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, disguised as free piano sheet music. The document body and embedded URLs suggest a link farm strategy to distribute malicious content. The ML classifier strongly indicated maliciousness, and the PDF structure includes a malicious redirector link.
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=piano+sheet+music+for+beginners+pdf+free
- http://files.dianakemp.com.au/uploads/1/3/1/3/131398380/tilew.pdf
- http://files.juliewiegand.com/uploads/1/3/1/4/131453480/dd1b72145be5fa.pdf
- http://files.ypoceanside.com/uploads/1/3/1/8/131871642/fomegudaxozam_zinogevija_berum.pdf
- https://cdn.shopify.com/s/files/1/0440/6509/5845/files/jivejajosugijeniro.pdf
- https://cdn.shopify.com/s/files/1/0428/0690/2950/files/96264600660.pdf
- https://cdn.shopify.com/s/files/1/0430/6183/7981/files/xigagas.pdf
- https://cdn.shopify.com/s/files/1/0435/5152/2977/files/46740992027.pdf
- https://cdn.shopify.com/s/files/1/0434/4345/4102/files/wuforom.pdf
- https://cdn.shopify.com/s/files/1/0428/6421/4175/files/tininu.pdf
- https://cdn.shopify.com/s/files/1/0429/5072/1699/files/3270446421.pdf
- https://cdn.shopify.com/s/files/1/0438/9843/7784/files/83588712120.pdf
- https://cdn.shopify.com/s/files/1/0431/0941/7127/files/91117578544.pdf
- https://cdn.shopify.com/s/files/1/0428/3590/2631/files/24888525880.pdf
- https://cdn.shopify.com/s/files/1/0438/8998/3643/files/daily_ui_challenge_list.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_off000092ea.bin2cecdbe86bfa196fe8eb1380d3ee32520e980bdf3877a3be7fe3051da56ba383 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x92EA | 5676 bytes |
font_01_sfnt_off0000a60c.bin774fe3f55e7dc16c91dd78e594db7f86ba9f26c5fd02235de847bab1c286f743 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA60C | 10976 bytes |
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