Malicious PDF — malware analysis report

Static analysis result for SHA-256 49424683ec216546…

MALICIOUS

PDF

38.2 KB Created: 2020-04-03 06:23:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 66b78700d0c8a8783c672d56781370d7 SHA-1: 21c976f0146ad0c59a9f5166d03a7346768e0d53 SHA-256: 49424683ec2165460f311dd5e9ef5a83390d096fc64377bbe538f32c5f4d79e4
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or SEO manipulation tactic, often used to distribute malicious content or improve search engine rankings for malicious sites. The document body itself contains garbled text and references to the wkhtmltopdf tool, suggesting it was programmatically generated. The primary intent appears to be directing users to a network of external URLs, potentially for further exploitation or malware delivery.

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://lotusfamilycommunitysynergy.org/uploads/1/3/0/6/130639116/130639116.html#significado+de+numeros+fraccionarios+y+decimales+que+son
    • http://krgservicecorp.com/uploads/1/3/1/4/131407695/6d46a5a1415e.pdf
    • http://domadialaw.com/uploads/1/3/0/6/130605094/fixiruwi.pdf
    • http://purdytan.com/uploads/1/3/0/4/130477309/06ae32.pdf
    • http://theuglyhalfofappleinc.com/uploads/1/3/0/7/130776775/30c846308.pdf
    • http://ninebotours.com/uploads/1/3/0/2/130271019/lolasa-bebedu.pdf
    • http://bhpcd.org/uploads/1/3/0/6/130620222/494834.pdf
    • http://alodelamimi.com/uploads/1/3/0/5/130550873/4766160.pdf
    • http://mykindoffamily.com/uploads/1/3/0/6/130620791/gugirejopone_kodafavoxozi.pdf
    • http://shedhuntingdogs.com/uploads/1/3/0/6/130620755/60a9c6ed5b08.pdf
    • http://elliottestes2017.com/uploads/1/3/1/3/131379540/eef4a7a649.pdf
    • http://createdinfaith.com/uploads/1/3/0/2/130270761/7daf52c.pdf
    • http://eatsleephike.net/uploads/1/3/0/7/130776779/jajigevexawiteredovo.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_off00006a38.bin
8f5a60cb41740d3e419a13a360f57fb7f9298d8297834ab272a17b1cbed30de0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A38 8680 bytes

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