MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link that redirects to a known malicious domain, ttraff.com, which is flagged as a redirector. The document body, though heavily corrupted, contains text related to a 'study guide answers' lure, aligning with the malicious redirector's purpose. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning technique to distribute the malicious lure.
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.com/pify?keyword=on+cooking+5th+edition+study+guide+answers In PDF document text
- http://files.brianbustosart.com/uploads/1/3/1/3/131383284/najaruveg.pdfIn PDF document text
- http://files.cprlifesupport.com/uploads/1/3/2/8/132815872/tujujixetuzafi-kifuba-jisezag-todejoxerusi.pdfIn PDF document text
- http://files.gvtrail.com/uploads/1/3/2/6/132681443/fba35caa8b86.pdfIn PDF document text
- http://files.mindbuild.org/uploads/1/3/1/0/131071243/ditapoxikawon-kejogenowon.pdfIn PDF document text
- http://files.holidaylightingstl.com/uploads/1/3/1/6/131606408/5282606.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/1/0431/6083/0116/files/xipejeriti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3403/9704/files/93097617417.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2793/1029/files/98602806125.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0293/4942/files/bixakimiwu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7710/5832/files/biridimuzanum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7392/9378/files/92773820398.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1761/7057/files/83893747283.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kerikelamizefebimu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5985/3977/files/moduvejaxotaluzowojilevur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7540/3929/files/49516913283.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3461/5706/files/gifibumirerolavib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8904/3358/files/wivuxufanokimijo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2925/0719/files/10164403499.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2135/2606/files/11537038644.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_off000064f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64F7 | 5576 bytes |
SHA-256: 538bc4e20eb2e2ed1ece190fc8de8d0f5fc097ecc30807655af2f5bc000c2393 |
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font_01_sfnt_off00007803.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7803 | 10268 bytes |
SHA-256: 7cb8933d82755e5602dec43d5ad1c5392bcc6ebb29616b9b21914111a26fe169 |
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