MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was identified as malicious due to the presence of numerous embedded links, a technique often used in SEO link farms to artificially boost search engine rankings or distribute malicious content. One of the embedded URLs, 'https://ttraff.com/wix?keyword=bayes+information+criterion%2528+bic%2529', is flagged as a known malicious redirector. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not intended for direct user consumption but rather as a vehicle for the malicious links.
Heuristics 3
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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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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.com/wix?keyword=bayes+information+criterion%2528+bic%2529
- https://static.usrfiles.com/ugd/98e298_6f1d94385a7c4f7193ae7e169686a397.pdf
- https://static.usrfiles.com/ugd/05900a_d7e2ea1b565043498db8d0fbf6d7d204.pdf
- https://static.usrfiles.com/ugd/9e41f0_4d34cdccab0342198cc864b5c46196cb.pdf
- https://static.usrfiles.com/ugd/dd6616_4c097e00ea5c4efa868bd9ae06ed87ea.pdf
- https://static.usrfiles.com/ugd/696b8a_a149a41a892d45b5a8b3ff53de1cea5e.pdf
- https://cdn.shopify.com/s/files/1/0432/7456/7843/files/intel_r_ich9m_lpc_interface_control.pdf
- https://cdn.shopify.com/s/files/1/0434/8795/3053/files/julobowosefapuvebemo.pdf
- https://cdn.shopify.com/s/files/1/0432/7754/9726/files/rurotafedetorizodej.pdf
- https://cdn.shopify.com/s/files/1/0430/3293/6605/files/wovoxijeleguvot.pdf
- https://cdn.shopify.com/s/files/1/0433/6893/9672/files/east_vs_west_names.pdf
- https://cdn.shopify.com/s/files/1/0438/2566/0066/files/62530511066.pdf
- https://cdn.shopify.com/s/files/1/0436/6788/2134/files/nolivogidukagag.pdf
- https://static.usrfiles.com/ugd/d94ae5_62a2de5f9a6f4c098c354d56802551e1.pdf
- https://static.usrfiles.com/ugd/ce77c6_6dd7bb0d5303408f8bb924329d4331fd.pdf
- https://static.usrfiles.com/ugd/b8c837_dde70369469c45649912935e0d5e8786.pdf
- https://static.usrfiles.com/ugd/ab922d_6696a694f15147f29c1d8d728a36e995.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_off00006dc6.bin134dade10209d24115870e38d9457d4fdfa3eade4eef3200b3acff1e3eb7c0ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DC6 | 5440 bytes |
font_01_sfnt_off0000804f.bin245c651c9b2d59ec5d907fe88f9bb8c1c9203c53d8f3a4d24456629703091e0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x804F | 15216 bytes |
font_02_sfnt_off0000b058.bin53e5d393b851d720594948fbf7dd9078aedfde0ca88976963c05eeb4d0c0a486 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB058 | 16308 bytes |
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