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 a PDF link farm pattern, with numerous links hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The embedded URL within the document body, 'https://ttraff.ru/pify?keyword=cantilever+bridge+pdf', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.
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=cantilever+bridge+pdf
- http://zakowomo.purplerun.net/uploads/1/3/1/0/131070786/dunovumibizamem.pdf
- https://cdn.shopify.com/s/files/1/0432/5795/4467/files/sheetrock_all_purpose_joint_compound_ingredients.pdf
- https://cdn.shopify.com/s/files/1/0434/4014/4534/files/1031048500.pdf
- https://cdn.shopify.com/s/files/1/0440/4278/0837/files/lista_de_alimentos_para_diabeticos.pdf
- https://cdn.shopify.com/s/files/1/0434/1065/3338/files/vupekiwolemaxubufowu.pdf
- https://cdn.shopify.com/s/files/1/0434/4902/4679/files/bg_country_code.pdf
- https://cdn.shopify.com/s/files/1/0431/3861/3415/files/87033325661.pdf
- https://cdn.shopify.com/s/files/1/0439/1161/0536/files/36557541451.pdf
- https://cdn.shopify.com/s/files/1/0428/5913/5132/files/dobumofe.pdf
- https://cdn.shopify.com/s/files/1/0437/2529/1671/files/wobedexozututuxakumabiwu.pdf
- https://cdn.shopify.com/s/files/1/0440/3278/6597/files/ffmpeg_remove_duplicate_frames.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_off0000c31c.bin1818fbb45bf845f19a4e53a54278f24970a35a63f54ff92bbec56677012ce727 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC31C | 4932 bytes |
font_01_sfnt_off0000d3f2.bin2f01d3d484f6012625c22a82e0cdc821f072d0961217aa18cdda78881f4ed70b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3F2 | 10052 bytes |
font_02_sfnt_off0000f618.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF618 | 4324 bytes |
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