MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to a link farm hosted on Shopify. One of these URLs, 'https://ttraff.ru/pify?keyword=class+javalaunchhelper+is+implemented+in+both', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this redirector URL and other Shopify-hosted PDFs, suggesting a coordinated effort to distribute malicious content. 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.ru/pify?keyword=class+javalaunchhelper+is+implemented+in+both
- http://files.katatheironthorn.com/uploads/1/3/0/7/130739746/garamunebunakup.pdf
- http://files.ccmomsandtots.org/uploads/1/3/0/7/130776118/7339700.pdf
- http://files.aquaplantcontrol.com/uploads/1/3/1/3/131381363/2772171.pdf
- https://cdn.shopify.com/s/files/1/0431/6381/2002/files/8409010873.pdf
- https://cdn.shopify.com/s/files/1/0434/3041/2450/files/libadesorob.pdf
- https://cdn.shopify.com/s/files/1/0432/9714/4990/files/13826774578.pdf
- https://cdn.shopify.com/s/files/1/0435/9120/5021/files/28256755911.pdf
- https://cdn.shopify.com/s/files/1/0441/0392/5912/files/wowijunotobasewerudodoje.pdf
- https://cdn.shopify.com/s/files/1/0429/5249/1159/files/mumopobisepebavolago.pdf
- https://cdn.shopify.com/s/files/1/0428/7738/6918/files/97737045228.pdf
- https://cdn.shopify.com/s/files/1/0429/7916/4314/files/92040757694.pdf
- https://cdn.shopify.com/s/files/1/0431/7508/4193/files/94362649472.pdf
- https://cdn.shopify.com/s/files/1/0428/9429/5203/files/mariners_probable_pitchers.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nexunalazuzifoginiwaboliz.pdf
- https://cdn.shopify.com/s/files/1/0436/9966/7099/files/kizalokadozifiji.pdf
- https://cdn.shopify.com/s/files/1/0430/4837/0333/files/bufitarif.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_off00004f0e.binbead2f8b5812e5d2c19bad08ae6b9a50cc65df82ae0cdb59d292a4fad3958a39 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F0E | 5492 bytes |
font_01_sfnt_off0000618d.bin1ca88c48850433c7c32154fb0d6a292a9326d3be3a2252f0b89f0edbf11329f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x618D | 9936 bytes |
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