MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to sheet music and the malicious URL, suggesting a lure. The presence of multiple external PDF links, many hosted on Shopify, indicates a link farm strategy. The ML classifier 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.me/wix?keyword=thank+you+for+the+music+sheet+music
- https://static.usrfiles.com/ugd/b8c837_59da4d82b3f7489ba22734dd22dd03bd.pdf
- https://static.usrfiles.com/ugd/b8c837_a09ddbb188c44881a8a6ffc2f87c92af.pdf
- https://static.usrfiles.com/ugd/5fd5c1_93f851b3b3094780b45b83574a12e5cb.pdf
- https://static.usrfiles.com/ugd/d54300_08e87ef67023447ab54d8a44d8ce4747.pdf
- https://static.usrfiles.com/ugd/b8c837_ce1e48244c014206ba6b39bce20c7902.pdf
- https://cdn.shopify.com/s/files/1/0429/5409/6806/files/59078952484.pdf
- https://cdn.shopify.com/s/files/1/0430/4214/4407/files/muwovotebanuzeg.pdf
- https://cdn.shopify.com/s/files/1/0437/6972/5080/files/org._apache._spark._sparkexception_task_not_serializable.pdf
- https://cdn.shopify.com/s/files/1/0427/8052/4710/files/giwetapa.pdf
- https://cdn.shopify.com/s/files/1/0436/2698/7680/files/49365346921.pdf
- https://cdn.shopify.com/s/files/1/0428/9521/2697/files/vodebe.pdf
- https://cdn.shopify.com/s/files/1/0430/8847/8365/files/ziwona.pdf
- https://cdn.shopify.com/s/files/1/0431/6558/1468/files/letter_of_guarantee_template.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_off00007d10.bin5322f71ee8a25ce673aa392f23aa36164a7e0889e01040185aa55f03177f2966 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D10 | 5204 bytes |
font_01_sfnt_off00008e9f.bin19894b145c054263644f3348eb07b6f60226ecfe85616c01f2a405d831fb4992 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E9F | 10456 bytes |
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