MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to various external URLs, one of which is `https://dugedepap.ru/award?keyword=mathematical+formulas+pdf+free+download`. The presence of a 'download button' lure further supports the phishing or malware distribution objective. No scripts were extracted, but the overall structure and heuristic firings suggest a phishing or malware delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://dugedepap.ru/award?keyword=mathematical+formulas+pdf+free+download PDF link annotation
- https://cdn.sqhk.co/delojiwuguj/5gcZ0gn/2346549535.pdfIn PDF document text
- http://prognoz-football.club/how_to_reset_omron_hem-780rizh0.pdfIn PDF document text
- https://cdn.sqhk.co/tirinakiweda/T2CThf9/naxugukon.pdfIn PDF document text
- http://maxist.ru/dell_inspiron_15r_n5010_drivers_for_windows_10_64_bitrb10w.pdfIn PDF document text
- http://mx50off.pro/bevitibmy2dm.pdfIn PDF document text
- https://cdn.sqhk.co/jojojidatun/ifqC1P4/gun_zombie_2_uptodown.pdfIn 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/c34f02b6-375d-4a4a-80ce-c5edb2b6b4c0/kirolodetetudurisevopuve.pdfIn PDF document text
- https://36535336-4f9e-4c0a-b1ad-3385cb5d4299.filesusr.com/ugd/15ebe2_97134bac75834f7e8f5e9131bd998502.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/64074c9e-e9f4-4786-be6a-fb8a03f9824f/the_purple_book_occupational_therapy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f9128907-48c0-45ec-9669-3fc770d88e14/harriet_tubman_book_by_black_author.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e9cd6ee3-4554-43ad-bc04-23071b3cb9f8/gexikirozikofovadox.pdfIn PDF document text
- https://3c8197b3-f999-4f29-b3da-fbdfea3dbf34.filesusr.com/ugd/0047a4_d869c5c83bc4487da0ddee9edfa4920d.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wenobagupexekap/wordbrain_2_answers_literature_level_1.pdfIn PDF document text
- https://s3.amazonaws.com/pajeriramal/vapapisisewosagomulisoge.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/76c17128-775d-4781-9845-370cce0f3b84/devumefunezes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6bd87856-ce63-495e-8a47-b7c76224ab6f/excellence_riviera_cancun_honeymoon_suite.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05fa9e99-d877-4d18-b39e-9eefa4b93ed3/jewusomegupowara.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4ea9beba-f496-410b-9187-7dddc0445969/23677926018.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f2eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2EB | 5492 bytes |
SHA-256: 007c732895acc4e39cb0145edfdf2a6c6b2a2c2e0fed094ed2daa072a4aa0214 |
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font_01_sfnt_off00010590.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10590 | 10860 bytes |
SHA-256: db48dcfbff891aad8115c3f1a401c153076952c0b830c6ebdee3b48c9a551451 |
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