MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to SEO-optimized PDF farms and redirectors, indicating a phishing or malware distribution attempt. The primary redirector URL is https://ttraff.ru/pify?keyword=cisco+ccna+voice+syllabus+pdf, which is flagged as malicious. The document body itself is heavily obfuscated but contains references to the Cisco CCNA Voice syllabus, likely a lure to encourage clicks on the malicious links. The ML classifier strongly indicates 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=cisco+ccna+voice+syllabus+pdf In PDF document text
- http://files.stjamesstjames.org/uploads/1/3/0/9/130969446/lipudagufiwawi_zoxixumefa_pavakitowufe_figexubaxupejes.pdfIn PDF document text
- http://wotekis.ao-americas.com/uploads/1/3/1/6/131637136/xibugopon.pdfIn PDF document text
- http://files.newlifestylesnepelenaferraretto.com/uploads/1/3/0/7/130775174/70b24689.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/1/0434/4145/5254/files/5648969571.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6745/7182/files/sokonigexip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4583/7208/files/37173541412.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5497/3606/files/algebra_2_solving_rational_equations.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0557/4309/files/mafurufujulibos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7852/4832/files/sway_dean_martin_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3224/7457/files/capsaicina_pura.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/4985/6669/files/morphemes_morphs_and_allomorphs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9072/2472/files/viposuveganazaxag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9411/3446/files/97167016015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/back_to_school_activities_for_kindergarten.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9621/0594/files/4311183404.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_off00005cbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CBB | 5260 bytes |
SHA-256: e8349df308c6cfcf4db4ab194e0599846698173869c598e751600755ef998038 |
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font_01_sfnt_off00006eb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EB4 | 10032 bytes |
SHA-256: a8edb58b7f872d74f9171b3bf76bbb148aafa02ec59435d8f315ba9a7f7ed01b |
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