Malicious PDF — malware analysis report

Static analysis result for SHA-256 b862843e33231cf5…

MALICIOUS

PDF

35.2 KB Created: 2020-06-15 05:42:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ee638ca62e030bf51415a96f589e6ee SHA-1: 872ada48c1afe2d38515cfb5bac0ba53192d9753 SHA-256: b862843e33231cf5674066e3e36b00f4540355f3dfeaf57d6eff61aebca0f178
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, a technique often used for SEO manipulation or to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm. The document body is heavily obfuscated, but the presence of URLs like 'http://encore00067.voyagerwebsites.com/uploads/1/3/0/7/130739405/130739405.html#sfa+cable+guide' and others points to a malicious intent to redirect users to potentially harmful 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://encore00067.voyagerwebsites.com/uploads/1/3/0/7/130739405/130739405.html#sfa+cable+guide
    • http://emilyaphotodesign.com/uploads/1/3/1/4/131410939/1012805.pdf
    • http://himcodingexpert.com/uploads/1/3/0/3/130323415/tisikuwukutij.pdf
    • http://greenroomtheatrecompany.com/uploads/1/3/0/5/130538996/pesupivexekifi.pdf
    • http://greencard-attorney.com/uploads/1/3/1/3/131379041/7966331.pdf
    • http://softsensationsonline.com/uploads/1/3/0/3/130313215/mekituba.pdf
    • http://sproutingwithsadie.com/uploads/1/3/0/8/130814843/6821263.pdf
    • http://mun4all.org/uploads/1/3/1/8/131856052/bewobela.pdf
    • http://iheartdoterraoils.com/uploads/1/3/0/5/130551058/nikode-funeg-fulores-muniranubemajo.pdf
    • http://general1948.com/uploads/1/3/1/3/131383383/1453577.pdf
    • https://nexufig.files.wordpress.com/2020/06/51987438295.pdf
    • https://nofosepeji.files.wordpress.com/2020/06/74160942457.pdf
    • https://saziwiri.files.wordpress.com/2020/06/jotogamevuniget.pdf
    • https://kemetax.files.wordpress.com/2020/06/110907805.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_off00005fd9.bin
8e40e314b3bce05347a001861a1b27b9e2bc56ae1c7bfa32e67d34abf28f0186		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD9 9996 bytes

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