MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document exhibits characteristics of a malicious lure, including a high ML classifier score and the presence of numerous external URIs pointing to disposable hosting. The document's structure and embedded links suggest an attempt to trick users into downloading further malicious content, likely disguised as educational material or software. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicates a malicious intent to distribute content through a network of low-reputation domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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://kuzutuzo.ru/strik?utm_term=past+simple+vs+past+continuous+exercises+english+4u PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366388/normal_6058c6f985863.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444386/normal_603fe23a2fa11.pdfIn PDF document text
- http://prostosite.site/nostradamus_book5zbhb.pdfIn PDF document text
- http://ekzo-fruit.ru/74313360517l8614.pdfIn PDF document text
- http://buyfastedcircle.xyz/93309016657rhtfk.pdfIn PDF document text
- http://olymp-trade.top/how_to_start_excell_pressure_washervlzz7.pdfIn PDF document text
- http://xteenware.online/english_to_bengali_offline_dictionary_download_for_pcby5dn.pdfIn PDF document text
- http://wwbook.org/funny_in_farsi_chapter_26_summarye4rxs.pdfIn PDF document text
- https://duxoberadu.weebly.com/uploads/1/3/4/7/134718286/c2384c37c6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376088/normal_6044747f36ef0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383460/normal_5fe18111de9aa.pdfIn PDF document text
- http://fishland.store/57001675371c4s1z.pdfIn PDF document text
- https://sezebotari.weebly.com/uploads/1/3/1/6/131636698/ketoga_wevoweluxozosug_xedideduja.pdfIn PDF document text
- http://siteznakomstv69.space/191262731096c4fg.pdfIn PDF document text
- http://businessmentality.com/vegetarian_cookbook_free_downloadopxsu.pdfIn PDF document text
- http://antonioita.fun/sejopoxupo5vce0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://50fe66f1-00be-429c-ab6c-57a9f80d6ab9.filesusr.com/ugd/39cb9d_f8d0eca97f0a49e7a165666e63532016.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/ravuxudibure/10055840906.pdfIn PDF document text
- https://s3.amazonaws.com/sajezife/occupational_hazard_and_safety.pdfIn PDF document text
- https://a9b7993f-6967-48c1-a2c3-d5bc86fe985f.filesusr.com/ugd/ea2be3_3cce7bf866704353ba3798866855a07f.pdf?index=trueIn PDF document text
- https://cb0920a4-0dfc-4587-8161-bd3bf883b043.filesusr.com/ugd/df391a_eb067751f6e54a31a16775b90d5f7b3e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jopomodilamego/blue_card_application_form_for_student.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_off0000eaa0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAA0 | 5564 bytes |
SHA-256: 20d5dc190aeda2cd2d6c9bf65675bf5b28950f91afd120cc2da35ace182a42c0 |
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font_01_sfnt_off0000fd74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD74 | 10912 bytes |
SHA-256: bcba7795f5dc84b419553d09230b39d6b9277fa348931005d0e88c0f15738948 |
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