MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as information about medical procedures. The document also features a large number of links to other PDFs hosted on Shopify, likely part of a link farm to improve search engine ranking for malicious content. The ML classifier strongly indicated maliciousness.
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=ultrasound+guided+needle+biopsy+neck
- http://files.joel-nichols.com/uploads/1/3/1/3/131379844/8746961.pdf
- http://beged.starzgymca.com/uploads/1/3/2/8/132815296/7984354.pdf
- http://zamematir.tintawitaelderliving.com/uploads/1/3/0/8/130874038/8938673.pdf
- https://cdn.shopify.com/s/files/1/0443/8743/4662/files/19080795009.pdf
- https://cdn.shopify.com/s/files/1/0437/8309/4434/files/aiims_pg_prospectus.pdf
- https://cdn.shopify.com/s/files/1/0429/4272/6310/files/28871993045.pdf
- https://cdn.shopify.com/s/files/1/0435/4247/9000/files/braveheart_answer_the_question_gif.pdf
- https://cdn.shopify.com/s/files/1/0429/3532/0735/files/nitofaba.pdf
- https://cdn.shopify.com/s/files/1/0452/6050/5248/files/biology_book_for.pdf
- https://cdn.shopify.com/s/files/1/0431/1921/4756/files/99260503148.pdf
- https://cdn.shopify.com/s/files/1/0431/0371/5489/files/75689100366.pdf
- https://cdn.shopify.com/s/files/1/0428/9177/2063/files/18261447987.pdf
- https://cdn.shopify.com/s/files/1/0435/4244/6231/files/figure_caption_report.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_off00006649.bin5d350fd331704ac70881365894f417efd8def7072134e1116e5921c93773d974 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6649 | 5420 bytes |
font_01_sfnt_off000078c0.bind3f8f66bce9a3e63fc574ac4ebff81f9621b922c093d9f3c2f1fbea9bf55f757 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78C0 | 10324 bytes |
font_02_sfnt_off00009c02.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C02 | 4324 bytes |
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