MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/pify?keyword=3d+animator+app+for+android, which is identified as a malicious redirector. The presence of a large number of external links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites.
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=3d+animator+app+for+android
- http://files.clevelandpianoteachers.org/uploads/1/3/1/3/131381681/6770822.pdf
- http://watezako.freedomtoreadinc.org/uploads/1/3/1/4/131452884/400756cc.pdf
- http://fubevo.fromnicolawithlove.com/uploads/1/3/1/3/131380213/fodawidi_lowev_pasar_fixepeburemi.pdf
- https://cdn.shopify.com/s/files/1/0438/4774/5698/files/46136381479.pdf
- https://cdn.shopify.com/s/files/1/0435/6335/2227/files/zevuvepatuburirasedomek.pdf
- https://cdn.shopify.com/s/files/1/0436/3105/0915/files/npc_id_list_wow_bfa.pdf
- https://cdn.shopify.com/s/files/1/0436/3295/1446/files/45490475148.pdf
- https://cdn.shopify.com/s/files/1/0452/5981/7122/files/23677561190.pdf
- https://cdn.shopify.com/s/files/1/0436/9675/0742/files/xosar.pdf
- https://cdn.shopify.com/s/files/1/0431/5840/5275/files/simubit.pdf
- https://cdn.shopify.com/s/files/1/0431/6237/0210/files/68433701492.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92399027362.pdf
- https://cdn.shopify.com/s/files/1/0434/7687/7478/files/philadelphia_union_schedule.pdf
- https://cdn.shopify.com/s/files/1/0429/9125/5713/files/vigepedam.pdf
- https://cdn.shopify.com/s/files/1/0432/2839/7732/files/charlotte_bronte_books.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_off000063cc.binebf021db451d50d5e614c05acef63a800998c35b92e63112c036c0b1f7a73ff4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63CC | 5048 bytes |
font_01_sfnt_off000074d9.bind64aa9a41c8adb2b000a60dd9a35af8e001194e9fa9f9bb8f92ed7f8d0c5dd4b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74D9 | 9764 bytes |
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