MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to malicious content. The document body, though heavily obfuscated, contains the same URL. The presence of a large number of external PDF links, many pointing to static.usrfiles.com, suggests a link farm or SEO poisoning attempt to drive traffic to the malicious redirector. The ML classifier also strongly indicated maliciousness.
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=conan+exiles+smelter+thrall
- https://static.usrfiles.com/ugd/76156b_7688c5a35c734ee5bd30bf50218ee41a.pdf
- https://static.usrfiles.com/ugd/6d59ab_6b2e0230c6c4424a80b45c4cafc59162.pdf
- https://static.usrfiles.com/ugd/b8c837_0a6276d66f8341b9a030b75f3b7c5ef1.pdf
- https://static.usrfiles.com/ugd/067ecb_ad9d9718555d4eb7afeba181fa2b1e11.pdf
- https://static.usrfiles.com/ugd/067ecb_bfd95cfa28cc4921b64b5c4de33ef123.pdf
- https://static.usrfiles.com/ugd/fa6f14_f4f01d38e58e48c0812fe685fb5d961d.pdf
- https://static.usrfiles.com/ugd/b8c837_4c38232bcb744ef8919d9fbf7e0ddbee.pdf
- https://static.usrfiles.com/ugd/b8c837_012eaa64d26d44bcacde788e94d234b1.pdf
- https://static.usrfiles.com/ugd/b8c837_facd8f0f98a144e2b13d908f4d4011ff.pdf
- https://cdn.shopify.com/s/files/1/0461/4186/6137/files/pandora_media_annual_report.pdf
- https://cdn.shopify.com/s/files/1/0434/1760/0152/files/towabawasapaxelibetasul.pdf
- https://cdn.shopify.com/s/files/1/0440/1473/1429/files/beautiful_flowers_hd_pics.pdf
- https://cdn.shopify.com/s/files/1/0429/2355/7030/files/lowemebasidakubemef.pdf
- https://cdn.shopify.com/s/files/1/0436/1139/0115/files/kekade.pdf
- https://cdn.shopify.com/s/files/1/0457/0349/5836/files/bellavista_ventilator_user_manual.pdf
- https://cdn.shopify.com/s/files/1/0427/6980/9564/files/ginudareweduvolewu.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_off00008226.bin5e5c3ec1beaef1567e10a471776a6f1d1fbd619ec0abe61b1c51344b7af3c2be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8226 | 4900 bytes |
font_01_sfnt_off0000929c.bin175fe62f0ea5342cc02421ab0d6c690b2d3d44f2bdb55ce63f3e6c4f9c9af669 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x929C | 15888 bytes |
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