MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=capsule+filling+machine+principle+pdf`. This URL is designed to lure users into clicking by pretending to offer a PDF related to 'capsule filling machine principle'. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains, likely to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.
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=capsule+filling+machine+principle+pdf
- http://files.northwaystudents.com/uploads/1/3/1/8/131871701/6b9b2bec.pdf
- http://files.socialvalueworld.com/uploads/1/3/0/7/130739715/gexozo-xemevuf.pdf
- http://files.simplelifebrewing.com/uploads/1/3/2/6/132681501/xizatimela.pdf
- https://cdn.shopify.com/s/files/1/0431/5847/0810/files/zupufu.pdf
- https://cdn.shopify.com/s/files/1/0428/3082/3583/files/7232579208.pdf
- https://cdn.shopify.com/s/files/1/0431/8914/1664/files/acst_aakash_sample_paper_2020.pdf
- https://cdn.shopify.com/s/files/1/0437/7778/6018/files/losivorosek.pdf
- https://cdn.shopify.com/s/files/1/0432/8708/5220/files/favip.pdf
- https://cdn.shopify.com/s/files/1/0439/1839/3499/files/26250693449.pdf
- https://cdn.shopify.com/s/files/1/0435/9415/4146/files/darrins_dance_groves.pdf
- https://cdn.shopify.com/s/files/1/0437/6254/8887/files/98443943376.pdf
- https://cdn.shopify.com/s/files/1/0428/2862/8124/files/minejosojafokumov.pdf
- https://cdn.shopify.com/s/files/1/0431/8547/1656/files/pewusefunore.pdf
- https://cdn.shopify.com/s/files/1/0429/5445/7254/files/98982679992.pdf
- https://cdn.shopify.com/s/files/1/0433/7077/4693/files/gurezobitejeseb.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_off00005f20.bin74bc60bba777267f463adb23f28ebd72dc65738b5730dd6fd634d676f0f65643 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F20 | 5476 bytes |
font_01_sfnt_off0000718f.bin9caba59ab1293382c4a9ab42cdd0890ef40878164597e04c1f6a3f5c9bbb4e1b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x718F | 10208 bytes |
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