MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1200 Hardware Add-in
This PDF document contains a large number of embedded links, with the primary malicious link pointing to a redirector service at 'ttraff.ru'. This service likely obscures the ultimate malicious destination, which is a common tactic for distributing malware or phishing content. The presence of a link farm suggests an attempt to manipulate search engine results or distribute content widely. The ML classifier 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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=seal+physical+training+guide In PDF document text
- http://files.beyondnailartsupply.com/uploads/1/3/0/8/130874520/tosukasagen.pdfIn PDF document text
- http://files.capecodspeechlanguagepathologists.com/uploads/1/3/0/7/130740011/terel.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/1/0428/6083/9079/files/93723709327.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1405/4300/files/73505583841.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5310/4790/files/89152318093.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8923/8943/files/freak_the_freak_out_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/7122/1410/files/libro_phillips_materiales_dentales.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8774/9525/files/wejeludedototodirav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7426/4981/files/2279503757.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0319/0181/files/tiwolitumilaxemikepi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7902/5318/files/c1_cambridge_exam_sample.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5407/8883/files/business_case_studies_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5774/9917/files/felejuni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8150/4670/files/37227802664.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2036/7510/files/current_affairs_july_2020_affairs_cloud.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_off000066f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66F8 | 5540 bytes |
SHA-256: 6c0e29625d1ad0ffb893e3e142ba3ff2a2e2a1d64c4b33bf366fbf9ece62206e |
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font_01_sfnt_off000079b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79B8 | 10392 bytes |
SHA-256: 1dc2ec888b8f26aae607e3f1728d49964b49654bb24f82151e578887aadc65d6 |
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