MALICIOUS
154
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.ru, which is disguised as a search result for 'uc browser for iphone 4'. This suggests a phishing or scam attempt. The PDF also hosts a link farm of other PDFs on Shopify, likely for SEO manipulation to improve the ranking of the malicious redirector. The ML classifier 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.ru/pify?keyword=uc+browser+for+iphone+4
- http://files.hollywaightdesigns.com/uploads/1/3/0/9/130969703/fbda584e105d.pdf
- http://files.leascorner.net/uploads/1/3/1/4/131406544/nidaleroma.pdf
- https://cdn.shopify.com/s/files/1/0437/2289/9608/files/83528205197.pdf
- https://cdn.shopify.com/s/files/1/0431/1118/6588/files/58742277504.pdf
- https://cdn.shopify.com/s/files/1/0432/6549/1107/files/stardew_valley_lucky_lunch.pdf
- https://cdn.shopify.com/s/files/1/0437/7971/9317/files/zirobobuba.pdf
- https://cdn.shopify.com/s/files/1/0432/5313/7576/files/12v_buzzer_datasheet.pdf
- https://cdn.shopify.com/s/files/1/0429/0743/5167/files/xisamutopogoluvof.pdf
- https://cdn.shopify.com/s/files/1/0428/3016/8230/files/javelenalesinetiwodov.pdf
- https://cdn.shopify.com/s/files/1/0427/7947/6134/files/twin_xl_platform_bed_diy.pdf
- https://cdn.shopify.com/s/files/1/0465/4917/2382/files/4663905000.pdf
- https://cdn.shopify.com/s/files/1/0435/1423/2984/files/tufonuxarirefigerakivisir.pdf
- https://cdn.shopify.com/s/files/1/0448/0316/2263/files/36976862217.pdf
- https://cdn.shopify.com/s/files/1/0431/5637/3659/files/75130916727.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008d29.bin0d48357c4f467b7e9f609f40e6f784ad2bb244b7d46c6cb6fea88601545986cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D29 | 5172 bytes |
font_01_sfnt_off00009ecc.bin660eb812a2956e8458a90856ed4113cc41c7ca389fefe1ca912f50c16971b9c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9ECC | 10412 bytes |
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