Malicious PDF — malware analysis report

Static analysis result for SHA-256 300bb21c184e15f6…

MALICIOUS

PDF

50.7 KB Created: 2020-08-19 18:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 412aec9e7460db9e08f0e7521e80e76b SHA-1: bb09a8d37a47731f389c500757996e44a13b5476 SHA-256: 300bb21c184e15f66ae933e8225576cf5b7843e7fda1b4d3d14ff97d3264a95c
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of an SEO link farm, embedding numerous external links to other PDF documents. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=bone+marrow+granuloma+case+report', is flagged as a malicious redirector. The primary intent appears to be manipulating search engine results rather than direct user compromise, though the redirector poses a risk.

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.ru/pify?keyword=bone+marrow+granuloma+case+report
    • http://files.pietkoornhof.com/uploads/1/3/1/0/131070866/6946c8c8c5913.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/list_of_2013_comedy_films.pdf
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/calendario_2020_tumblr.pdf
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/10868080309.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/practice_aptitude_tests_numerical_test_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/rasozaded.pdf
    • https://cdn.shopify.com/s/files/1/0437/8509/3272/files/3ds_max_2018_update_5.pdf
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/lukimosugimobowiw.pdf
    • https://cdn.shopify.com/s/files/1/0435/1895/1576/files/49120570631.pdf
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/86724642157.pdf
    • https://cdn.shopify.com/s/files/1/0434/9306/4870/files/90092791174.pdf
    • https://cdn.shopify.com/s/files/1/0433/9934/8389/files/jofamimuzavever.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a44.bin
8617d0d8c00af54c334e6f2f9beab002ae6a473a82a981e7f177d16c87f1dbb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A44 5228 bytes
font_01_sfnt_off00008c03.bin
6cda082ac87f5f3d722a08160f42ee880ba1c77487273073f55df04211df5631		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C03 10560 bytes
font_02_sfnt_off0000b023.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB023 4324 bytes

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