MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc', which is used to obscure the final destination. It also exhibits characteristics of a PDF link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and a reference to 'pearson realize spanish answers', suggesting a lure to trick users into clicking the link. The ML classifier strongly indicates 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.cc/pify?keyword=pearson+realize+spanish+answers
- http://files.cornwallamillionactsofsanctuary.com/uploads/1/3/2/7/132740892/takujemoresebida.pdf
- http://files.bloomingtonbirthdoula.com/uploads/1/3/0/7/130775023/zomawebejitik.pdf
- http://wesozup.prakritidance.com/uploads/1/3/0/8/130873782/336e3cb02.pdf
- http://muwafar.championschoicecamps.com/uploads/1/3/1/0/131071164/7810244.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0436/9294/9658/files/92323517672.pdf
- https://cdn.shopify.com/s/files/1/0432/7899/1513/files/zemogifeviwazoziwizeb.pdf
- https://cdn.shopify.com/s/files/1/0433/3309/1496/files/jubevolesiwavuvo.pdf
- https://cdn.shopify.com/s/files/1/0430/8510/3255/files/libevu.pdf
- https://cdn.shopify.com/s/files/1/0440/6578/3958/files/javascript_module_pattern.pdf
- https://cdn.shopify.com/s/files/1/0434/6426/1797/files/bawowabi.pdf
- https://cdn.shopify.com/s/files/1/0437/8276/6743/files/bsnl_landline_bill_view.pdf
- https://cdn.shopify.com/s/files/1/0436/7787/6377/files/74175641324.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9483/files/mixafaxosozu.pdf
- https://cdn.shopify.com/s/files/1/0434/6963/5734/files/pdf_file_downloader_online.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007fad.bin5f3060fb187aa7ba22c4c41722c6acf46945971497fc00cf81d0e361c9a289d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FAD | 5052 bytes |
font_01_sfnt_off000090e9.binf64c04adad5bad07436a63d9b86d93246b7b87df51d615138d97969e30dad341 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90E9 | 10580 bytes |
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