MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains multiple embedded links, including one that redirects to a malicious domain. The document body, though heavily obfuscated, contains text related to a piano sheet and a URL that appears to be part of a link farm designed for SEO manipulation. The ML classifier strongly indicated maliciousness, and the presence of redirector links confirms a malicious intent to lead the user to harmful content.
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.club/wix?keyword=river+flows+in+you+piano+sheet+everyonepiano
- http://files.rcwarriors.com/uploads/1/3/1/3/131380944/lokupifinovuw.pdf
- http://files.herestoreading.com/uploads/1/3/1/3/131378816/xitebovaloz_darotunujidor_wudesiludonuro_vagiru.pdf
- http://julisezi.griderproperties.com/uploads/1/3/0/9/130969204/bijuzigimogoso.pdf
- http://files.atoalabama.com/uploads/1/3/0/7/130775002/fugola-kosazegi-ketukuliz-vaxaxorib.pdf
- http://files.nmsuchristianchallenge.org/uploads/1/3/0/8/130874458/watejomake-vezepufajunuja-gowawib.pdf
- https://static.usrfiles.com/ugd/cece23_d859f93e206e411884d4264e80bb3cd2.pdf
- https://static.usrfiles.com/ugd/696117_b32cb3a330054060931e54d965a31bad.pdf
- https://static.usrfiles.com/ugd/a8ca0f_3968b51ca9db450ab4dcce3a89b8cc14.pdf
- https://static.usrfiles.com/ugd/cc3ca9_d22413fcdb5d43aa91df705be86fc758.pdf
- https://cdn.shopify.com/s/files/1/0431/2635/8173/files/34691500756.pdf
- https://cdn.shopify.com/s/files/1/0429/9302/5187/files/lorobexawawenifenarubek.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.pdf
- https://cdn.shopify.com/s/files/1/0428/3147/8950/files/47688563551.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_off0000610d.bin1186aa12f94d78e96d35dd058008a8dde6747d8c743ef102b0836cdce20c2c71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x610D | 5252 bytes |
font_01_sfnt_off00007308.binb18cabb39a1320d4c4f226d0a6111a251189be895317ffaf12f76bbf03033240 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7308 | 12760 bytes |
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