MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL and numerous benign-looking shopify URLs, suggesting a link farm or SEO manipulation tactic to disguise malicious intent. The primary attack pattern involves directing users to potentially harmful external sites.
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.cc/pify?keyword=brodsky+utkin+pdf
- http://files.stellasaintboutique.com/uploads/1/3/1/4/131452735/9f4bcaadf9ba4.pdf
- http://files.5earts.com/uploads/1/3/0/7/130739037/teputilib.pdf
- http://files.terryvillefairhorseshow.com/uploads/1/3/1/4/131453221/lififojozabep.pdf
- http://files.tankuanaw.com/uploads/1/3/1/3/131379612/eda4253071.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/1792/0934/files/25980576257.pdf
- https://cdn.shopify.com/s/files/1/0430/5040/1943/files/91084119978.pdf
- https://cdn.shopify.com/s/files/1/0437/2326/0058/files/arches_national_park_trail_map.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdf
- https://cdn.shopify.com/s/files/1/0430/7678/0192/files/sikafuteg.pdf
- https://cdn.shopify.com/s/files/1/0452/5775/2733/files/atlas_d_arboriculture_fruitire.pdf
- https://cdn.shopify.com/s/files/1/0432/6853/8521/files/kinubadobesikajujexamivul.pdf
- https://cdn.shopify.com/s/files/1/0428/2515/4716/files/11016286343.pdf
- https://cdn.shopify.com/s/files/1/0434/0262/5178/files/vesajodalanov.pdf
- https://cdn.shopify.com/s/files/1/0428/2328/6940/files/66136176393.pdf
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/puladibajoxifenelojaxures.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_off00007185.binc95a757d81eff88a443f7b55b2124c41da58c43c74480360d8caaa8f8beccade |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7185 | 5008 bytes |
font_01_sfnt_off000082b3.bin0f850035bf36fd07a6feb8281e1931d5e8fef44fbf3f34eaca53b5318d9c2ed1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82B3 | 10244 bytes |
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