MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://bologen.ru/wix?keyword=position+velocity+acceleration+worksheet PDF link annotation
- https://cdn.sqhk.co/dubikureta/iH6khyS/94185511096.pdfIn PDF document text
- https://cdn.sqhk.co/dudugetogi/ihjShgA/nujaxiforiserisopekari.pdfIn PDF document text
- https://cdn.sqhk.co/dadirowuj/Shgg6NI/clean_road_bike_crankset.pdfIn PDF document text
- https://cdn.sqhk.co/nanijamu/biijfpG/bike_race_game_wikipedia.pdfIn PDF document text
- http://zotaforiximom.22web.org/mozivuvojujizijovu.pdfIn PDF document text
- http://lakegefufen.scienceontheweb.net/carnatic_music_senior_book.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/2d158113-e728-46df-baa9-cce7b26560fd/mubewoxiveniti.pdfIn PDF document text
- https://9c50f6df-e9c1-453e-a208-eff1cefe231f.filesusr.com/ugd/44b3dc_e91827e01dfd481381bdefc086478ffe.pdf?index=trueIn PDF document text
- https://538d8494-0c7d-401a-b890-0485f6bc7bca.filesusr.com/ugd/29c71c_91317ecad2ce448297efa243be464f45.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2ba89880-404c-4660-aaba-139e41bab631/how_to_become_a_swat_medic.pdfIn PDF document text
- https://s3.amazonaws.com/kotenu/good_basketball_plays_for_high_school.pdfIn PDF document text
- https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_15aa20a860b2425fac046987ed34dd45.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c3192a12-bc34-4ec9-ac36-76d686eb01d5/48960494141.pdfIn PDF document text
- https://s3.amazonaws.com/telasebisu/bhangra_full_hd_video.pdfIn PDF document text
- https://05b56818-8b0b-4484-a411-4f1234233f1c.filesusr.com/ugd/e49726_6990848c55f3432689b6bd733c69228e.pdf?index=trueIn PDF document text
- http://kexasejuwodeji.epizy.com/aligarh_movement_essay.pdfIn PDF document text
- http://dapizodipe.myartsonline.com/dazawavunizusupijudadarev.pdfIn PDF document text
- https://s3.amazonaws.com/sezewu/26217335687.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_off0000f997.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF997 | 1764 bytes |
SHA-256: beb2da68688136c8996550f4020bb37ff4aa0e2d90a4a8cb103d42e99201d4aa |
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font_01_sfnt_off0001023a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1023A | 5208 bytes |
SHA-256: f974b242bbd3ab27ba04ad102a55f1d6848e723c2f27ac5cf80160bee4a3ce0b |
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font_02_sfnt_off00011403.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11403 | 11564 bytes |
SHA-256: 706829a828917df729e55ad95f377e323c5ad2742b27d01ecefe10aeaa7e5a37 |
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