MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'coursebook PDF'. The primary malicious URL identified is ttraff.com, which is used to redirect users to other sites. 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.com/pify?keyword=cambridge+international+as+and+a+level+business+studies+coursebook+pdf In PDF document text
- http://sagarijin.houseofgodusa1.com/uploads/1/3/2/6/132696323/fotinat.pdfIn PDF document text
- http://files.foundationsofadolescentministry.com/uploads/1/3/1/4/131408027/baligaxaxe.pdfIn PDF document text
- http://files.kfbca.com/uploads/1/3/0/7/130738823/xefimadaxutuluzam.pdfIn PDF document text
- http://files.whynotusmarketing.com/uploads/1/3/2/6/132682882/jaxumep.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/1/0428/9835/8432/files/81108552740.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3495/9256/files/rejevatorazawofuxamipud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/xarorugivivetupiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/2204/6616/files/gufunuzoxuzobukivuwejotas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0683/5358/files/89006213528.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1157/1865/files/where_are_fortnite_replays_saved.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8295/7478/files/xutosigowebopunexutodemi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7581/9927/files/discord_tos_nsfw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5238/1846/files/zisaruwijur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6643/3429/files/27108864780.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8799/4792/files/femozuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5314/5495/files/dotogo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3121/5780/files/76727472401.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5546/4104/files/83775672199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.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_off0000686e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x686E | 5644 bytes |
SHA-256: 1b53f3b3b01958ea36b5005a95566852666d59788a1fb934c438367ac72382bf |
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font_01_sfnt_off00007b96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B96 | 13072 bytes |
SHA-256: 97559695ebae2795f7a1a9acb835f4217044510c3237dd327e1c36d8bfa76c68 |
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