MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, many of which point to what appears to be a link farm designed to improve search engine rankings for software downloads. One prominent link, 'https://ttraff.ru/wb?keyword=adobe%20pdf%20reader%20for%20pc%2064%20bit', is flagged as a malicious redirector. The ML classifier strongly indicates maliciousness, and the overall structure suggests a social engineering attempt to trick users into downloading malware disguised as a legitimate application.
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/wb?keyword=adobe%20pdf%20reader%20for%20pc%2064%20bit
- http://files.weismann.net/uploads/1/3/2/7/132741375/9a3273e4e8caa.pdf
- http://puxem.guanjen.com/uploads/1/3/0/7/130738970/nefumuguwin_xapusimefoguv_nusenogorezonig_xemapuduvuzozi.pdf
- http://files.solosprinter.com/uploads/1/3/0/8/130813528/6179309.pdf
- https://cdn.shopify.com/s/files/1/0430/8205/5842/files/gozimapiruteliroma.pdf
- https://cdn.shopify.com/s/files/1/0428/1240/7967/files/jatavawowowogo.pdf
- https://cdn.shopify.com/s/files/1/0434/1337/3084/files/suffix_lesson_plan.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdf
- https://cdn.shopify.com/s/files/1/0433/5088/4505/files/jokufoketuferi.pdf
- https://cdn.shopify.com/s/files/1/0429/4171/0499/files/biomathematics_books.pdf
- https://cdn.shopify.com/s/files/1/0429/1588/9305/files/xobobidisofoxigo.pdf
- https://cdn.shopify.com/s/files/1/0433/0084/7781/files/64384426239.pdf
- https://cdn.shopify.com/s/files/1/0448/0781/5334/files/jurobigikenanawejuj.pdf
- https://cdn.shopify.com/s/files/1/0431/5411/2672/files/89150817431.pdf
- https://cdn.shopify.com/s/files/1/0434/6983/2354/files/luwawu.pdf
- https://cdn.shopify.com/s/files/1/0438/2585/6662/files/basics_of_accounting_and_finance.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_off00005e0c.bin071addff0ab63ef450cc0a2d796d9301a76a79b6314bbafa10a2838845fa3af1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E0C | 5308 bytes |
font_01_sfnt_off0000702d.bin64ef50ec1ecfe3fd958ef788f32128ffe7724c4f403428ab35eb961c32ff5b61 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x702D | 10524 bytes |
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