MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, appears to be a lure related to interview questions, intended to trick users into clicking the malicious link. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a link farm designed for SEO manipulation to distribute malicious content.
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.com/pify?keyword=interview+questions+and+answers+on+data+structures+for+freshers+pdf
- http://files.adriangoldberg.com/uploads/1/3/1/0/131070072/c5daedb85484.pdf
- http://japubaru.ninepoundcatfish.co.uk/uploads/1/3/0/8/130874493/4575346.pdf
- http://files.josephpkelly.com/uploads/1/3/0/7/130739122/aec861cf.pdf
- http://files.lilacvillagebb.com/uploads/1/3/1/8/131871621/didajisobepufe.pdf
- https://cdn.shopify.com/s/files/1/0439/0807/1576/files/jikalo.pdf
- https://cdn.shopify.com/s/files/1/0434/9883/2037/files/64683046767.pdf
- https://cdn.shopify.com/s/files/1/0429/6939/9452/files/jafuzodupotixadiveg.pdf
- http://files.mesweeney.people.ua.edu/uploads/1/3/2/6/132682829/komime.pdf
- https://cdn.shopify.com/s/files/1/0430/8720/0418/files/32278784205.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niborenegukudokeregus.pdf
- https://cdn.shopify.com/s/files/1/0435/3651/5224/files/bijinazedebiruxotoradoza.pdf
- https://cdn.shopify.com/s/files/1/0430/8946/1410/files/aditya_birla_health_insurance_premium_chart.pdf
- https://cdn.shopify.com/s/files/1/0437/2194/9335/files/zoxobuluvemizuviz.pdf
- https://cdn.shopify.com/s/files/1/0428/1021/2519/files/46636873372.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_off000068bd.bin5fa07c2463cfd4c0451ac878621048901d5f2c5e80bc719f8337f722f56f8fbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68BD | 5424 bytes |
font_01_sfnt_off00007b42.bin411f3d9e24cc1a1ab59cae26bfa06b915e5d4f672e614947d2242eec9fd5ef72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B42 | 10152 bytes |
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