MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a lure related to a 'Berkley fishing guide shirt' but is primarily a link farm with 26 external PDF links, many pointing to Shopify. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/wix?keyword=berkley+fishing+guide+shirt'. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and contains the malicious URL.
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.ru/wix?keyword=berkley+fishing+guide+shirt
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/5657/8212/files/sql_server_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0434/5679/0678/files/beneath_this_man_book.pdf
- https://cdn.shopify.com/s/files/1/0437/3073/1173/files/guxirilila.pdf
- https://cdn.shopify.com/s/files/1/0429/8961/7311/files/cis_vs_trans_cyclohexane_chair_conformation.pdf
- https://cdn.shopify.com/s/files/1/0435/7426/3963/files/natusokekawitafarubejiv.pdf
- https://cdn.shopify.com/s/files/1/0434/2359/6693/files/2020_volkswagen_beetle_manual.pdf
- https://cdn.shopify.com/s/files/1/0434/0596/7514/files/bavowotifutanabirov.pdf
- https://static.usrfiles.com/ugd/225520_32a7b8e1b96546158055627bdc8df327.pdf
- https://static.usrfiles.com/ugd/756799_fde4f272fb48469eb9dcd8f553bc0f78.pdf
- https://static.usrfiles.com/ugd/724bd4_3f3aa527135c495fbeb01ec47ee910b8.pdf
- https://static.usrfiles.com/ugd/23e9be_826b7f5d10314255b8840f544fe58867.pdf
- https://cdn.shopify.com/s/files/1/0429/1405/4300/files/lagesipukaxim.pdf
- https://cdn.shopify.com/s/files/1/0437/0097/7818/files/95639975099.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000571f.bin69bed0c84a669c280310387e38ba0580baaa9bee2386f99a7b95c26911bbd7b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x571F | 5172 bytes |
font_01_sfnt_off000068c9.bin874ab6e2bd67488db00ce37f8f223e86cf4afbfb4cd5de1ac49520478fc3bd2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68C9 | 10448 bytes |
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