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, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a 'types of biomes worksheet pdf'. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, many hosted on Shopify, suggesting a link farm designed to improve search engine ranking for malicious content. The ML_NYX_PDF_MALICIOUS score further supports the malicious nature of this 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.cc/pify?keyword=types+of+biomes+worksheet+pdf
- http://files.dealsrgreat.com/uploads/1/3/2/8/132815343/6d703a82029cd0a.pdf
- http://files.happinezibiza.com/uploads/1/3/1/8/131871963/ed1d28e.pdf
- http://files.carsesus.org/uploads/1/3/0/8/130874524/mumukavakirirep-bixusopumekaz-xumezax-putof.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdf
- https://cdn.shopify.com/s/files/1/0435/7606/6211/files/fallout_4_5mm_ammo.pdf
- https://cdn.shopify.com/s/files/1/0431/3225/6407/files/bjarniv._blog._is.pdf
- https://cdn.shopify.com/s/files/1/0433/8545/4757/files/xebebi.pdf
- https://cdn.shopify.com/s/files/1/0432/9403/2040/files/96858843564.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35117459625.pdf
- https://cdn.shopify.com/s/files/1/0429/9682/6273/files/gulunopojuferasejosixifek.pdf
- https://cdn.shopify.com/s/files/1/0447/9765/7248/files/cookie_clicker_elder_pact.pdf
- https://cdn.shopify.com/s/files/1/0430/2949/5959/files/pometa.pdf
- https://cdn.shopify.com/s/files/1/0432/8990/3259/files/totirotarudo.pdf
- https://cdn.shopify.com/s/files/1/0434/2707/0104/files/25394297868.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_off0000619c.binb89cb77e07d05359a9db6e6b88f2fdd05dfba5e975593aad3dac888f7ea8329b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x619C | 5384 bytes |
font_01_sfnt_off000073d7.binc697af47f477091e950f7cc2580f9ed8fff4108963967ba12b480cf128456a6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73D7 | 10132 bytes |
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