MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to SEO-optimized URLs designed to appear as legitimate search results. The primary URL, 'https://leonvi.ru/award?keyword=calendario+epidemiologico+2020+mexico+pdf', suggests a lure related to epidemiological calendars. The presence of ClamAV detection and ML classification strongly indicates malicious intent, likely for phishing or malware distribution.
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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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://leonvi.ru/award?keyword=calendario+epidemiologico+2020+mexico+pdf PDF link annotation
- https://cdn.sqhk.co/lepavenujal/IidwlAi/58192920898.pdfIn PDF document text
- https://kaxorude.weebly.com/uploads/1/3/4/0/134095875/mekiwuko.pdfIn PDF document text
- https://cdn.sqhk.co/jomawutid/4gc6DwO/jikitopidakufe.pdfIn PDF document text
- https://zixijatujomalul.weebly.com/uploads/1/3/5/9/135962278/depozuzodabi.pdfIn PDF document text
- https://cdn.sqhk.co/fusozuwalas/EHZsgih/funny_birthday_gift_ideas_for_girlfriend.pdfIn PDF document text
- https://melesosinipedo.weebly.com/uploads/1/3/4/4/134475371/619637.pdfIn PDF document text
- http://dukafufuxona.iblogger.org/cambridge_english_for_the_media_student_s_book_free_download.pdfIn PDF document text
- https://cdn.sqhk.co/daguvemet/R3ggfii/jevus.pdfIn PDF document text
- https://cdn.sqhk.co/tinodifozeza/xhbgeha/video_status_maker_app_mod_apk.pdfIn PDF document text
- https://lepovomika.weebly.com/uploads/1/3/4/7/134701686/7726098.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://s3.amazonaws.com/gofiguj/sample_essay_writing_for_college_admission.pdfIn PDF document text
- https://s3.amazonaws.com/zedudo/solving_logarithmic_equations_worksheet_honors_precalculus.pdfIn PDF document text
- https://s3.amazonaws.com/davolazupivowi/35976714416.pdfIn PDF document text
- http://fetapewifug.epizy.com/ti_81_graphing_calculator.pdfIn PDF document text
- http://bexudigibop.rf.gd/voxezodowuveva.pdfIn PDF document text
- https://s3.amazonaws.com/lorugipopuxe/doboradezefawo.pdfIn PDF document text
- https://s3.amazonaws.com/nilititonawafim/guidewire_policy_center_10.pdfIn PDF document text
- http://gijafusatuvaxoj.rf.gd/7610899759.pdfIn PDF document text
- https://s3.amazonaws.com/gezejoputiwinu/nafagamuwalama.pdfIn PDF document text
- https://s3.amazonaws.com/laginekux/numazudinujomubujik.pdfIn PDF document text
- https://s3.amazonaws.com/bezutu/what_version_of_uconnect_support_carplay.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_off0000e384.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE384 | 5368 bytes |
SHA-256: c1a3675af5269a65019d0a1b83894ad2c1c25e04bb36681a5ebbde89d1eae550 |
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font_01_sfnt_off0000f5b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5B2 | 11000 bytes |
SHA-256: 4f2e18e1040049fc27a0460588cba2a277b262cba7080d1ca057a0970a7844a5 |
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font_02_sfnt_off000119c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119C0 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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