MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting the intent is to trick users into visiting a malicious site, likely for phishing or malware distribution. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=rocefin+injet%25C3%25A1vel+bula+pdf In PDF document text
- http://files.cpathleticboosterclub.org/uploads/1/3/0/9/130969403/nirexudori.pdfIn PDF document text
- http://files.oregonlumberworks.com/uploads/1/3/1/4/131483148/6199621.pdfIn PDF document text
- http://files.naturaleducators.com/uploads/1/3/2/6/132681479/xuxosawojesabugol.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0439/0669/5320/files/10201062210.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4302/0183/files/ladubabejoziritatoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2950/3908/files/30439832589.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3680/3233/files/50059262665.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9372/1255/files/selenium_ide_automation_testing_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0704/9877/files/zaremasat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7274/8710/files/mexonitenewitedinugabaruf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5107/4214/files/angular_tutorial_point.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4077/5064/files/85135495756.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3633/4485/files/83578223674.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7537/1159/files/jovowabilekufefavizekut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4381/4560/files/3622567216.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/vapisezuruvogovuruno.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000aa69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAA69 | 5272 bytes |
SHA-256: 4b668a1e8a91c27f79d41025dec4ce1610f5ebf51dcf34c6e1d7bdb4a9624f65 |
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font_01_sfnt_off0000bbda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBDA | 10352 bytes |
SHA-256: c888390e33500367d8432da30b49729cdccf339960eb313df14752c62b451e38 |
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font_02_sfnt_off0000df41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF41 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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