MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text related to 'free sheet music for guitar chords' and a URL that appears to be a lure. The primary malicious URL identified is ttraff.ru, which is used in conjunction with a seemingly benign Shopify URL to obscure the malicious intent. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or redirection attack.
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.ru/pify?keyword=free+sheet+music+for+guitar+chords
- http://files.corneliusmullerproductions.com/uploads/1/3/1/1/131164475/polati.pdf
- http://files.the-joy-of-syntax.com/uploads/1/3/1/4/131453620/rivavopo-wudigevo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/9663/7597/files/manual_autocad_2020_espaol_gratis.pdf
- https://cdn.shopify.com/s/files/1/0434/7510/7992/files/how_to_delete_all_emails_on_gmail.pdf
- https://cdn.shopify.com/s/files/1/0434/2258/0886/files/gogegizenu.pdf
- https://cdn.shopify.com/s/files/1/0433/3725/3023/files/a_level_physics_topics.pdf
- https://cdn.shopify.com/s/files/1/0438/2962/4982/files/zedozozonarimifefimimope.pdf
- https://cdn.shopify.com/s/files/1/0433/2191/7598/files/10512795953.pdf
- https://cdn.shopify.com/s/files/1/0430/7304/4634/files/jalujamirarulipixusuju.pdf
- https://cdn.shopify.com/s/files/1/0428/7637/1110/files/87470271659.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/brugmansia_candida.pdf
- https://cdn.shopify.com/s/files/1/0430/6203/4589/files/bacteria_transformation.pdf
- https://cdn.shopify.com/s/files/1/0429/6507/4086/files/25547567939.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008a63.bincfa4c3e565e3c98ad030bc8b33c6785f6517c5eed3a6829f9b36a9bcebe062c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A63 | 5356 bytes |
font_01_sfnt_off00009c78.bin2582b5c917e6b284cd0f874900186ebeede57854ddb859c8e85613d8f6b3ba9b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C78 | 15544 bytes |
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