MALICIOUS
152
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.cc, which is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains the same URL and appears to be generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. The presence of numerous other PDF links suggests a link farm or SEO poisoning attempt to increase visibility.
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.cc/wix?keyword=aap+hypertension+guidelines
- https://static.usrfiles.com/ugd/b8c837_dcb5058c29704033828765542c911985.pdf
- https://static.usrfiles.com/ugd/6924eb_bc527196f62f433f85bb8932c9b72fc9.pdf
- https://static.usrfiles.com/ugd/913720_5a5e335a95864d0a9b476ccb25f76090.pdf
- https://static.usrfiles.com/ugd/576447_8ce699c518644ee29d51f4a88042bfdc.pdf
- https://static.usrfiles.com/ugd/b8c837_51bddcf388c84e22a194f1c8fe00d4a5.pdf
- https://static.usrfiles.com/ugd/5fd5c1_dcc17236edf54c318fe2d5beffae4605.pdf
- https://cdn.shopify.com/s/files/1/0428/8797/0975/files/darumutobovile.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdf
- https://cdn.shopify.com/s/files/1/0430/1121/1425/files/numusafezoxesuvexajib.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11383010616.pdf
- https://cdn.shopify.com/s/files/1/0440/6162/2437/files/present_perfect_tense_exercises_multiple_choice.pdf
- https://cdn.shopify.com/s/files/1/0430/0357/6481/files/25734424431.pdf
- https://cdn.shopify.com/s/files/1/0433/8014/6339/files/dakokesomojepunor.pdf
- https://cdn.shopify.com/s/files/1/0433/0278/1083/files/8610900629.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_off00007143.bin9e706d996e3f88c46b5742e0669959298862a09c884a5825203ed8c30c0ea051 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7143 | 5312 bytes |
font_01_sfnt_off00008356.bin76f835eb8afc249276e3fd5d00997c5de88c420332d62af72b2c775bc5bfff83 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8356 | 11556 bytes |
font_02_sfnt_off0000a8f1.binaca9d55988c6676475e3b08f81553e0332b16fe059812fe008bdba06dc22cfc1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8F1 | 16316 bytes |
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