MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.ru/pify?keyword=1st+grade+math+worksheets+counting+on, which is known to host malicious content. The document body, though heavily obfuscated, contains references to this URL and other benign-looking PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly supports the malicious verdict.
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=1st+grade+math+worksheets+counting+on
- http://files.diana-oasis.com/uploads/1/3/0/8/130813639/6408387.pdf
- http://dizorutu.swpay.uk/uploads/1/3/0/7/130775897/todalowelerame-fusidik-lijinanibib.pdf
- http://safutarol.callihanscache.org/uploads/1/3/0/8/130814328/900dd52.pdf
- http://files.heywoodracing.com/uploads/1/3/0/7/130775363/gakipazukaka_mesebepu_xiwapisisitug.pdf
- https://cdn.shopify.com/s/files/1/0437/8735/4270/files/codex_basiliensis.pdf
- https://cdn.shopify.com/s/files/1/0429/1179/3315/files/4471240391.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80884551140.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51098187394.pdf
- https://cdn.shopify.com/s/files/1/0433/6304/1430/files/automatic_stirrup_bending_machine.pdf
- https://cdn.shopify.com/s/files/1/0434/2149/9548/files/botilesilixarulaniparawoj.pdf
- https://cdn.shopify.com/s/files/1/0433/6635/0998/files/bupeki.pdf
- https://cdn.shopify.com/s/files/1/0448/1892/3686/files/poxazisatojojow.pdf
- https://cdn.shopify.com/s/files/1/0437/1474/0375/files/windows_api_documentation.pdf
- https://cdn.shopify.com/s/files/1/0431/9186/1410/files/degogutobaxodojodezovu.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_off0000478a.bin06fa2b2526fa5ecad8fd1baca12bc8313f2af137b36027af32e5f547057d11d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x478A | 5436 bytes |
font_01_sfnt_off000059f2.bin2597820d01dcfbcfe63d6fca49b17ce83795c5cf6f38b9350bb20a7dca8442d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59F2 | 9676 bytes |
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