MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting a lure for free sheet music. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly indicated maliciousness. The primary attack vector appears to be social engineering via a deceptive link within the PDF.
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=johnny+b+goode+sheet+music+pdf+free
- http://files.ericaldama.com/uploads/1/3/0/7/130776451/4cc83cc8bdd.pdf
- http://jexudisi.sprucehousingcoop.com/uploads/1/3/1/4/131453495/85edfe94640b4.pdf
- https://cdn.shopify.com/s/files/1/0434/5564/3813/files/saresop.pdf
- https://cdn.shopify.com/s/files/1/0427/9848/1564/files/kojuvodamoxu.pdf
- https://cdn.shopify.com/s/files/1/0431/5689/7947/files/bringing_out_the_best_in_yourself_at_work.pdf
- https://cdn.shopify.com/s/files/1/0438/8447/8632/files/kewevipakadesawonup.pdf
- https://cdn.shopify.com/s/files/1/0430/7173/3917/files/sopuziso.pdf
- https://cdn.shopify.com/s/files/1/0428/1224/4134/files/83980798211.pdf
- https://cdn.shopify.com/s/files/1/0433/6680/9765/files/84033097418.pdf
- https://cdn.shopify.com/s/files/1/0431/6073/1808/files/rcub_b._ed_syllabus.pdf
- https://cdn.shopify.com/s/files/1/0438/2123/6381/files/vixuxixuwora.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sovir.pdf
- https://cdn.shopify.com/s/files/1/0431/6341/8784/files/72177257149.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000044cb.bin1a785b975b25dcea90b59482ab7978998348a1a01f0c44837d0aec5de25cfb35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x44CB | 5440 bytes |
font_01_sfnt_off00005729.binc17641504ee0edfe510816fb882f1155ab62b1e86eacf684d09ca0ae7b3a0ec7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5729 | 10216 bytes |
font_02_sfnt_off00007a26.bind1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A26 | 4324 bytes |
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