MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, including one pointing to a known malicious redirector. The document body text, though heavily obfuscated, contains the string 'Carol of the bells piano sheet pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The ML classifier also 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.com/pify?keyword=carol+of+the+bells+piano+sheet+pdf
- http://files.greensborobibleinstitute.org/uploads/1/3/2/6/132681436/bebuwuwepaxowinab.pdf
- http://files.chtcredclay.com/uploads/1/3/1/6/131606179/fitover-ketefoni-fefilelokerera-zadunova.pdf
- http://dutopa.rmcreation.com/uploads/1/3/0/9/130969754/7524194.pdf
- https://cdn.shopify.com/s/files/1/0431/6551/5933/files/2558398940.pdf
- https://cdn.shopify.com/s/files/1/0429/7188/9817/files/medopono.pdf
- https://cdn.shopify.com/s/files/1/0431/3061/8011/files/13702117450.pdf
- https://cdn.shopify.com/s/files/1/0430/6727/7469/files/difikidu.pdf
- https://cdn.shopify.com/s/files/1/0432/4897/6027/files/procd_de_contact_acide_sulfurique.pdf
- https://cdn.shopify.com/s/files/1/0431/1751/0818/files/xodidujarobilitizuw.pdf
- https://cdn.shopify.com/s/files/1/0433/3250/1656/files/44169930453.pdf
- https://cdn.shopify.com/s/files/1/0440/9910/9016/files/biluporemija.pdf
- https://cdn.shopify.com/s/files/1/0440/0542/5310/files/semantic_barriers_to_effective_communication.pdf
- https://cdn.shopify.com/s/files/1/0435/8363/5619/files/omission_of_articles_rules.pdf
- https://cdn.shopify.com/s/files/1/0432/5320/3102/files/wiwuvuseregolenepopekajaf.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_off000061f2.binb24431e5d1eea695c7bc88220cff628535f0b77447657760bfdc8272258b7c47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61F2 | 5176 bytes |
font_01_sfnt_off0000737f.bin9a8216ce27ae7633797bdad79d6620e8d32ae4f0d296580cf428f4ceb7ed02dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x737F | 10756 bytes |
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