MALICIOUS
76
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains heuristics indicating it is a lure for free downloads, specifically referencing an 'isosceles trapezoid worksheet with answers'. It embeds external URIs pointing to a suspicious domain, zajinet.ru, which is likely used to redirect users to malicious content. While no scripts were explicitly extracted, the ML classifier flagged the PDF as malicious, suggesting underlying malicious functionality, possibly involving embedded JavaScript for redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9783
Heuristics 4
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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://zajinet.ru/wix?keyword=isosceles+trapezoid+worksheet+with+answers+pdf PDF link annotation
- http://gachihyper.xyz/42951668505v8wep.pdfIn PDF document text
- http://goloszauniver.fun/befazadadoneriwidul820f2.pdfIn PDF document text
- http://idealica-itufficiale.website/wonoselogazezirxk6z.pdfIn PDF document text
- http://drive4mclaneeffingham.com/samsung_xpress_m2825dw_laser_printerfcbw7.pdfIn PDF document text
- http://dezlice.ru/vexonobiy90hy.pdfIn PDF document text
- http://gamedv.design/las_brujas_de_eastwick_librofq426.pdfIn PDF document text
- http://steelsho1.club/xanarewuwj49k.pdfIn PDF document text
- http://ganoget.scienceontheweb.net/oxford_arabic_dictionary.pdfIn PDF document text
- http://update-win20.online/poulan_pro_42cc_chainsaw_pp4218a1bwia.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/vigevot/cercle_trigonomtrique_exercices.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cf7ca885-6602-4153-8c44-729934a389bc/91563743583.pdfIn PDF document text
- https://s3.amazonaws.com/foneniz/how_much_does_it_cost_for_a_water_softener_system.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/78d4b5a4-2a41-45e1-93ce-0376a502a6f3/58878753439.pdfIn PDF document text
- https://s3.amazonaws.com/wobuzisibal/marketing_plan_samples_templates.pdfIn PDF document text
- http://lugimeviguv.myartsonline.com/define_altruism.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d9273401-329c-4705-a0d3-b449268e3cfa/34542386095.pdfIn PDF document text
- https://s3.amazonaws.com/wetevali/android_checkedtextview_group.pdfIn PDF document text
- https://s3.amazonaws.com/megodipewukitoj/89361493327.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dd6f7e89-9eb9-4b90-ae83-be4c99cfeacd/sajakupiwixurabunejivuse.pdfIn PDF document text
- http://tiluxusimutine.atwebpages.com/notawutifudelonimuvoweto.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ae8b4fe-1f03-4653-a811-fed6e278d5be/rinnai_infinity_flue_installation_manual.pdfIn PDF document text
- https://s3.amazonaws.com/toniseligiwuzux/solunuxodufimek.pdfIn PDF document text
- https://s3.amazonaws.com/wemazun/how_to_speak_english_fluently_online_free.pdfIn PDF document text
- https://s3.amazonaws.com/somisilegex/washington_state_prevailing_wage_fringe_benefits.pdfIn PDF document text
- https://s3.amazonaws.com/vudivuzakal/12002882629.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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 8
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011d15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D15 | 7000 bytes |
SHA-256: 00407df8637e4faa75cea87a577b13354dcbd5b946b7316313e385fe4bd8b845 |
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font_01_sfnt_off00012e78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E78 | 3644 bytes |
SHA-256: 84eea78439f6d6d60953746aef65c36306aa040a85f933106affe6c7d146e642 |
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font_02_sfnt_off00013b63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B63 | 5176 bytes |
SHA-256: 5174d1d220322c69f1403c5340dde1534f78c4a689b91fcc50deb1ef7001966c |
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font_03_sfnt_off00014cf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14CF5 | 1860 bytes |
SHA-256: 461d427279ce0cc0e6d1810d7e7ad07c8af9c68edaff1d731b4fe13deee2e1eb |
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font_04_sfnt_off00015611.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15611 | 15672 bytes |
SHA-256: c3067b92f182cf48da242d003baf851bbd2396504c6a5ce6c3353b667094d132 |
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font_05_sfnt_off00018963.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18963 | 16676 bytes |
SHA-256: 063a999b6b7984710624296845c63ed875fd5d4cbdb3f22a283e372bca2d0608 |
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font_06_sfnt_off0001a0a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A0A3 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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font_07_sfnt_off0001ae65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AE65 | 6264 bytes |
SHA-256: 3a37165f5dfe862bf297a626dafe0cdfa6e58313a94b010fecc3b671a72c2c31 |
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