MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The embedded document body contains a URL pointing to a redirector, which is also listed as a primary IOC. The ML classifier also strongly indicated maliciousness. The primary attack pattern is a lure to a malicious site, likely for SEO poisoning or phishing.
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=teoria+del+aprendizaje+social+y+desarrollo+de+la+personalidad+pdf
- http://files.tapiaartstudio.com/uploads/1/3/1/4/131407315/limorogafilaboloz.pdf
- http://files.dogriverhorseclub.com/uploads/1/3/2/7/132740763/c909ad5398399.pdf
- http://files.thewineevent.org/uploads/1/3/0/8/130814208/3f89be7.pdf
- http://files.saverosselevator.com/uploads/1/3/0/8/130814636/dd695690.pdf
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/vofiravusuwojekukiv.pdf
- https://cdn.shopify.com/s/files/1/0428/7738/6918/files/super_mario_bros_3_online.pdf
- https://cdn.shopify.com/s/files/1/0437/7886/7358/files/cours_anglais_niveau_debutant.pdf
- https://cdn.shopify.com/s/files/1/0433/0081/4998/files/taxukitimit.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/59654297510.pdf
- https://cdn.shopify.com/s/files/1/0432/5959/2859/files/ripemef.pdf
- https://cdn.shopify.com/s/files/1/0436/0205/1229/files/wubelogujururezojanes.pdf
- https://cdn.shopify.com/s/files/1/0432/4923/8179/files/fidusuvixo.pdf
- https://cdn.shopify.com/s/files/1/0433/3754/7929/files/26164254069.pdf
- https://cdn.shopify.com/s/files/1/0433/9548/1750/files/43822760857.pdf
- https://cdn.shopify.com/s/files/1/0435/3776/0408/files/naval_base_san_diego_zip_code.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007217.bin9dfa5565cc42387b84e6170cefdc2b653638f6c0bb972050e95fe81320597d47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7217 | 5324 bytes |
font_01_sfnt_off00008459.bina0ad39609149ac4805067a897d0282f5b8d4b1c32aa5f859e3b67bfa8b205aec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8459 | 10776 bytes |
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