MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious sites. The document also contains a large number of external PDF links, many hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning attempt. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a malicious link embedded within the document.
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=contemporary+worship+songs+chords+pdf
- https://static.usrfiles.com/ugd/b8c837_e8d5142e7c894a51bdee1eaed8d5c0eb.pdf
- https://static.usrfiles.com/ugd/b8c837_e8e4233f8f154bb7a74a9e530c66b294.pdf
- https://static.usrfiles.com/ugd/b8c837_f23cfcb6d57948f9967fdc9a53116e2b.pdf
- https://static.usrfiles.com/ugd/b8c837_7298ab926a744f9c8e592a741980f1eb.pdf
- https://cdn.shopify.com/s/files/1/0428/5513/7447/files/bulif.pdf
- https://cdn.shopify.com/s/files/1/0428/4809/2323/files/fowikewa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdf
- https://cdn.shopify.com/s/files/1/0432/0549/2904/files/17145695733.pdf
- https://static.usrfiles.com/ugd/b8c837_76d0cdb03cbe4eefb51f5c5877cff0e5.pdf
- https://static.usrfiles.com/ugd/b8c837_30b292b0029d45a89908cbc89b7934d9.pdf
- https://static.usrfiles.com/ugd/b8c837_345a2890becb4ebc98417d0748cca333.pdf
- https://static.usrfiles.com/ugd/b8c837_512ea1efca3748809b0548294fbd1bd7.pdf
- https://static.usrfiles.com/ugd/b8c837_45c30c6ee8034738b1259254db7c5863.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_off00005dda.bin5d1f19139f33b97a5a5e412f29fb4f0e970e061e65e69e49c42fa270040b0f3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DDA | 5544 bytes |
font_01_sfnt_off00007098.binfbdd7c834c72e0c83395082ccf8acd7adee75dffe2dcc059fed761ffff87d1dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7098 | 10156 bytes |
font_02_sfnt_off000092c7.binff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x92C7 | 4324 bytes |
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