MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to academic exercises and includes the malicious URL, suggesting a lure to disguise malicious intent. The presence of a large number of external PDF links further indicates a link farm or SEO manipulation tactic, likely to distribute malware or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://ttraff.ru/pify?keyword=past+simple+and+past+continuous+exercises+pdf+1o+bachillerato
- http://files.mrwildinghomeroom.com/uploads/1/3/2/6/132696233/dovezemoxena-fulodubazoxa-vizegojisosipux.pdf
- http://files.kristinachan.com/uploads/1/3/1/4/131438151/1664941.pdf
- http://files.whimsicalwit.com/uploads/1/3/1/8/131858287/950f4.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/5351/3881/files/47576140799.pdf
- https://cdn.shopify.com/s/files/1/0431/7813/1611/files/26080974790.pdf
- https://cdn.shopify.com/s/files/1/0433/2729/1544/files/pubodikenexamu.pdf
- https://cdn.shopify.com/s/files/1/0433/8089/9989/files/98832232274.pdf
- https://cdn.shopify.com/s/files/1/0434/7202/7814/files/kukajet.pdf
- https://cdn.shopify.com/s/files/1/0431/6404/1373/files/boravujuxevepixosopa.pdf
- https://cdn.shopify.com/s/files/1/0429/7955/7529/files/deviwevut.pdf
- https://cdn.shopify.com/s/files/1/0439/4188/8155/files/titumupu.pdf
- https://cdn.shopify.com/s/files/1/0434/3834/2311/files/bmi_calculation_formula.pdf
- https://cdn.shopify.com/s/files/1/0432/0860/5859/files/vuvajaxutujasep.pdf
- https://cdn.shopify.com/s/files/1/0430/4453/6473/files/jon_rogawski_calculus_second_edition_solutions.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005e83.bin1619e143bedb70bf737ecef331306d5856eb6dfe0d0b8b76d604cbef98079aa6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E83 | 5656 bytes |
font_01_sfnt_off0000719a.bin60d3980c5c21328ff397651efc6ba83091e57c7db3def92d181665d37bc765c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x719A | 10188 bytes |
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