MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a mass external link farm and an SEO redirector, indicating a phishing or malware distribution attempt. The primary redirector URL is 'https://baarspo.ru/strik?utm_term=doctor+zhivago+novel+review', which likely leads to a malicious payload or phishing page. ClamAV and ML classifiers also flagged this PDF as malicious, supporting the phishing and trojan classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://baarspo.ru/strik?utm_term=doctor+zhivago+novel+review PDF link annotation
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- http://lynciguest.com/beyblade_v_force_episode_guiden47xi.pdfIn PDF document text
- http://xemizawufogutuf.scienceontheweb.net/lonumipawakutum.pdfIn PDF document text
- http://gelchlen.fun/mopopokedutimetupibnxef.pdfIn PDF document text
- http://likelid.xyz/453893385977msa4.pdfIn PDF document text
- http://vittorguxx.site/lulemamasebejogajulebeg9x01i.pdfIn PDF document text
- http://tagaporigowekis.mygamesonline.org/94897846156.pdfIn PDF document text
- http://riragukigud.scienceontheweb.net/carnival_sunrise_deck_plan.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://2c9641c8-5874-4869-9b94-f1378e60aa6b.filesusr.com/ugd/efc1f6_b64c496886ba4b8384c3ad9e60f0d5aa.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rozebofukixus/proyecto_de_investigacion_pasos_y_ejemplos.pdfIn PDF document text
- https://3e1ae61b-6b68-46dc-8a90-d1c7a5b9f91c.filesusr.com/ugd/b8bbd7_b4076aa2ed1c4d099fa38a5d37d740fb.pdf?index=trueIn PDF document text
- https://8eeb1f0a-0cdd-4c66-98a4-83777b49fb54.filesusr.com/ugd/64f9d2_5ed613a048d44f7485e9e827cd0b8f4d.pdf?index=trueIn PDF document text
- http://tiluxusimutine.atwebpages.com/corneal_refractive_surgery.pdfIn PDF document text
- https://s3.amazonaws.com/tigewibejageju/totaboduzitasuxesono.pdfIn PDF document text
- https://s3.amazonaws.com/jebokizez/personal_goals_template_word.pdfIn PDF document text
- https://08b4a39d-fa16-4eaa-91be-ae90003cacb9.filesusr.com/ugd/237bf7_ef3fd66d0236403ca7bdd05e3cdbc7d9.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xapota/how_to_get_better_audio_on_pc.pdfIn PDF document text
- https://s3.amazonaws.com/nedijowewoded/granny_smith_apk_revdl.pdfIn PDF document text
- https://s3.amazonaws.com/duzexefemosaxe/wordpress_themes_for_business_services.pdfIn PDF document text
- https://76c9fb28-c10e-4950-85be-37de24a2ede8.filesusr.com/ugd/fa32a6_45910016900743368f5f1aa216f11778.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vuxagixil/52841924462.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000172b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x172B3 | 5048 bytes |
SHA-256: ff03856b15907aaa892103cdba101df05a4aa15a4a3acacb8089e3ab2d183c1d |
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font_01_sfnt_off0001841f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1841F | 4872 bytes |
SHA-256: 83db6f0b85b1b3679887d353cc9edd9344f1a9394493a1b9bdf8036ce79fd01a |
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font_02_sfnt_off000194bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x194BD | 16628 bytes |
SHA-256: 037d444fa0a1dfbb887a311dcca2a27fc1e24b13fd2ea8be6ebafbcd4c3d5448 |
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font_03_sfnt_off0001c776.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C776 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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