https://5057b38b-f250-4925-a5fd-2dbc054a2c1f.filesusr.com/ugd/25ee37_5bdaf44683a44f29994f52c8d37f92ba.pdf?index=true
- https://f2fffe36-c7b4-4b88-9608-518dc6c14750.filesusr.com/ugd/950b2a_ae732f64fb0a48a9892eb3a3ec6acde2.pdf?index=true
- https://s3.amazonaws.com/nimuwet/63949201757.pdf
- https://s3.amazonaws.com/ziwuvijevo/disney_alto_sax_sheet_music.pdf
- https://be1d055c-b83b-422e-9e68-1bf13cef350c.filesusr.com/ugd/5b1e3c_65223a56e4a8444a987a22d6efc6e840.pdf?index=true
- http://nedudab.epizy.com/bpm_en_alimentos.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_off0000fd58.bin496d730f8c394db530cdb5d28dd4612d1fd8835bdbd7cae78d71059ae55e1f9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD58 | 5380 bytes |
font_01_sfnt_off00010f8a.bincc72ec2d4defc3c0b63cbffaaa2acf840c9ddf4cfb995c6921281beff9f836bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F8A | 10724 bytes |
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