MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=nih+reporter+by+location. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com, suggesting a link farm designed to distribute traffic to potentially harmful destinations. No scripts were extracted, but the extensive use of malicious redirectors points to a phishing or malware distribution attempt.
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=nih+reporter+by+location
- https://cdn.shopify.com/s/files/1/0429/9993/9235/files/17370636001.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12035000993.pdf
- https://cdn.shopify.com/s/files/1/0434/8814/9654/files/18475160155.pdf
- https://cdn.shopify.com/s/files/1/0434/5508/6742/files/livro_dos_salmos.pdf
- https://cdn.shopify.com/s/files/1/0429/5429/3402/files/29898027478.pdf
- https://cdn.shopify.com/s/files/1/0435/5319/4133/files/bubolusarikivo.pdf
- https://cdn.shopify.com/s/files/1/0430/2703/8369/files/causes_of_ocean_pollution.pdf
- https://cdn.shopify.com/s/files/1/0431/2324/5216/files/infinite_warfare_zombies_spaceland_guide.pdf
- https://cdn.shopify.com/s/files/1/0434/5485/7369/files/84694434757.pdf
- https://cdn.shopify.com/s/files/1/0433/9793/9349/files/59143284736.pdf
- https://cdn.shopify.com/s/files/1/0434/6282/0005/files/gotitilene.pdf
- https://static.usrfiles.com/ugd/ca300b_585b96df71a04533a14956135097f929.pdf
- https://static.usrfiles.com/ugd/97aff7_d797a7a3f4864b77b9c821ec5213ddb6.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_off00004e59.bina15766d1569ae80546872c94b4eada934c298a7379863891540540aef18194bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4E59 | 5056 bytes |
font_01_sfnt_off00005f8b.bindb6a37eb7d96e9fce053ef9fb325bc7950d8c09972642281b388c3ca9a00c0dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F8B | 9712 bytes |
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