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, disguised as piano sheet music. This redirector likely leads to a further stage of the attack. The PDF also hosts a large number of other PDF files, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. The ML classifier strongly indicated maliciousness.
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=peanuts+theme+song+piano+sheet+music+pdf
- http://files.mtviewbaptistchurchal.org/uploads/1/3/2/7/132740965/poxefamubel-dopirowoj.pdf
- http://files.unfinishededucation.com/uploads/1/3/2/6/132682676/7dbb3.pdf
- http://files.paulasherbals.com/uploads/1/3/2/6/132682790/6753280.pdf
- http://files.nltbiblecollege.org/uploads/1/3/1/4/131452735/vexobetat_fejuviv.pdf
- https://cdn.shopify.com/s/files/1/0435/7432/9507/files/52803275630.pdf
- https://cdn.shopify.com/s/files/1/0428/7827/1641/files/4435178844.pdf
- https://cdn.shopify.com/s/files/1/0431/6240/2967/files/22827449105.pdf
- https://cdn.shopify.com/s/files/1/0429/9902/1717/files/vutuderujodupawo.pdf
- https://cdn.shopify.com/s/files/1/0431/7039/8372/files/89706740810.pdf
- https://cdn.shopify.com/s/files/1/0432/3203/4976/files/18243696539.pdf
- https://cdn.shopify.com/s/files/1/0433/8126/0440/files/60685209096.pdf
- https://cdn.shopify.com/s/files/1/0432/7810/6779/files/race2_songs_download.pdf
- https://cdn.shopify.com/s/files/1/0429/6055/2085/files/tesujoxikuxavaj.pdf
- https://cdn.shopify.com/s/files/1/0432/3459/0888/files/59812221485.pdf
- https://cdn.shopify.com/s/files/1/0431/3543/4901/files/damamiminozixezojomizolan.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_off00004df4.bin0ec278efdf417dd0bfa022313c285f853f863d53f586b1d90301a9b971d2a4a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4DF4 | 5440 bytes |
font_01_sfnt_off00006058.bind7d4ac19aa8d6b8ae69eb9fe1f35df45e5feb8b2f2577b2d9e3377b5527f2f0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6058 | 10164 bytes |
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