MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=dj+music+maker+app'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of external PDF links, many of which point to 'static.usrfiles.com', suggesting a link farm or SEO poisoning attempt to drive traffic to the malicious redirector. The ML classifier also 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.cc/pify?keyword=dj+music+maker+app
- https://static.usrfiles.com/ugd/b8c837_ae03b30485084813961b24a2ed935480.pdf
- https://static.usrfiles.com/ugd/b8c837_c0490332ced44525988ae3e4ed2cb481.pdf
- https://static.usrfiles.com/ugd/b8c837_cafbaa95d8724e1cbb564a3883c79c92.pdf
- https://static.usrfiles.com/ugd/b8c837_575eeb01167d49938156ad861ba7b5be.pdf
- https://static.usrfiles.com/ugd/b8c837_aa28568802844c82bf3acaf25de470f5.pdf
- https://static.usrfiles.com/ugd/b8c837_3c183f253f8f4238940474038910a9e3.pdf
- https://static.usrfiles.com/ugd/4cf28d_17c9955c2f4044ac8d89693da1ede13f.pdf
- https://static.usrfiles.com/ugd/e3ff21_88e86d098bd0428c8128308a09415e71.pdf
- https://cdn.shopify.com/s/files/1/0430/2857/8467/files/business_management_skills_notes.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/14824576689.pdf
- https://cdn.shopify.com/s/files/1/0461/9373/7886/files/71282214843.pdf
- https://cdn.shopify.com/s/files/1/0431/6535/2097/files/zenedejajej.pdf
- https://cdn.shopify.com/s/files/1/0431/1053/1238/files/61953029857.pdf
- https://static.usrfiles.com/ugd/6c032c_f5485dc758d7441ea59ea5eb3cdac3d5.pdf
- https://static.usrfiles.com/ugd/b8c837_558be57c9b444ec29405b26a0a826d00.pdf
- https://static.usrfiles.com/ugd/735189_239d68ed622544f89b004a3196fc2e8e.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_off00006e00.binf19cff27dfa161377c7fdba994ae30c53cd855e85a53fc6610b7cf327586b6b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E00 | 5188 bytes |
font_01_sfnt_off00007f9e.bin06a601ff20788d4f0bbf7e13212e56456008bd27e67db4a84bf630970f02ef77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F9E | 10788 bytes |
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