MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also exhibits PDF_SEO_LINK_FARM behavior by embedding a large number of external links, many pointing to benign Shopify URLs but including a malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and text suggesting a lure for 'video sites mp4'. No scripts were extracted, but the embedded links are the primary mechanism for redirection.
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=video++sites+mp4
- http://files.mrssmithsclasses.com/uploads/1/3/0/7/130775180/9297afcadaa6.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0427/7354/5116/files/carboxylic_acid_group_chemguide.pdf
- https://cdn.shopify.com/s/files/1/0431/6728/5408/files/18522788199.pdf
- https://cdn.shopify.com/s/files/1/0432/8656/0936/files/29193661375.pdf
- https://cdn.shopify.com/s/files/1/0438/8637/9160/files/42225272802.pdf
- https://cdn.shopify.com/s/files/1/0447/9251/2678/files/81293103992.pdf
- https://cdn.shopify.com/s/files/1/0431/6338/6016/files/38174978063.pdf
- https://cdn.shopify.com/s/files/1/0430/9132/9173/files/ropoketejiwub.pdf
- https://cdn.shopify.com/s/files/1/0429/4000/6559/files/kebexumowamoreti.pdf
- https://cdn.shopify.com/s/files/1/0437/5465/1799/files/65550914088.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_off00005e04.bin235de5954aaf07dd8478a59fb5d721bfd6f8a87e9d2b8de7ca4f43dd19c70894 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E04 | 4820 bytes |
font_01_sfnt_off00006e65.bin5108fa0db99935741c5eb63c411a16d9921c6d82d7b005df464a9866d5689312 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E65 | 10192 bytes |
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