MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a prominent one pointing to a URL that appears to be an SEO redirector for phishing. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' strongly suggest malicious intent. The document body, though heavily obfuscated, contains text related to sheet music, likely serving as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://maypoin.ru/123?utm_term=barcarolle+offenbach+sheet+music+vocal PDF link annotation
- https://s3.amazonaws.com/kobivimelelo/gubironudedodewexadadurit.pdfIn PDF document text
- https://s3.amazonaws.com/verirejon/soundcloud_apk_for_pc.pdfIn PDF document text
- https://s3.amazonaws.com/janodojivi/what_flag_has_a_rattlesnake_on_it.pdfIn PDF document text
- https://s3.amazonaws.com/bifadiwuwileji/47036854250.pdfIn PDF document text
- https://s3.amazonaws.com/gajabedafot/all_android_phone_under_12000.pdfIn PDF document text
- http://tesupelaj.sportsontheweb.net/best_acer_laptop_for_students_philippines.pdfIn PDF document text
- https://s3.amazonaws.com/genedonapubefe/1977_cessna_172n_poh.pdfIn PDF document text
- https://s3.amazonaws.com/gupojakami/achmed_saves_america_free.pdfIn PDF document text
- http://giwapuse.22web.org/application_of_third_law_of_thermodynamics.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/c05d719a-5ee3-4098-a068-6296bc444142/can_you_buy_adobe_photoshop_without_a_subscription.pdfIn PDF document text
- http://mazogakos.rf.gd/limevesivo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dde5c7be-7ef3-49b4-9234-f40d9f0ea30b/95724692878.pdfIn PDF document text
- http://potepemezupop.epizy.com/medicinal_value_of_bitter_leaf.pdfIn PDF document text
- https://5c71d6b4-13b5-43a2-97a4-9a0eba4d0f4d.filesusr.com/ugd/0f1814_ce3825ce249740afa7aa55059d5e562d.pdf?index=trueIn PDF document text
- https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_456786e5fcd7489d93797b44d729df5b.pdf?index=trueIn PDF document text
- http://poxemibusap.epizy.com/film_basara_heroes_2.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/39e5fdf4-334c-423e-97bf-2185f59eb18a/is_a_new_harry_potter_movie_coming_out_in_2021.pdfIn PDF document text
- http://dojafeduzig.myartsonline.com/aboriginal_language_map.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e5f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5F0 | 5372 bytes |
SHA-256: b77619da1c5ebc7a06afde2d5df5f51995f7b73f256ea623f4d4c8c8039c04e5 |
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font_01_sfnt_off0000f816.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF816 | 11380 bytes |
SHA-256: 1f0b0424a395bda4f4e824b6787e64dbc68228a2ec05eee2448e1c575408122e |
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font_02_sfnt_off00011e71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E71 | 16184 bytes |
SHA-256: 4360e29b7d2504916afe74d557016965ce00ddb6e9b1d1498b998f2d7a1046f9 |
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