MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded 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 appears to be part of a lure for a 'Nielsen total audience report 2020 pdf'. The presence of a malicious redirector and a link farm suggests an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.
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=nielsen+total+audience+report+2020+pdf In PDF document text
- http://files.thomasfamilyadventure.com/uploads/1/3/1/0/131070733/81607f7d18870.pdfIn PDF document text
- http://files.oldpathsdzingre.org/uploads/1/3/1/0/131071063/zinesemojuwi.pdfIn PDF document text
- http://files.sthelenasportsday.com/uploads/1/3/1/4/131438353/visetu-bemixugokaxono-volojeselaku-bafawobowodiwuk.pdfIn PDF document text
- http://files.angrypandanetworking.com/uploads/1/3/1/6/131606003/c593287c9769.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/1/0432/4923/8178/files/77980340444.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9397/3405/files/60195229668.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9389/4044/files/familia_bacillaceae.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9569/5266/files/97374403665.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/bikilokuritedozukavufokar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0244/5475/files/budgeting_in_management.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9821/7378/files/70584598717.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8909/9938/files/aashto_roadside_design_guide_2020_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9148/3042/files/bartender_lyrics_lady_antebellum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/39858795743.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vukabisozudetilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4513/5260/files/54180338159.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8897/7813/files/depepixumerokonus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7196/2269/files/alembic_pharma_products_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4684/6107/files/2878088661.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_off00006d5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D5B | 5392 bytes |
SHA-256: a153e5c51b82490241fccd1e83c0e3bdcc96c86bacb58921de655d305a10ef8c |
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font_01_sfnt_off00007fbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FBF | 10192 bytes |
SHA-256: f2950c21072be5b5eba45b69429b03416e09b675d96a1f2c702ab28b805fae48 |
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