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=ejercicios+de+cicloalcanos+pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain this URL and other benign-looking Shopify URLs, suggesting a lure to a malicious site. 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=ejercicios+de+cicloalcanos+pdf
- http://files.sandykunze.com/uploads/1/3/2/6/132696249/699345.pdf
- http://kiwexo.capstonechiro.com/uploads/1/3/1/3/131380213/xunadujes.pdf
- http://files.chessnortherncape.com/uploads/1/3/0/8/130814172/2867987.pdf
- https://cdn.shopify.com/s/files/1/0431/5601/3205/files/93568708821.pdf
- https://cdn.shopify.com/s/files/1/0429/0586/2307/files/41786673819.pdf
- https://cdn.shopify.com/s/files/1/0429/6628/6490/files/fibakowatatunolapofeke.pdf
- https://cdn.shopify.com/s/files/1/0430/0134/8255/files/dekidijemuropigelamekanu.pdf
- https://cdn.shopify.com/s/files/1/0430/4519/1841/files/mafenisos.pdf
- https://cdn.shopify.com/s/files/1/0435/4077/5064/files/best_english_pronunciation_book.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdf
- https://cdn.shopify.com/s/files/1/0433/5638/9528/files/rekexu.pdf
- https://cdn.shopify.com/s/files/1/0431/2160/6820/files/fenux.pdf
- https://cdn.shopify.com/s/files/1/0433/0412/4580/files/69570448889.pdf
- https://cdn.shopify.com/s/files/1/0428/9472/1187/files/kogimuxodopuzimemo.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_off00005afe.binff3c54f16d83cf69c5efc891af00b5d1ab64788ff4c4a54da6e286ff2912bd04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AFE | 4892 bytes |
font_01_sfnt_off00006ba1.bin533da9c96022bbd5b84ce828cdda712c8c5ec6c27057b241200bda5294f4fab6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BA1 | 10708 bytes |
font_02_sfnt_off00008e59.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E59 | 4324 bytes |
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