MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many of which are disguised as legitimate documents, to a redirector service. The primary malicious link identified is https://ttraff.cc/pify?keyword=brick+masonry+design+pdf, which is a known malicious redirector. The file's structure and content suggest a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure.
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=brick+masonry+design+pdf
- http://files.henrikbechseeberg.com/uploads/1/3/1/1/131163578/supaj-rutubiforol.pdf
- http://files.middleschoolmind.com/uploads/1/3/0/8/130813796/regiwe_kijeja_pozux_fiwuli.pdf
- http://nutigude.cvcanoeracing.ca/uploads/1/3/0/9/130969352/6f74d.pdf
- https://cdn.shopify.com/s/files/1/0437/1342/9655/files/fundamental_of_c_programming_language.pdf
- https://cdn.shopify.com/s/files/1/0431/6528/6564/files/biochemical_test_for_fungi.pdf
- https://cdn.shopify.com/s/files/1/0431/7007/0687/files/financial_management_brigham_14th_edition.pdf
- https://cdn.shopify.com/s/files/1/0434/8179/2664/files/libinuj.pdf
- https://cdn.shopify.com/s/files/1/0434/1760/0156/files/55051397775.pdf
- https://cdn.shopify.com/s/files/1/0432/9753/8203/files/85892182484.pdf
- https://cdn.shopify.com/s/files/1/0438/1265/1170/files/gevilurujakejupoxaxur.pdf
- https://cdn.shopify.com/s/files/1/0431/8475/0747/files/poker_books_free_download.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6657/files/bacterias_gram_negativas_e_positivas.pdf
- https://cdn.shopify.com/s/files/1/0429/0999/1075/files/24851252867.pdf
- https://cdn.shopify.com/s/files/1/0429/8027/8426/files/29458863636.pdf
- https://cdn.shopify.com/s/files/1/0433/1952/5531/files/89954816538.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_off000056ed.bin6ea00d540f9aa2654a3f6d5352dad28899992905e3480c1d7a7220b285dc8c12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x56ED | 5656 bytes |
font_01_sfnt_off00006a2c.binf599349fe6bd4f4e1baeeda3d4c8bebe35b8058948525f8fa74cdfbe0955fd00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A2C | 9756 bytes |
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