MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
T1071.001 Web Protocols
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=statistical+analysis+handbook+2020+edition+pdf, which is likely used to redirect users to a malicious site. The document body contains garbled text but includes the malicious URL and a seemingly benign document title, suggesting a lure for users. No scripts were extracted from this sample.
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=statistical+analysis+handbook+2020+edition+pdf In PDF document text
- http://files.deebibliophilia.com/uploads/1/3/2/3/132302872/336979.pdfIn PDF document text
- http://files.combscoffee.com/uploads/1/3/0/8/130814397/fabimufovaleras.pdfIn PDF document text
- http://files.edgingtonroaddistrict.org/uploads/1/3/2/8/132815748/bimezutewavanuk-topebo.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/1/0434/4155/3575/files/angles_in_a_triangle_worksheet_ks2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9150/1990/files/kofuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9200/9379/files/43028580197.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9200/9365/files/nissan_titan_repair_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5573/5193/files/gimp_user_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5346/6271/files/waposomiwomobigose.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5597/1480/files/17558426053.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6123/9192/files/25189274890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0961/3725/files/wosadas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6046/0706/files/92789944119.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8544/7833/files/dagal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetidolurat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4387/2150/files/mivuveluxurosur.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_off00006233.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6233 | 5616 bytes |
SHA-256: f83b600a439dffd8c92ec14c5461b8fdc7cb11c0c4393fe55c2c11bb84c1af22 |
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font_01_sfnt_off00007534.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7534 | 10516 bytes |
SHA-256: b4ec81d1fa6e6415a77dec46376ce0e879a5d5d92584bc1780e4565d7c9cdc15 |
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font_02_sfnt_off000098f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98F9 | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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