MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service. The ML classifier strongly indicates maliciousness. The primary malicious URL identified is https://ttraff.cc/pify?keyword=auditoria+informatica+gonzalo+alonso+rivas+pdf, which is likely used to redirect users to further malicious content. The document body itself is heavily obfuscated but contains references to the malicious URLs.
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.cc/pify?keyword=auditoria+informatica+gonzalo+alonso+rivas+pdf
- http://files.utahproaudio.com/uploads/1/3/1/6/131607232/8367714.pdf
- http://files.yoonjungkang.com/uploads/1/3/1/4/131438177/favupid.pdf
- http://loxiv.campwannacombac.com/uploads/1/3/1/4/131406717/1409445.pdf
- http://files.concordstorefixturegroup.com/uploads/1/3/2/6/132682684/zonudasenazako_zexukepuwuwide.pdf
- https://cdn.shopify.com/s/files/1/0445/8423/9268/files/comment_attirer_la_chance.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdf
- https://cdn.shopify.com/s/files/1/0437/7113/4106/files/spiritual_leadership_j_oswald_sanders.pdf
- https://cdn.shopify.com/s/files/1/0437/7565/6094/files/54306318844.pdf
- https://cdn.shopify.com/s/files/1/0438/2218/6656/files/bobrick_b_2111.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65028435792.pdf
- https://cdn.shopify.com/s/files/1/0451/6475/7146/files/accidente_de_trabajo_definicion.pdf
- https://cdn.shopify.com/s/files/1/0431/3831/8487/files/26639553449.pdf
- https://cdn.shopify.com/s/files/1/0433/8532/3683/files/xakizefepiwadejigamaremep.pdf
- https://cdn.shopify.com/s/files/1/0434/6698/1542/files/gotagisevanilogegu.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_off00005fc5.bin801a908693c3775e06634ee3582700057f37f0111b4cc494b0a6f16517a87f2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FC5 | 5576 bytes |
font_01_sfnt_off000072bc.binb9d42de7b4f9049c99a51b053612bfe709c0d0994dd3c1c98d16c61bcbc100cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72BC | 9852 bytes |
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