MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a free piano sheet music download. The document body, though heavily obfuscated, contains references to this URL and other Shopify URLs, likely part of a link farm to improve SEO and distribute the malicious link. 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.ru/pify?keyword=flares+the+script+piano+sheet+music+free
- http://tefijafa.mychangingthenarrative.com/uploads/1/3/1/4/131437421/renimegin.pdf
- https://cdn.shopify.com/s/files/1/0440/6122/9206/files/thermo_scientific_cdna_synthesis_protocol.pdf
- https://cdn.shopify.com/s/files/1/0431/4732/9702/files/musorewuzijebilomilojamen.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bofudajix.pdf
- https://cdn.shopify.com/s/files/1/0440/3098/4357/files/konisusu.pdf
- https://cdn.shopify.com/s/files/1/0456/9949/8140/files/api_platform_swagger_yaml.pdf
- https://cdn.shopify.com/s/files/1/0430/3588/5721/files/roweka.pdf
- https://cdn.shopify.com/s/files/1/0434/7451/8180/files/18296910236.pdf
- https://cdn.shopify.com/s/files/1/0437/9354/7424/files/sonic_2_long_version.pdf
- https://cdn.shopify.com/s/files/1/0427/7541/2902/files/jopiraxixevozepuwelumaju.pdf
- https://cdn.shopify.com/s/files/1/0432/2122/1533/files/lodibijemejoliguxite.pdf
- https://cdn.shopify.com/s/files/1/0435/7016/7966/files/mesifobulasupodik.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/anlodipino_bula.pdf
- https://cdn.shopify.com/s/files/1/0437/1179/1257/files/84311732453.pdf
- https://cdn.shopify.com/s/files/1/0431/8799/4792/files/butefisekovuwajefalobap.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_off00004bdc.bin58209cfce69a517fa33038ff7642e511d7360cd226920efc3182294b12d0578e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4BDC | 5208 bytes |
font_01_sfnt_off00005d62.bin87bb9ba2e7550f7eebae6d06e348421c8783c9890991405b820a42cc38297405 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D62 | 10292 bytes |
font_02_sfnt_off000080e0.binfb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80E0 | 16120 bytes |
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