MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF contains a link farm with 28 external links, many pointing to Shopify domains, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/wix?keyword=htc+transfer+tool+app+download, suggesting a lure to download a tool. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves redirecting the user to malicious infrastructure.
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/wix?keyword=htc+transfer+tool+app+download
- https://cdn.shopify.com/s/files/1/0431/7508/4193/files/murawuboxetodasuruko.pdf
- https://cdn.shopify.com/s/files/1/0430/7930/3317/files/48566970885.pdf
- https://cdn.shopify.com/s/files/1/0439/0351/6824/files/24399153691.pdf
- https://cdn.shopify.com/s/files/1/0433/7316/6744/files/32125926793.pdf
- https://static.usrfiles.com/ugd/b8c837_c4bfd0b827d545d797ce4ef1fe9a5f79.pdf
- https://static.usrfiles.com/ugd/b8c837_e4456692c60a4055b451d3fd7c638e29.pdf
- https://static.usrfiles.com/ugd/b8c837_f9124f90f6034dd4aec986db908241aa.pdf
- https://static.usrfiles.com/ugd/b8c837_2d090cf5ff684c9f8715033bf474e2a0.pdf
- https://cdn.shopify.com/s/files/1/0454/8503/1576/files/nesuninixemi.pdf
- https://cdn.shopify.com/s/files/1/0460/1954/3199/files/cdc_life_expectancy_report_2018.pdf
- https://cdn.shopify.com/s/files/1/0432/2423/6199/files/pijowasamusowezonatunuk.pdf
- https://static.usrfiles.com/ugd/b8c837_a341ba4002a24a2db20cc92eff796463.pdf
- https://static.usrfiles.com/ugd/b8c837_1ba6f293d1184fe194d318559ee0b62d.pdf
- https://static.usrfiles.com/ugd/b8c837_b111bcfe82c842a28e11f9337c50e9df.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_off00005903.bin356e6a824f10a3380e5b94d4d11c31db083b2581858876fe81f20269aa1c8342 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5903 | 5200 bytes |
font_01_sfnt_off00006ac6.binf2728a5f7d9b6f5f04527525871bf1dc14434c4ae7b272a39569a8a678c83fac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AC6 | 9980 bytes |
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