MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document body and embedded URLs suggest a lure related to educational materials, likely to trick users into clicking the malicious link. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm SEO strategy to improve search engine ranking for malicious content.
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.cc/pify?keyword=cambridge+igcse+first+language+english+workbook+answers In PDF document text
- http://xabob.antoniacundy.com/uploads/1/3/2/6/132695219/zemimonofeba.pdfIn PDF document text
- http://files.bethanywelchfitness.com/uploads/1/3/0/7/130739699/noputixijuwozef_liruse_vufile_nofibejikiti.pdfIn PDF document text
- http://files.hombomtoys.net/uploads/1/3/1/3/131383949/joxixurifuweval_tofofenidofe_refoda_fakew.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/1/0428/4389/8019/files/pajutibolerezodo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1750/0834/files/92012870685.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1771/4338/files/alternation_of_generation_in_archegoniate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7571/4715/files/nokasejubajevob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5333/5207/files/22433049028.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6281/3084/files/26667099296.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4586/9985/files/tugawedenodawogagizujolut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6825/1548/files/37325663523.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8351/3494/files/pefoxus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8524/2269/files/days_of_the_week_and_months_in_spanish.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1080/9256/files/munawa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3566/4284/files/alexander_pope_essay_on_criticism.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/3173/3159/files/akashic_records_book.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004ca3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4CA3 | 5636 bytes |
SHA-256: 6cf4de4aae62ea4ce9ed4b8a3df6afa60d0976b7c9a63fba15fbe37c9cd576ed |
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font_01_sfnt_off00005fb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FB0 | 10328 bytes |
SHA-256: 434dcf3b26ae955e8fcc5663437ca1aec5c236da4058d48cfb2900bc52d3f401 |
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font_02_sfnt_off000082cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82CC | 16164 bytes |
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6 |
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