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'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious redirector URL and a benign-looking URL, suggesting a lure to a malicious site. The ML classifier strongly supports the malicious verdict.
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=http+sistemas+conalep+edu+mx+10443+ws2+websae+alumno
- https://cdn.shopify.com/s/files/1/0428/9223/0823/files/libro_el_mundo_de_sofia.pdf
- https://cdn.shopify.com/s/files/1/0446/0707/8564/files/phylum_porifera_characteristics.pdf
- https://cdn.shopify.com/s/files/1/0460/2694/8767/files/excel_vba_worksheetfunction._average_range.pdf
- https://static.usrfiles.com/ugd/b8c837_4ba846b4025f45488450396b5fc21405.pdf
- https://static.usrfiles.com/ugd/b8c837_c62e202a32fb4ecc8e6e960da1c54b8a.pdf
- https://cdn.shopify.com/s/files/1/0429/5848/7715/files/catalogue_oriflame_11_2020.pdf
- https://cdn.shopify.com/s/files/1/0440/4543/5030/files/the_story_of_god_bible_commentary.pdf
- https://cdn.shopify.com/s/files/1/0432/8056/4392/files/xazasunavoleparofezedafes.pdf
- https://cdn.shopify.com/s/files/1/0435/7708/2019/files/80928874855.pdf
- https://cdn.shopify.com/s/files/1/0432/6470/4662/files/basketry_merit_badge_book.pdf
- https://cdn.shopify.com/s/files/1/0432/8531/5737/files/95673161702.pdf
- https://cdn.shopify.com/s/files/1/0432/7263/4533/files/69535193296.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_off00004495.bina162f5df358c867eba874684df40963f8509aa0996c73918fc42105e17e1b470 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4495 | 5960 bytes |
font_01_sfnt_off000058d6.bin2d92cfd1948c2104adc4141b6a3b6bb9e2a33083b90a6f3d0cb0f92dbfbb9790 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58D6 | 10320 bytes |
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