MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spamming operation. One prominent URL, 'https://dugedepap.ru/award?keyword=stress+management+tips+for+college+students+pdf', is embedded within the document, indicating a potential redirection or phishing attempt. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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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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=stress+management+tips+for+college+students+pdf PDF link annotation
- https://cdn.sqhk.co/tosobulig/g4V7UsT/pilikajox.pdfIn PDF document text
- https://fosuwelu.weebly.com/uploads/1/3/2/6/132695698/zofidas_dazimeroj.pdfIn PDF document text
- http://tirojegexo.iblogger.org/dengue_guidelines_2019_pediatrics.pdfIn PDF document text
- https://cdn.sqhk.co/raxasumo/hyQSjay/86763467766.pdfIn PDF document text
- http://rujigituta.iblogger.org/chamberlain_41a5021-c_manual.pdfIn PDF document text
- https://cdn.sqhk.co/japewaturu/0barMIi/gazutozikodipajupero.pdfIn PDF document text
- https://mabamigetope.weebly.com/uploads/1/3/4/4/134493328/jagarokadojiro_dikugojob_mapab.pdfIn PDF document text
- https://danexuxubusam.weebly.com/uploads/1/3/2/6/132695747/255336.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/7e51f4ce-57ee-46b4-b0c0-330499047cf1/49706670485.pdfIn PDF document text
- http://tonezifimoraga.epizy.com/enlaces_de_hidrogeno.pdfIn PDF document text
- https://e0eedba4-cf99-4c42-97f5-d3f9ae5832dd.filesusr.com/ugd/e36ea7_2919a060495342a08800311d67a09fe6.pdf?index=trueIn PDF document text
- https://e5eb5b25-b33c-43e3-82d5-57ab1bf863d8.filesusr.com/ugd/b0c717_dfe703b0f8d340b2a0a95c220ca2377e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/setikizo/bible_app_niv_version.pdfIn PDF document text
- https://6129906d-bc82-46a7-99f5-71793a58af3c.filesusr.com/ugd/d162e3_e3f1f3950ef748f18a569bbdc4138550.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/megelugik/90125562327.pdfIn PDF document text
- https://s3.amazonaws.com/zowejunef/omg_cartoon_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6eb3ebd2-cc87-48d3-bfd3-df96d96ea097/utilitech_pro_ul-ac-pump_parts.pdfIn PDF document text
- https://fa90eb46-aa9b-4fd1-a2e8-e903ec8e50a4.filesusr.com/ugd/575fb0_fbfb23a5b07f470f816e929c65a63fae.pdf?index=trueIn PDF document text
- https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_1219a5831b51418eb47d71a23c5eb4b1.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/widiku/best_fast_browser_for_android_2019.pdfIn PDF document text
- https://s3.amazonaws.com/vezumobigodub/gofitatelis.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_off0000eb41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB41 | 5580 bytes |
SHA-256: 9f8bd645938aff3ce2c6a98f1fee5a1e9ed63406aa3e6ce79c38555031cd9d4f |
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font_01_sfnt_off0000fe1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE1E | 10460 bytes |
SHA-256: b386daaa530a60fe0cf24c85c26b1f0bac23073bd41ded39a5347b26c9684570 |
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