Malicious PDF — malware analysis report

Static analysis result for SHA-256 decac808a3aae242…

MALICIOUS

PDF

29.3 KB Created: 2020-06-02 13:56:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70b448c462af64cdb6329af613e46f20 SHA-1: 25c510df80d4ceb9e03f730ea52c8dcb88559b91 SHA-256: decac808a3aae242e956707e62ca38ec0b314ff85443587a748ad87dc98737f5
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF documents hosted on different domains, suggesting a link farm or redirection scheme. The document body contains obfuscated text and URLs, including 'http://2uh.undesirable.us/uploads/1/3/0/8/130874113/130874113.html#the+last+of+us+rule+34' and 'http://luxwlex.com/uploads/1/3/0/2/130289411/f549720bf515.pdf', which are likely intended to lead users to malicious content or phishing sites.

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://2uh.undesirable.us/uploads/1/3/0/8/130874113/130874113.html#the+last+of+us+rule+34
    • http://luxwlex.com/uploads/1/3/0/2/130289411/f549720bf515.pdf
    • http://74-123-75-179.mgwnet.com/uploads/1/3/1/4/131406945/xajusonemelozok_jamalepirosuko.pdf
    • http://yvettewjones.com/uploads/1/3/0/7/130739878/2881092.pdf
    • http://shop.softechinc.net/uploads/1/3/0/9/130969334/638a690a99.pdf
    • http://uk.wereldbuur.nu/uploads/1/3/1/4/131406614/bda1b77ff35.pdf
    • http://hdpmarriottportfolio.com/uploads/1/3/0/6/130604391/goxis.pdf
    • http://2uh.undesirable.us/uploads/1/3/0/8/130874113/terms.html
    • http://2uh.undesirable.us/uploads/1/3/0/8/130874113/dmca.html
    • http://2uh.undesirable.us/uploads/1/3/0/8/130874113/policy.html
    • https://mizarexil.files.wordpress.com/2020/06/gusikojubupesega.pdf
    • https://pokavin.files.wordpress.com/2020/05/xotavisisu.pdf
    • https://zudatavolobo.files.wordpress.com/2020/05/xoxakajalufatikivesu.pdf
    • https://nimawana.files.wordpress.com/2020/05/lolisimezagibosojem.pdf
    • https://murulejam.files.wordpress.com/2020/05/87557643224.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_off000048f0.bin
fb8ec49664316deb998e86eeec26c5742655a6008db68480e75d03a8509fb265		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48F0 9736 bytes

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