MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=antonyms+3rd+grade+worksheet+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a worksheet, likely a lure. The presence of numerous other Shopify links, some confirmed benign and others unknown, indicates a link farm strategy. The ML classifier strongly flagged this PDF as malicious.
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=antonyms+3rd+grade+worksheet+pdf
- http://files.area51scooterclub.com/uploads/1/3/0/7/130740458/japezarurizojadonozu.pdf
- http://risulegel.cocrimeanalysis.org/uploads/1/3/2/3/132303035/tusuvifubokilesipi.pdf
- http://files.michigancourses.com/uploads/1/3/0/8/130814466/1771020.pdf
- https://cdn.shopify.com/s/files/1/0432/0237/9939/files/36759461393.pdf
- https://cdn.shopify.com/s/files/1/0438/2218/6656/files/bobrick_b_2111.pdf
- https://cdn.shopify.com/s/files/1/0439/4283/8427/files/whirlpool_parts_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/7826/2689/files/rogefugoniguwojapasepikop.pdf
- https://cdn.shopify.com/s/files/1/0431/7587/0613/files/tulumumaduzexogofepib.pdf
- https://cdn.shopify.com/s/files/1/0431/2950/3908/files/nuwizatura.pdf
- https://cdn.shopify.com/s/files/1/0437/8905/8206/files/dutimatojaparazetup.pdf
- https://cdn.shopify.com/s/files/1/0434/7982/6589/files/jusekikase.pdf
- https://cdn.shopify.com/s/files/1/0430/8893/7120/files/jofataradasusin.pdf
- https://cdn.shopify.com/s/files/1/0433/4629/6982/files/75519928920.pdf
- https://cdn.shopify.com/s/files/1/0427/8226/1415/files/20189204450.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_off00006388.bin59a7dbfeea75e0fc571dec16f5a211978c920047ed3e11ddf2d02115ff5e6de4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6388 | 5832 bytes |
font_01_sfnt_off00007757.binee69b81386ef8534494b0c8fd7e98196ff7f1b3fea4a9dab4735511ad7642516 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7757 | 10596 bytes |
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