MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
T1059.007 JavaScript
The PDF contains numerous embedded links, with a primary redirector pointing to 'https://ttraff.ru/wb?keyword=adobe%20acrobat%20pdf%20app%20download'. This URL, along with the heuristic 'SE_BROWSER_INSTALL_LURE', indicates a social engineering attempt to trick the user into installing malicious software or divulging credentials by masquerading as a legitimate download. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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/wb?keyword=adobe%20acrobat%20pdf%20app%20download In PDF document text
- http://files.dragonfirestore.net/uploads/1/3/0/7/130739253/826469.pdfIn PDF document text
- http://files.realvalueinvestments.net/uploads/1/3/2/6/132681201/3949e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0119/2352/files/anamorphic_illusions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8277/6727/files/81378900658.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9164/6880/files/woboganinumakeraja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8082/7558/files/35258702862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5864/1561/files/17917472648.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7284/0090/files/gipumilasaboxirutezuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7300/2902/files/62220281402.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3812/9823/files/tobomovojaxakatojirujit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7997/5591/files/volulotof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/3943/6449/files/tozenuvuxibinefiba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2353/8088/files/lojuwofiwasokuxoxupixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9394/0629/files/cbse_answer_sheet_format.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7311/9143/files/68665046960.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3894/6981/files/horn_of_the_brown_wolf.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005cf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CF7 | 5192 bytes |
SHA-256: 63d557eb129761e2306d4a9f13945bf47714217535fd820856ad1c7a6ed6cbfd |
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font_01_sfnt_off00006ebf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EBF | 10392 bytes |
SHA-256: 471d3c357e351962a798f2258e517abc59ce23e9546fe8ed7b7363ed0f2a51bd |
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