MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=sentence+combining%252F+sentence+variety+worksheet+answers'. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify domains, suggesting a link farm or redirection strategy. The ML classifier also strongly indicated maliciousness.
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=sentence+combining%252F+sentence+variety+worksheet+answers
- https://cdn.shopify.com/s/files/1/0431/3353/4357/files/adobe_photoshop_lightroom_tutorials_free_download.pdf
- https://cdn.shopify.com/s/files/1/0431/1855/9393/files/gurejavuwaledenexasove.pdf
- https://cdn.shopify.com/s/files/1/0432/2990/5058/files/phylum_arthropoda_caracteristicas.pdf
- https://cdn.shopify.com/s/files/1/0437/5596/2522/files/majazanobotosutobogibi.pdf
- https://cdn.shopify.com/s/files/1/0427/8855/2870/files/ethiopian_grade_11_english_textbook_download.pdf
- https://static.usrfiles.com/ugd/f967ac_7d1c37eba9ae4572b6793b713ccd9832.pdf
- https://static.usrfiles.com/ugd/5e8de6_96542f0f3b774a4b9371bd20c772d639.pdf
- https://cdn.shopify.com/s/files/1/0430/8720/0418/files/cg_police_si_admit_card_2018.pdf
- https://cdn.shopify.com/s/files/1/0436/6571/9449/files/reality_therapy_exercises.pdf
- https://cdn.shopify.com/s/files/1/0431/9769/4109/files/33566187092.pdf
- https://cdn.shopify.com/s/files/1/0431/6492/6111/files/poweroll_by_top-o-matic_troubleshooting.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9870/files/79825393751.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000085e7.bin130b748ad058bd18c4d0ad58720dfe673e74377946a965d700743d016f6f409e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85E7 | 5564 bytes |
font_01_sfnt_off000098c0.bindff3971dffc9ef7c5e4b7a2e11863857c3abb75a45eb82bde6c0b481ff0a16c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98C0 | 10396 bytes |
font_02_sfnt_off0000bbc3.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBC3 | 4324 bytes |
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