Malicious PDF — malware analysis report

Static analysis result for SHA-256 a11f7b0e5e483a1e…

MALICIOUS

PDF

34.8 KB Created: 2020-08-19 00:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50d8bbccadcedb056c6aad2804de728f SHA-1: 4b14206be8579c893f6b9299a4c439d99e698349 SHA-256: a11f7b0e5e483a1e67a5650b2e7152c33cd29c098c048aa1fc2d356064f67378
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many pointing to external PDF files hosted on various domains, including a redirector. This behavior is indicative of a link farm or SEO manipulation tactic, potentially used to distribute malicious content or improve search engine ranking for malicious sites. The presence of a link to a known malicious redirector further supports this assessment.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Embedded URL info EMBEDDED_URL
    One 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=missing+decimal+number+line+worksheet
    • http://lumizin.hopewithstacy.com/uploads/1/3/2/7/132712354/e394338100.pdf
    • http://files.lisaperron.org/uploads/1/3/0/7/130775109/7491179.pdf
    • http://tubaji.simplybeautifulpg.ca/uploads/1/3/1/4/131437792/61294.pdf
    • http://files.dorzasdrivingschool.com/uploads/1/3/1/8/131871535/vupivuwofosogu.pdf
    • http://files.co-created.org/uploads/1/3/1/3/131398059/kajefivozedakidasip.pdf
    • https://cdn.shopify.com/s/files/1/0428/5195/8947/files/lumeza.pdf
    • https://cdn.shopify.com/s/files/1/0436/7309/2246/files/alimentos_antiinflamatrios_e_antioxidantes.pdf
    • https://cdn.shopify.com/s/files/1/0438/4184/7458/files/cadiz_constitution.pdf
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/jotoxotazove.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/ap_chemistry_balancing_equations_practice.pdf
    • https://cdn.shopify.com/s/files/1/0437/3836/6113/files/74471566654.pdf
    • https://cdn.shopify.com/s/files/1/0433/9531/7927/files/tipos_de_valores_morales.pdf
    • https://cdn.shopify.com/s/files/1/0435/8032/6051/files/97006858362.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.

FilenameKindSourceSize
font_00_sfnt_off000049f2.bin
feeeee38c8a9c2ce87c7e8cdba275fc7aef27a51b2366860625d2750b6fbe303		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49F2 5656 bytes
font_01_sfnt_off00005d0c.bin
fadc6e2f0151a2d3a90e63d2d3877648d38c44dc25e72f6f337014565c7df847		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0C 9816 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.