MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Aneurysm repair guidelines' and the malicious URL, suggesting a lure. The presence of a large number of embedded links, many hosted on cdn.shopify.com, indicates a link farm strategy. The ML classifier also strongly flagged this PDF as malicious.
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=aneurysm+repair+guidelines
- http://files.leguesepticservices.com/uploads/1/3/1/6/131606789/651974.pdf
- https://cdn.shopify.com/s/files/1/0430/7664/9127/files/59425589072.pdf
- https://cdn.shopify.com/s/files/1/0427/7587/1654/files/safety_reliability_and_risk_analysis_theory_methods_and_applications.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9354/files/padatenotutazugutakovo.pdf
- https://cdn.shopify.com/s/files/1/0436/9799/5941/files/fojewozurajizitakemakad.pdf
- https://cdn.shopify.com/s/files/1/0431/9110/7742/files/74377184837.pdf
- https://cdn.shopify.com/s/files/1/0451/1550/6853/files/answer_me_1988_episode_1.pdf
- https://cdn.shopify.com/s/files/1/0431/4929/5776/files/91577322434.pdf
- https://cdn.shopify.com/s/files/1/0431/0623/8613/files/kuzaregonefew.pdf
- https://cdn.shopify.com/s/files/1/0438/8411/8171/files/57442855443.pdf
- https://cdn.shopify.com/s/files/1/0427/8029/5334/files/palutebokaborebi.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_off0000615f.bin0d1fc2da18572e51a97cad42a04af7ab39d346a7732e457dff2a13a585f591e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x615F | 5368 bytes |
font_01_sfnt_off00007389.binc033598ac95f00a92c074b651af6869f83bd586cb784d645f7298bf89e713f93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7389 | 10112 bytes |
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