MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Windows usb/dvd download tool' and the malicious URL. This suggests a social engineering attack aiming to trick users into visiting a malicious site. 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=windows+usb%252F+dvd+download+tool
- http://files.hk100-ultra.com/uploads/1/3/0/7/130738755/pilewem_bibudeditisazuj.pdf
- http://files.freesixsigmasite.com/uploads/1/3/1/1/131164236/d2f6b.pdf
- http://files.kathleenrupff.com/uploads/1/3/2/7/132740852/fbd3c2d16.pdf
- https://cdn.shopify.com/s/files/1/0435/2707/8042/files/tozejagu.pdf
- https://cdn.shopify.com/s/files/1/0430/9182/0695/files/senunexarorokazib.pdf
- https://cdn.shopify.com/s/files/1/0432/0264/2075/files/79413148114.pdf
- https://cdn.shopify.com/s/files/1/0437/1913/1285/files/46378765112.pdf
- https://cdn.shopify.com/s/files/1/0428/5431/8239/files/iphone_2g_price.pdf
- https://cdn.shopify.com/s/files/1/0434/4463/3756/files/kagerokegilutafepew.pdf
- https://cdn.shopify.com/s/files/1/0430/7465/0261/files/82041995635.pdf
- https://cdn.shopify.com/s/files/1/0430/8792/1313/files/tafekumodiwalinix.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6819160869.pdf
- https://cdn.shopify.com/s/files/1/0437/4354/3450/files/zasikepujozubuf.pdf
- https://cdn.shopify.com/s/files/1/0437/5035/9194/files/zuwivavozipi.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_off00006991.binf37c35e93773e8bfbd4010bab587d5552b66d1bcce51422d3107f7ce73e7ab50 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6991 | 5064 bytes |
font_01_sfnt_off00007afd.bineedbd5739e9f95517ba6c50d3bbb2d7c0cf1afb1e58174819a47976c9fc40ac3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AFD | 10128 bytes |
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