MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=map+metro+moscow+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0433/1234/9334/files/ischemic_stroke_pathophysiology.pdf'. The document body, though heavily obfuscated, contains the same URL as the redirector, suggesting a deliberate attempt to disguise the malicious destination. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=map+metro+moscow+pdf In PDF document text
- http://files.camdentonpawn.com/uploads/1/3/0/8/130813526/4045864.pdfIn PDF document text
- http://files.cuestacollegerodeo.com/uploads/1/3/1/4/131483550/f518ae417.pdfIn PDF document text
- http://files.tobyupci.com/uploads/1/3/0/8/130813614/c4307d0a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1234/9334/files/ischemic_stroke_pathophysiology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/tipibar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2904/4119/files/rumination_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2060/6885/files/tewetarinigedufafiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7785/1553/files/tomanitot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24221046066.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8291/4723/files/thinking_fast_and_slow_summary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3095/3627/files/minecraft_target_selectors.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5703/7990/files/hindu_religious_books_in_bangla_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/5152/1947/files/98678864630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0265/0014/files/94282471945.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2556/3799/files/2752670639.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3598/4029/files/juwakovulexure.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000126b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126B7 | 5364 bytes |
SHA-256: 5fba8251762ed0ef0d8ebaf528936145c5b2efaf4df1a4eddb9c57cf66bcf2f0 |
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font_01_sfnt_off000138fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138FD | 11920 bytes |
SHA-256: f27ef8c8899ce1a0cd9552c9ee911ecb0ae9ed5054171b267902519f094be5cf |
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