MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The document body, though obfuscated, contains the same URL as the primary link, suggesting a lure to external content. The ML classifier strongly indicates maliciousness, and the link farm heuristic confirms the suspicious nature of the embedded URLs.
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=mother+tongue+based+multilingual+education+deped+pdf
- http://rotem.juliaopawska.com/uploads/1/3/1/3/131379803/donapo_tejut_noxerasekasat.pdf
- http://files.afterthefallinc.com/uploads/1/3/0/8/130874213/burifikivaberu.pdf
- http://veketudu.kreationsbykarenjewels.com/uploads/1/3/1/3/131398091/fidibudazuzip_xinotu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/26207254187.pdf
- https://cdn.shopify.com/s/files/1/0433/3741/6869/files/11540658244.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/pepepoler.pdf
- https://cdn.shopify.com/s/files/1/0433/8089/9989/files/65457607666.pdf
- https://cdn.shopify.com/s/files/1/0437/8610/9086/files/acute_abdomen_articles.pdf
- https://cdn.shopify.com/s/files/1/0429/1588/9305/files/64384019346.pdf
- https://cdn.shopify.com/s/files/1/0438/1471/5549/files/1984_graphic_novel.pdf
- https://cdn.shopify.com/s/files/1/0440/7502/4549/files/wadalubaxuvuligugepedilur.pdf
- https://cdn.shopify.com/s/files/1/0436/5395/5742/files/ritikevodotixabusepot.pdf
- https://cdn.shopify.com/s/files/1/0428/8921/6167/files/81688686227.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_off00006703.bin8466cbbdc5d3a5817a223aad91251c19e73db67e7eb2169fd830a4a90d938516 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6703 | 5716 bytes |
font_01_sfnt_off00007a4d.binc704a142a7c9a780dadf3e7692bd32d12dd886106e99e536850c0685fa98c968 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A4D | 10052 bytes |
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