MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of external links, many of which point to a redirector service known for malicious activity. The primary malicious URL identified is https://ttraff.cc/pify?keyword=marcador+tumoral+antigeno+carcinoembrionario+pdf, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a link farm strategy to distribute malicious payloads.
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=marcador+tumoral+antigeno+carcinoembrionario+pdf
- http://files.bhlexvolunteers.com/uploads/1/3/2/6/132683246/zulijadamekapav.pdf
- http://files.mhecblacon.com/uploads/1/3/1/4/131437351/vasak.pdf
- http://files.awordtothewiseandcommonsense.com/uploads/1/3/2/7/132740958/jubizuvime.pdf
- http://files.gordon-setter.pl/uploads/1/3/0/7/130776363/mamixukori-wulun.pdf
- https://cdn.shopify.com/s/files/1/0433/8457/0019/files/17530198407.pdf
- https://cdn.shopify.com/s/files/1/0437/8161/9870/files/garapajeb.pdf
- https://cdn.shopify.com/s/files/1/0434/8575/7606/files/29144487135.pdf
- https://cdn.shopify.com/s/files/1/0432/3262/4797/files/area_of_shapes_test.pdf
- https://cdn.shopify.com/s/files/1/0431/1564/3031/files/90804501936.pdf
- https://cdn.shopify.com/s/files/1/0427/8052/4710/files/94289378583.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdf
- https://cdn.shopify.com/s/files/1/0435/8579/8301/files/22138008060.pdf
- https://cdn.shopify.com/s/files/1/0437/8502/7745/files/sofokles_antigona_kniha.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_off000063b6.binbc9a872935451553d4999d717677bc86300685400227e89546b6fb0c55a137eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63B6 | 5444 bytes |
font_01_sfnt_off0000762f.bina845ff0f16120ab90190de64ac80a123ee4bd958099ff5e0df7337cb610eec19 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x762F | 15092 bytes |
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