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 it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/wix?keyword=download+css+textures', which is flagged as malicious. The presence of numerous links, including those pointing to 'usrfiles.com' and 'cdn.shopify.com', suggests an attempt to leverage SEO poisoning or a link farm to distribute malicious content or conduct phishing.
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/wix?keyword=download+css+textures
- https://static.usrfiles.com/ugd/ab922d_222f6ec30e2e48d6a104a12cd5fe3437.pdf
- https://static.usrfiles.com/ugd/1f5cef_8bb062c279aa4f8e98c6075f33214ae9.pdf
- https://static.usrfiles.com/ugd/b8c837_57c7de3b0d364c1fbf8deb0b00ac6e9d.pdf
- https://static.usrfiles.com/ugd/b8c837_1e4bed22c1a0488991a42ebdb51a9f38.pdf
- https://cdn.shopify.com/s/files/1/0427/6961/2966/files/manuale_uso_e_manutenzione_audi_a4_avant_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/6753/0657/files/loleniwitiz.pdf
- https://cdn.shopify.com/s/files/1/0463/5050/0002/files/84717814368.pdf
- https://cdn.shopify.com/s/files/1/0431/9094/3904/files/34440087826.pdf
- https://cdn.shopify.com/s/files/1/0429/7208/6423/files/28869823751.pdf
- https://cdn.shopify.com/s/files/1/0437/6661/2130/files/adosphere_3_test.pdf
- https://cdn.shopify.com/s/files/1/0428/2613/7756/files/assignment_abroad_times_today_free.pdf
- https://cdn.shopify.com/s/files/1/0432/7777/9100/files/arduino_for_ubuntu_18._04.pdf
- https://cdn.shopify.com/s/files/1/0429/0379/7913/files/tejujiwebaxim.pdf
- https://cdn.shopify.com/s/files/1/0436/6375/3369/files/adding_and_subtracting_fractions_lesson_plan.pdf
- https://cdn.shopify.com/s/files/1/0435/6987/3054/files/third_party_app_store_android_tv.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_off0000a343.bin53571debd66b3e2afaff280d9cecbbda309819f661ce2d327e33fa836835d9ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA343 | 5092 bytes |
font_01_sfnt_off0000b4b1.bin0772e705fefe855b6e496944acf1586790583176b019e80951a8d57d54472409 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4B1 | 10380 bytes |
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