MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, directing users to a URL associated with malicious activity. Additionally, it exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, suggests a lure related to IELTS practice tests, likely intended to entice users to click the malicious link.
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/wb?keyword=ielts%20general%20training%20reading%20practice%20test%20with%20answers%20pdf In PDF document text
- http://files.katarzynasawicz.com/uploads/1/3/0/8/130874250/6760423.pdfIn PDF document text
- http://files.lfstrategy.com/uploads/1/3/0/7/130775657/xibegube.pdfIn PDF document text
- http://files.donemanapc.com/uploads/1/3/1/1/131164386/2660aadaff.pdfIn PDF document text
- http://files.leongsmeathousekauai.com/uploads/1/3/1/8/131872017/843ef4dac4022.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/1/0427/7328/2983/files/kebukekafovusumov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3151/7605/files/sununutozoxonamotezefukev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdfIn PDF document text
- https://xomakumugi.files.wordpress.com/2020/06/pibelenewavaw.pdfIn PDF document text
- https://netigosod285927460.files.wordpress.com/2020/06/25901154750.pdfIn PDF document text
- https://runumodometo.files.wordpress.com/2020/07/76161918152.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0706/5757/files/xefuvevifun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7230/7875/files/77383654599.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3770/4867/files/wizozivanivujofaselumovo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8259/6004/files/buvivizopizom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3199/4280/files/nelobomu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9313/9364/files/6502026735.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26160609228.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8022/8759/files/wisifuw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3260/7894/files/livopafuramavobamugi.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_off00007ba0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BA0 | 5124 bytes |
SHA-256: db055286accc0aa479881f2af98f66dcfcbec234ff29b05f0c05b3def2e6566b |
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font_01_sfnt_off00008d0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D0C | 10336 bytes |
SHA-256: 46b1cddc7c6c960591b3c91b9b1e062cf2c176b5a5eac16b9388839664598193 |
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