MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to known malicious redirector infrastructure at 'ttraff.ru'. The document body also contains the same URL and a lure related to an 'application letter template', indicating a social engineering attempt to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=application+letter+template+docx In PDF document text
- http://files.wynning-solutions.com/uploads/1/3/2/6/132681307/04d86.pdfIn PDF document text
- http://files.mikelahenrylowe.com/uploads/1/3/1/4/131438059/2426281.pdfIn PDF document text
- http://files.babbiemuseum.org/uploads/1/3/0/8/130814297/6809079.pdfIn PDF document text
- http://kujiw.mdt-agilityability.com/uploads/1/3/1/6/131606349/f89d91956cc1.pdfIn PDF document text
- http://files.professionaldevelopmentservices.com/uploads/1/3/1/8/131856039/nebujiluwes.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/1/0434/1714/1415/files/reading_comprehension_grade_6.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2449/9367/files/tukek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3818/7413/files/obsidian_farm_minecraft.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1161/0536/files/clinical_laboratory_chemistry.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7372/3800/files/jilisonate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3880/8991/files/70568481493.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0866/3456/files/lonuzem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1021/9432/files/1591950191.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8713/4882/files/adverb_phrase_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6558/1468/files/perdoname_gerardo_ortiz_lyrics.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_off00006966.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6966 | 5100 bytes |
SHA-256: bfd95d7990311c183f8b685328027a8d0e109990d83fec7eab6692bf04dd91c4 |
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font_01_sfnt_off00007a9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A9B | 10588 bytes |
SHA-256: 9706262f66192b78baf11be952ff443acd0cd7dc28b0812ae6d874c5dcc45f54 |
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