MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or credential harvesting. The ML classifier strongly supports the malicious nature of this PDF.
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=thyroid+hormone+synthesis+and+secretion+pdf
- http://batatimu.lisananni.ca/uploads/1/3/1/1/131164250/8249781.pdf
- http://files.alpineanimalhospital.us/uploads/1/3/1/4/131408854/93807f4660.pdf
- https://cdn.shopify.com/s/files/1/0464/0522/2555/files/fajaxe.pdf
- https://cdn.shopify.com/s/files/1/0430/3588/5721/files/36260449072.pdf
- https://cdn.shopify.com/s/files/1/0433/8630/6710/files/kejomikosukidimaliwuvuz.pdf
- https://cdn.shopify.com/s/files/1/0429/7926/2615/files/gebutudaravolawotux.pdf
- https://cdn.shopify.com/s/files/1/0428/2089/4886/files/nipamitisagofupari.pdf
- https://cdn.shopify.com/s/files/1/0433/3905/5253/files/tezapusuruforu.pdf
- https://cdn.shopify.com/s/files/1/0427/7927/9527/files/vulazunowi.pdf
- https://cdn.shopify.com/s/files/1/0432/5353/0782/files/47579053393.pdf
- https://cdn.shopify.com/s/files/1/0438/5302/1344/files/history_of_ancient_egypt_download.pdf
- https://cdn.shopify.com/s/files/1/0433/7922/8837/files/kadav.pdf
- https://cdn.shopify.com/s/files/1/0428/0736/1703/files/xirix.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006426.bin27292bf18dfae7bb8091e509441e38161f6637547cd96fad78efd2e60d3de411 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6426 | 5204 bytes |
font_01_sfnt_off000075b2.bin3c0379247d1af93236a4e1c91f82f2460918302a2b37f8f619801ecfe686dbe8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75B2 | 9912 bytes |
font_02_sfnt_off00009791.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9791 | 4324 bytes |
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