MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a critical heuristic due to its inclusion of a link to a known malicious redirector. It also contains a large number of external PDF links, characteristic of a link farm. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware delivery page. The document body itself is heavily obfuscated and contains embedded 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.com/pify?keyword=escala+apgar+recem+nascido+pdf
- http://files.pioneerradio.org/uploads/1/3/0/7/130740112/modajebukuzozi.pdf
- http://files.vizstationstl.com/uploads/1/3/0/7/130775859/tuzapuwub_xatadaxusa_jubujilod_jenobogevato.pdf
- http://files.flipsidetoo.com/uploads/1/3/1/3/131383444/6c923a354c4d5d9.pdf
- https://cdn.shopify.com/s/files/1/0429/6730/2295/files/97863757893.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31906594002.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/60217987041.pdf
- https://cdn.shopify.com/s/files/1/0433/0379/6894/files/91854180031.pdf
- https://cdn.shopify.com/s/files/1/0435/4536/2591/files/napuzibagejal.pdf
- https://cdn.shopify.com/s/files/1/0447/2792/6937/files/couch_to_5k_reddit.pdf
- https://cdn.shopify.com/s/files/1/0446/3240/8227/files/delete_heroku_app.pdf
- https://cdn.shopify.com/s/files/1/0431/2173/7882/files/11720272108.pdf
- https://cdn.shopify.com/s/files/1/0434/1468/3815/files/analogias_verbales_ejemplos.pdf
- https://cdn.shopify.com/s/files/1/0434/1468/3815/files/38432308947.pdf
- https://cdn.shopify.com/s/files/1/0431/3219/0876/files/bonopuwojosejiboresapel.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_off00007720.binbd5db2b5c6c86993bf3a0104acbc97d5af61254e0e630d1114cccf8d1d062476 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7720 | 5432 bytes |
font_01_sfnt_off00008987.bin5d84e01b8e27e44346c0c1fbb9916b2d25562de343de45709dd83dfed7579ae8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8987 | 14912 bytes |
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