MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains the text 'Business writing pdf free download' and the malicious URL, suggesting a lure for users seeking free content. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.
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=business+writing+pdf+free+download
- http://files.selectroses.com/uploads/1/3/0/7/130739456/ec2b6.pdf
- http://files.govmation.net/uploads/1/3/0/8/130814056/kaxir_sejuvipu_titokixozumip_pewovuleremu.pdf
- http://files.orlandohomeinspectionservices.com/uploads/1/3/1/4/131437937/farupajamamonababu.pdf
- https://cdn.shopify.com/s/files/1/0431/6105/9482/files/zoditituroxule.pdf
- https://cdn.shopify.com/s/files/1/0434/6406/5174/files/sujef.pdf
- https://cdn.shopify.com/s/files/1/0431/2875/0234/files/gimon.pdf
- https://cdn.shopify.com/s/files/1/0431/8819/1394/files/niviligodogogateraw.pdf
- https://cdn.shopify.com/s/files/1/0432/4920/5405/files/51475090405.pdf
- https://cdn.shopify.com/s/files/1/0437/6032/0663/files/tovuguvemarapeduja.pdf
- https://cdn.shopify.com/s/files/1/0430/9286/9281/files/20741467607.pdf
- https://cdn.shopify.com/s/files/1/0430/8572/5850/files/dario_fo_accidental_death_of_an_anarchist.pdf
- https://cdn.shopify.com/s/files/1/0436/9242/5384/files/tifewux.pdf
- https://cdn.shopify.com/s/files/1/0440/7354/9974/files/85473147327.pdf
- https://cdn.shopify.com/s/files/1/0432/2626/7806/files/38940964170.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_off0000788c.binbf0c1b2c29eb9e76061a9db21c619f363ff7ded50d20994ee4e593588e9e79a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x788C | 5232 bytes |
font_01_sfnt_off00008a76.bin70b1dfc82544033bff1ab22f3e046eb7e268bc53418c858f3bf04d90b96fece0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A76 | 10348 bytes |
font_02_sfnt_off0000adce.bin05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADCE | 4324 bytes |
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