MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI and a heuristic firing for an SEO redirector, indicating a phishing or malware distribution attempt. The primary IOC is the malicious URL used for redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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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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://kuzutuzo.ru/strik?utm_term=basic+english+grammar+exercises+for+beginners PDF link annotation
- https://cdn-cms.f-static.net/uploads/4377933/normal_604297234a9d2.pdfIn PDF document text
- https://s3.amazonaws.com/luramamelolem/hush_little_baby_lyrics_modern.pdfIn PDF document text
- https://s3.amazonaws.com/lemerisinivum/ekornes_stressless_review.pdfIn PDF document text
- https://cdn.sqhk.co/virurewev/SeVheia/bunk_bed_with_slide_buy.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495691/normal_600fd5c17ff51.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4482863/normal_5ff412a8dc1d7.pdfIn PDF document text
- https://cdn.sqhk.co/gosukutusu/whMERjb/zabanuwotarokifonixurozi.pdfIn PDF document text
- https://cdn.sqhk.co/jupujezaxa/KTjfihS/ghana_education_service_syllabus_for_jhs.pdfIn PDF document text
- https://s3.amazonaws.com/tumuzu/85887041439.pdfIn PDF document text
- https://s3.amazonaws.com/gomaxod/821459618.pdfIn PDF document text
- https://cdn.sqhk.co/rojarimeg/Zid7iih/degowukapimimikisododimu.pdfIn PDF document text
- https://cdn.sqhk.co/veladaxuzeba/YLlGhbT/bosimolovoduzuwupo.pdfIn PDF document text
- https://s3.amazonaws.com/jitimesolagun/85268628645.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/50b05a8b-7705-454c-a4f4-682d6da30c5f/lenovo_g50-80_dolby_driver_windows_10.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0e723ef9-190d-4610-9dbc-692b1a03f657/zixumuxudez.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5be05f9c-e375-482e-a06c-c2f5e68cbffc/what_movie_plays_its_the_end_of_the_world_as_we_know_it.pdfIn PDF document text
- https://9c3086b9-336b-4a4d-b39c-975a2563a2e0.filesusr.com/ugd/f4f792_e05ca61c23f44ce5bcd94389de98f35b.pdf?index=trueIn PDF document text
- https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_96f79048692f46769cd51eb49494ad35.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c9fc4ddd-e3d5-43ce-845f-881c2f230289/mtd_chipper_shredder_5hp_manual.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d781.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD781 | 5552 bytes |
SHA-256: c9505e12e9005038f657ac6e239ffc434efdee6813fd4676cd0b40901d2dfbac |
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font_01_sfnt_off0000ea3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA3A | 1832 bytes |
SHA-256: 2efce7ab7e40088d636505c3bfb509387c7acf8cfb7972371bfedf85748c46cc |
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font_02_sfnt_off0000f319.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF319 | 11092 bytes |
SHA-256: b2a5b8642f18c59edb980ed9572a08939d5817c61ff8ff1b7901796cab82e8e9 |
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font_03_sfnt_off00011918.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11918 | 16508 bytes |
SHA-256: c27f923d842fcf75914bcb38f910c7ee9e5e847eea41e4b8197fd3b1a7c12a35 |
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