MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to Shopify domains hosting seemingly benign PDFs, but one critical link redirects through ttraff.ru, a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Allen medical test series pdf' and the malicious URL, suggesting a lure to disguise the malicious redirection. The presence of a malicious redirector link and the ML classifier's high confidence indicate a malicious intent to redirect the user to harmful content.
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=allen+medical+test+series+pdf
- http://files.sisuisintheheart.com/uploads/1/3/1/6/131636692/fapugotopudit.pdf
- https://cdn.shopify.com/s/files/1/0433/4741/1096/files/recirculating_aquaculture_systems_3rd_edition.pdf
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/valosukasifomed.pdf
- https://cdn.shopify.com/s/files/1/0436/1538/7811/files/16360098335.pdf
- https://cdn.shopify.com/s/files/1/0432/6408/2073/files/ncert_books_class_11_chemistry.pdf
- https://cdn.shopify.com/s/files/1/0439/1701/7256/files/70921014840.pdf
- https://cdn.shopify.com/s/files/1/0461/1332/5219/files/chess_pieces_king.pdf
- https://cdn.shopify.com/s/files/1/0429/6248/5407/files/nadikasavituvurem.pdf
- https://cdn.shopify.com/s/files/1/0431/6174/7605/files/tumenanomedurukeletukag.pdf
- https://cdn.shopify.com/s/files/1/0432/9753/8203/files/pojekatiseta.pdf
- https://cdn.shopify.com/s/files/1/0431/4356/1376/files/pigasowosapaboxajepifijo.pdf
- https://cdn.shopify.com/s/files/1/0438/4745/0774/files/convert_to_editable_word_android.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_off0000646b.binbb20db5605368ec452f0307620ca7ebfc7089ab64dabb17501106d3294e096a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x646B | 5288 bytes |
font_01_sfnt_off00007645.bin181960cc46fcf229e3e3984c5a4fe9f5905b04b934a19b6f4cf41f406aa3d52c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7645 | 15448 bytes |
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