Malicious PDF — malware analysis report

Static analysis result for SHA-256 de2d9769d9f9931a…

MALICIOUS

PDF

62.4 KB Created: 2020-09-06 01:13:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bebd27371541957e86b36fdfec65bbb1 SHA-1: 279ac23fa01088d714667424f2260fe23908f40f SHA-256: de2d9769d9f9931aef4d53578a4b6c578bcf1cfafce56a372bb541dd0341c238
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=lizardmen+warhammer+2+unit+guide', is designed to lure users to malicious infrastructure. The document's content and structure suggest a social engineering attempt to disguise the malicious link as relevant information.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/wix?keyword=lizardmen+warhammer+2+unit+guide
    • https://cdn.shopify.com/s/files/1/0432/4891/0491/files/78231753332.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/chori_chori_movie_songs_3gp_video.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7796/files/kajejibovivogumotewuvi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4892/6364/files/22142076401.pdf
    • https://cdn.shopify.com/s/files/1/0434/4817/2710/files/16808606586.pdf
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/administrative_assistant_functional_resume_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66656561998.pdf
    • https://cdn.shopify.com/s/files/1/0434/5341/5576/files/pukikiw.pdf
    • https://static.usrfiles.com/ugd/99b222_6ef7da0c07c941eb9c3fdc7d4cb4979a.pdf
    • https://static.usrfiles.com/ugd/cb2bed_a9c344a4b5d0481c94854965e0d8d0af.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_off0000b82b.bin
4492713b598f07696e4eda40b3e4ef9b341690262350178aa63f8bc86be5c6a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB82B 5244 bytes
font_01_sfnt_off0000c9f0.bin
e2b0f6b6aa917083a5cefff360958248554cff383bd9d627c66b91425cca575b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9F0 10128 bytes

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