MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is also present in the document body. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains hosting other PDFs. The ML classifier strongly indicated maliciousness. The primary attack vector appears to be a lure using a fake academic journal template to redirect users to a malicious site.
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=international+journal+of+electronics+letters+template
- http://files.sandifie.com/uploads/1/3/1/4/131408581/1996195.pdf
- http://gijumasi.nickoftimefilms.com/uploads/1/3/1/4/131407921/pixekurekata_wafosetamifaj.pdf
- https://cdn.shopify.com/s/files/1/0431/3228/9178/files/1058898705.pdf
- https://cdn.shopify.com/s/files/1/0440/1915/5109/files/26547768630.pdf
- https://cdn.shopify.com/s/files/1/0434/6268/8918/files/zujusigosejalomizawubom.pdf
- https://cdn.shopify.com/s/files/1/0438/9502/9915/files/benafapimegosex.pdf
- https://cdn.shopify.com/s/files/1/0431/0718/8898/files/tratamiento_absceso_hepatico_piogeno.pdf
- https://cdn.shopify.com/s/files/1/0432/7519/0430/files/payroll_system_thesis.pdf
- https://cdn.shopify.com/s/files/1/0432/6031/3768/files/45824941569.pdf
- https://cdn.shopify.com/s/files/1/0429/4069/4684/files/kitavudozeb.pdf
- https://cdn.shopify.com/s/files/1/0434/1966/4541/files/zabusokaluveros.pdf
- https://cdn.shopify.com/s/files/1/0431/9156/6493/files/treasures_grammar_practice_book_grade_1.pdf
- https://cdn.shopify.com/s/files/1/0429/2821/0073/files/mepefavoxupuwudowu.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_off0000db40.bin3f85ed2a13f39f72b70ecbc66e1b3cebc6ede5fb8f87b32635c9f8b484e3b4e5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB40 | 5172 bytes |
font_01_sfnt_off0000ecc2.bin8ac12d1a7986055cf4709dd814ffd40437baf17c17fc79b89cdecea53b0b4131 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC2 | 10932 bytes |
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