MALICIOUS
152
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 'https://ttraff.me/wix?keyword=brainpop+periodic+table+of+elements+worksheet+answers'. This URL is embedded within the document body, which also contains text related to a 'Brainpop periodic table of elements worksheet answers' lure. The ML classifier strongly supports the malicious verdict. The presence of multiple embedded URLs and the PDF structure suggest a delivery mechanism for malicious content.
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.me/wix?keyword=brainpop+periodic+table+of+elements+worksheet+answers
- https://static.usrfiles.com/ugd/ce5d00_da20441b87b84f6e9a452ac6322dbee8.pdf
- https://static.usrfiles.com/ugd/aff7ca_48d0aea10e9e41979f5c629e721382ff.pdf
- https://static.usrfiles.com/ugd/b8c837_305686cba2b1416ab26206ccd25b4f1a.pdf
- https://static.usrfiles.com/ugd/10b11f_601ef5a58f004aa6afb9687e4c468db8.pdf
- https://static.usrfiles.com/ugd/67e251_e5f2851a7c734689a9995fe6d4cccc7a.pdf
- https://static.usrfiles.com/ugd/96768c_e3abda15a9fd444e825d6429aa931cc6.pdf
- https://cdn.shopify.com/s/files/1/0429/8083/5482/files/cells_and_organelles_worksheet_science_spot.pdf
- https://cdn.shopify.com/s/files/1/0431/2317/9677/files/all_souls_trilogy_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/7160/2855/files/canales_ionicos_de_sodio.pdf
- https://static.usrfiles.com/ugd/5438e3_616662c6b7fc4014872eb94fd9846cf2.pdf
- https://static.usrfiles.com/ugd/b8c837_0e48e6ace5ee48cfb4859bc2255ecf25.pdf
- https://static.usrfiles.com/ugd/b8c837_7d9c1b7c5fdc412f8793aac7ea0c75cd.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/
- https://static.usrfiles.com/ugd/b8c
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000798c.bin3b89a1333aa93e194de12c5c5da229a8f3a969ace6b07a90c5323b9ece6747ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x798C | 2828 bytes |
font_01_sfnt_off00008387.bin3afda4183d3a6f0a1845bdae8137ec0e1f1afa2c45a0901bffb47431429aaadf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8387 | 5740 bytes |
font_02_sfnt_off000096e4.binc284ccc830439df30571a7278fcaf11d52dd7e33e1b9ceb2f74d595b6cf7a07d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96E4 | 9692 bytes |
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