MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector. This suggests the document is designed to act as a link farm, potentially leading users to malicious websites or phishing pages. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=northstar+3+reading+and+writing+pdf
- http://files.johnlugotrebble.net/uploads/1/3/1/4/131437513/2656d6205cb904c.pdf
- http://files.brochifarms.com/uploads/1/3/1/0/131070457/7208684.pdf
- http://files.cathpod.com/uploads/1/3/2/7/132741482/7672357.pdf
- http://files.thewanderingbays.com/uploads/1/3/1/4/131437249/kafuja.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdf
- https://cdn.shopify.com/s/files/1/0430/3182/2485/files/41393977583.pdf
- https://cdn.shopify.com/s/files/1/0432/5857/7064/files/35716127457.pdf
- https://cdn.shopify.com/s/files/1/0431/7098/8188/files/rofokuge.pdf
- https://cdn.shopify.com/s/files/1/0430/0704/9877/files/wixixudenuvibadosixota.pdf
- https://cdn.shopify.com/s/files/1/0436/2259/6768/files/76126387478.pdf
- https://cdn.shopify.com/s/files/1/0434/8549/5453/files/48675025346.pdf
- https://cdn.shopify.com/s/files/1/0430/8523/4338/files/21725644842.pdf
- https://cdn.shopify.com/s/files/1/0431/7832/8221/files/36873966576.pdf
- https://cdn.shopify.com/s/files/1/0439/3733/3406/files/92309458761.pdf
- https://cdn.shopify.com/s/files/1/0433/8827/2807/files/corel_painter_essentials_5.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004860.bin86a74e48d1ea12c1066f5c82f0589325dd66120997b6d1160ac7c73883d7f3cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4860 | 5496 bytes |
font_01_sfnt_off00005b24.bin253629ea993f58f1daac5372a79f48567aa75fc3646d2150ed7dc34bc080e7fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B24 | 10844 bytes |
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