MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify, likely to obscure the malicious redirector. The ML classifier strongly supports the malicious nature of this PDF.
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=bogleheads+guide+to+retirement+planning+pdf
- http://files.adultlearningarch.com/uploads/1/3/1/3/131380138/02a00372e7.pdf
- http://files.peterpactor.net/uploads/1/3/0/8/130813934/vevozovezej.pdf
- http://files.qualityelement.com/uploads/1/3/2/7/132740182/1917758.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdf
- https://cdn.shopify.com/s/files/1/0432/7338/8190/files/78210745532.pdf
- https://cdn.shopify.com/s/files/1/0429/9603/9833/files/saxesuwe.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9489/files/ditemidoxotamusewogo.pdf
- https://cdn.shopify.com/s/files/1/0431/7003/7924/files/php_truncate_string.pdf
- https://cdn.shopify.com/s/files/1/0435/9415/4146/files/gta_v_trophies_guide.pdf
- https://cdn.shopify.com/s/files/1/0432/7335/5424/files/75651073836.pdf
- https://cdn.shopify.com/s/files/1/0435/2871/6439/files/binapobosemo.pdf
- https://cdn.shopify.com/s/files/1/0436/1984/4258/files/moworat.pdf
- https://cdn.shopify.com/s/files/1/0454/5308/2782/files/applications_of_queueing_theory_newell.pdf
- https://cdn.shopify.com/s/files/1/0429/3450/1535/files/moladulugusinogu.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_off00006bee.bin2504ec875ca32f5f5287e58d51e39c6bfceafb6fe648c23745cbf5acdc523477 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BEE | 5504 bytes |
font_01_sfnt_off00007e7f.bincc8ab464a8bf139a1dd5fa132ead37019f6689b3a836ffc70797224c8d9f3cd2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E7F | 10616 bytes |
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