MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a significant number of external links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru'. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the attack pattern.
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=bwv+1055+pdf
- http://files.myearlylearningbox.com/uploads/1/3/0/7/130775633/zepetakugemuki.pdf
- http://files.shallyns.com/uploads/1/3/0/8/130874566/moroverumisiv_xasalib_lipegimunugika.pdf
- http://files.employmentcollaborative.com/uploads/1/3/1/4/131482886/todilupinodituso.pdf
- https://cdn.shopify.com/s/files/1/0432/6375/4404/files/how_to_open_a_file_in_python.pdf
- https://cdn.shopify.com/s/files/1/0437/8509/3281/files/school_subjects_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0428/5110/6972/files/15755423935.pdf
- https://cdn.shopify.com/s/files/1/0432/6516/3422/files/40956838618.pdf
- https://cdn.shopify.com/s/files/1/0439/8697/6926/files/19600595065.pdf
- https://cdn.shopify.com/s/files/1/0432/9439/2485/files/suzuki_budismo_zen.pdf
- https://cdn.shopify.com/s/files/1/0441/3816/8472/files/91626207090.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_off000070d8.bin5c1221b0b81c8d355212d0402353aefd0f43e2aea8b55db052a7c5c057dd2169 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70D8 | 4364 bytes |
font_01_sfnt_off00007fc6.bin3e16e4bfb42739ec4a1c1b673ee344be4da7d4f004b61fa8a8058d78f8847ee9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FC6 | 10412 bytes |
font_02_sfnt_off0000a369.binff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA369 | 4324 bytes |
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