MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is identified as malicious due to its inclusion of a link farm and a redirector to known malicious infrastructure. The document body, though obfuscated, contains text related to sheet music and a URL that points to a redirector, suggesting a lure to download further malicious content. The presence of numerous embedded links, many pointing to Shopify, indicates a potential SEO poisoning or link farm tactic to distribute malware.
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=rewrite+the+stars+flute+sheet+music+free
- http://gukaju.zhangtours.com/uploads/1/3/0/7/130775701/1608915.pdf
- http://files.allstarskaraoke.com/uploads/1/3/0/9/130969748/7215338.pdf
- http://files.anacostiagrows.org/uploads/1/3/1/1/131164081/5873327.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/0744/2072/files/nutajonawikexo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pamuzinesikajojefex.pdf
- https://cdn.shopify.com/s/files/1/0440/0198/4662/files/mikrotik_access_point_configuration.pdf
- https://cdn.shopify.com/s/files/1/0432/1925/5454/files/java_offline_windows_10.pdf
- https://cdn.shopify.com/s/files/1/0437/3705/5393/files/kiwoketi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tefabojukiva.pdf
- https://cdn.shopify.com/s/files/1/0437/3626/8949/files/tesla_model_s_manual.pdf
- https://cdn.shopify.com/s/files/1/0440/5493/7765/files/revoro.pdf
- https://cdn.shopify.com/s/files/1/0437/9151/5797/files/9479575143.pdf
- https://cdn.shopify.com/s/files/1/0434/3123/1655/files/betavuxusikokokadoduf.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_off00004fae.bin0eedafd33fb3ef74d65a43cf34ff96f82bd25ab3db0a76e6467dc8a7754193e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FAE | 5220 bytes |
font_01_sfnt_off00006158.bin4d1242af5d39f321844be4f60a2aeeecd77512a59ca5b2b549b80acea9ff7259 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6158 | 13832 bytes |
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