MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, includes the same URL and a deceptive title suggesting it's related to McGraw Hill TEAS V, likely to trick users into clicking the malicious link. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.
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=mcgraw+hill+teas+v+pdf
- http://files.k9securityireland.com/uploads/1/3/0/7/130740596/lunepagelugamuvu.pdf
- http://files.dressagestars.com/uploads/1/3/2/6/132681463/8249331027dc062.pdf
- http://files.notan.info/uploads/1/3/1/4/131437977/7080562.pdf
- http://files.jsaadsales.com/uploads/1/3/1/3/131380511/zinutisogeb-dutisikimivovug.pdf
- http://files.agroecologyhub.info/uploads/1/3/1/3/131383661/247a2482a6a.pdf
- https://cdn.shopify.com/s/files/1/0428/1594/6911/files/lagemavesopelog.pdf
- https://cdn.shopify.com/s/files/1/0435/2727/4645/files/gejunabozemiwapuwiwidus.pdf
- https://cdn.shopify.com/s/files/1/0429/7300/3939/files/fancy_reba_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0432/4868/1120/files/22280849322.pdf
- https://cdn.shopify.com/s/files/1/0433/0445/2246/files/69155784320.pdf
- https://cdn.shopify.com/s/files/1/0431/3756/4823/files/93488110905.pdf
- https://cdn.shopify.com/s/files/1/0427/9291/1007/files/juwunarapojudezuxaba.pdf
- https://cdn.shopify.com/s/files/1/0428/4248/8998/files/dufoverariruxi.pdf
- https://cdn.shopify.com/s/files/1/0437/7506/6273/files/67613044009.pdf
- https://cdn.shopify.com/s/files/1/0428/5333/5207/files/kurib.pdf
- https://cdn.shopify.com/s/files/1/0430/3503/3757/files/69564490299.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_off00007613.bindd7452c3206c2e55b8e7625ddd2f695dce8b332873bbfad2404cfd4d2ecdfc43 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7613 | 5576 bytes |
font_01_sfnt_off0000892e.bin55f1467c3048fb511a452255929de91bb1a23354072a693e248d7b7ce726ee3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x892E | 11176 bytes |
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