MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a redirector link to ttraff.ru. The document body, though heavily obfuscated, contains text related to 'blank space piano sheet music free pdf' and the malicious URL, suggesting a lure. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves redirecting the user to malicious infrastructure via a deceptive 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=blank+space+piano+sheet+music+free+pdf
- http://files.douglasrowestudios.com/uploads/1/3/0/7/130739459/b2eaeffa50ad1.pdf
- http://files.gritiyacctv.com/uploads/1/3/0/9/130969298/nizufalunudedi.pdf
- http://files.reginaswatercolor.com/uploads/1/3/1/4/131453753/fajomelugawipugop.pdf
- https://cdn.shopify.com/s/files/1/0432/6581/8789/files/fixajeduzutosejoxan.pdf
- https://cdn.shopify.com/s/files/1/0430/4257/0402/files/2683250634.pdf
- https://cdn.shopify.com/s/files/1/0432/8180/9566/files/zefebogisadenadalagomuvo.pdf
- https://cdn.shopify.com/s/files/1/0432/2738/1920/files/bezejifigejisunaxivu.pdf
- https://cdn.shopify.com/s/files/1/0432/0441/1556/files/pisedubasuk.pdf
- https://cdn.shopify.com/s/files/1/0431/5014/7733/files/80392409811.pdf
- https://cdn.shopify.com/s/files/1/0437/8660/0609/files/gixefuvunomapikudegosi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65233410578.pdf
- https://cdn.shopify.com/s/files/1/0433/6982/4407/files/d_d_stealth.pdf
- https://cdn.shopify.com/s/files/1/0437/7473/8586/files/jokijekoruwex.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_off00004758.binb6cb64dd553b1c7caac708e22d9f0a3ce44e75c6e1a96cae9913f99c34690e78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4758 | 5508 bytes |
font_01_sfnt_off000059ed.bin2f86831ce6ceb326c3782fd8705995042d12a3bf76dfb2c22a9a4d06f0e45570 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59ED | 10288 bytes |
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