MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=atrial+fibrillation+medication+guidelines', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
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/pify?keyword=atrial+fibrillation+medication+guidelines
- http://files.thebettajivereview.com/uploads/1/3/1/4/131438011/relur.pdf
- http://miziwonul.beckerbelieveit.com/uploads/1/3/0/7/130738950/6084433.pdf
- https://cdn.shopify.com/s/files/1/0433/8827/2807/files/77978925480.pdf
- https://cdn.shopify.com/s/files/1/0434/3123/1649/files/24419975753.pdf
- https://cdn.shopify.com/s/files/1/0429/9217/3217/files/nanoketu.pdf
- https://cdn.shopify.com/s/files/1/0432/6467/1909/files/fawojixaxirurova.pdf
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/zigusex.pdf
- https://cdn.shopify.com/s/files/1/0431/4018/6268/files/large_milk_stardew.pdf
- https://cdn.shopify.com/s/files/1/0433/7093/8533/files/credit_card_authorization_form_hotel.pdf
- https://cdn.shopify.com/s/files/1/0431/8114/6280/files/htet_computer_science_books_free_download.pdf
- https://cdn.shopify.com/s/files/1/0431/8933/8276/files/gugininasisub.pdf
- https://cdn.shopify.com/s/files/1/0435/2134/3647/files/ludwig_van_beethoven_biography.pdf
- https://cdn.shopify.com/s/files/1/0462/0055/3635/files/change_date_format_php_strtotime.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005d0e.bina125754ca418984d5d3bafde2846a0ced92d159b8a875efaa96dbc0aa48366d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D0E | 5352 bytes |
font_01_sfnt_off00006f1c.bine5a44c52e9ef13321a4c0c55a208f08b81328a279857708c9d1c1a52f44ed98f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F1C | 10028 bytes |
font_02_sfnt_off0000915e.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x915E | 4324 bytes |
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