MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains multiple embedded links, with one heuristic identifying it as a malicious redirector. The document body text and embedded links suggest a lure to download a 'Basic English grammar workbook'. The primary malicious URL identified is ttraff.ru, which is used to redirect the user to a secondary URL. The PDF structure also indicates a link farm, with many links pointing to Shopify domains, likely for SEO manipulation to increase visibility of 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.ru/pify?keyword=basic+english+grammar+workbook+azar+pdf In PDF document text
- http://files.albanyems.com/uploads/1/3/0/7/130776795/beruka.pdfIn PDF document text
- http://pewezaro.parentsoftransgenderkids.org/uploads/1/3/1/6/131637016/gazilekabukugit.pdfIn PDF document text
- http://files.jerseyshorechefs.com/uploads/1/3/1/4/131406427/124f5.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/1/0435/0623/7604/files/mesidela.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0499/7271/files/precalculus_stewart.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3906/4225/files/jobelag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7631/2471/files/lawusofuxoto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rerotapok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1241/5897/files/45284124678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3749/1354/files/31187986342.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0007/0307/files/xubezugemu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9524/5475/files/bimigoxutor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7085/7122/files/zupizavosuvo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2823/1830/files/super_bluetooth_hack_1._08_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1356/0727/files/mage-_tastic_gizmonitor_vanilla.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/69168327120.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2909/3800/files/lethal_and_sublethal_genes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0441/8455/files/67913239807.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_off00005f9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F9F | 5964 bytes |
SHA-256: 11ebe285fb4ba0f31ba37e92cff0cf32458052b5dadaf2a5c9b22fd0ac5336df |
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font_01_sfnt_off000073da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73DA | 15048 bytes |
SHA-256: 081957e5b8b6fd1a981b0725430fa6b34979fe12658e3368f742c9ffde350c3a |
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