Malicious PDF — malware analysis report

Static analysis result for SHA-256 b429c9e15b1e479c…

MALICIOUS

PDF

42.3 KB Created: 2020-04-10 00:17:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6dd6cd9811270ba3b4ceff51cc2e3a72 SHA-1: 9303bd2885caa5eaadcd5c90c424e9ce04edf3f3 SHA-256: b429c9e15b1e479c576d2587e3d3cee9baee903129be037018d977e4ed38d3c7
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 to distribute malware or phish for credentials. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm, suggesting the primary purpose is to redirect users to potentially malicious content hosted on numerous domains. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact nature of the linked content.

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://kaiserroofinginc.com/uploads/1/3/0/5/130551206/130551206.html#integrales+dobles+con+coordenadas+po
    • http://maxiandolikessler.com/uploads/1/3/1/0/131070567/dumasire.pdf
    • http://para-science-initiative.com/uploads/1/3/0/6/130604597/5762977.pdf
    • http://denalawncarecontracting.com/uploads/1/3/0/8/130814597/478a08041cd490.pdf
    • http://socialjusticewitch.com/uploads/1/3/1/4/131437317/d14ee.pdf
    • http://projectpve.com/uploads/1/3/0/6/130639646/wizofoker-jupisekezejosog-kapekigunilaki-povixupot.pdf
    • http://yolostonehemp.com/uploads/1/3/1/4/131406182/9338469.pdf
    • http://papilloneries.com/uploads/1/3/0/6/130640145/toxediponep.pdf
    • http://carterculturecreators.com/uploads/1/3/0/8/130813533/logumonevesurelinif.pdf
    • http://kenburch.com/uploads/1/3/0/8/130814402/91d66ec2c2d9aa.pdf
    • http://kotihoitopriimus.fi/uploads/1/3/1/4/131437737/1893840.pdf
    • http://voilaeng.com/uploads/1/3/0/6/130621283/werajatajubo_suvafurutosiwad_buvunigoluz_laforezuvajasaj.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_off00007837.bin
915a42b3d673fa879cd4f88e35ad92b2fb76ada856dca65023c149f04bdcb6b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7837 9644 bytes

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