Malicious PDF — malware analysis report

Static analysis result for SHA-256 2353bab654349e0d…

MALICIOUS

PDF

36.0 KB Created: 2020-04-21 11:13:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 90942eb3e6b8b6daaf5ad88383d64f51 SHA-1: d198fe38a8c34027c5277cb6a8cc22f3d4d3844a SHA-256: 2353bab654349e0da3c929e264748274423b1fe82219f631b1a5ec41a368e201
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body contains the text 'Chinnari mutta songs free', which appears to be a lure to attract users to click on the embedded links. No scripts were extracted from this sample, and the primary malicious activity appears to be the distribution of numerous external URLs.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://bloodblisterapparel.com/uploads/1/3/0/4/130483591/130483591.html#chinnari+mutta+songs+free
    • http://esimathis.com/uploads/1/3/0/5/130550836/rerumuweled.pdf
    • http://kellmercerlaw.com/uploads/1/3/0/5/130590700/2f0a3d44.pdf
    • http://aspenridgeslavelake.com/uploads/1/3/0/7/130739449/7113792.pdf
    • http://mail.facialsbyjada.com/uploads/1/3/0/9/130969510/12da2fa9b89.pdf
    • http://skyblueaether.com/uploads/1/3/0/6/130639626/6298117.pdf
    • http://snackpasscanada.com/uploads/1/3/0/5/130551488/topagi-laxiximotu.pdf
    • http://langloisracinedancestudio.com/uploads/1/3/1/4/131483267/sazab-jelugetitemel-gamuzufisabud-jeluruvaviwape.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006621.bin
f0c4342ef736899417173489284b7e7d172df020f13a121f02570383d4ce5dd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6621 7808 bytes

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