Malicious PDF — malware analysis report

Static analysis result for SHA-256 f42061b7f1894cf6…

MALICIOUS

PDF

54.9 KB Created: 2020-03-29 08:14:14 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8f64485f4903c72270f9e4694e26fca5 SHA-1: fcc8c7d8d217330a025599204a2a376061ee7f61 SHA-256: f42061b7f1894cf67c5b0063ace099d1334731d9fc57ed0f6f0d6d219f325ac7
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, identified as a PDF SEO link farm. The embedded URLs point to various domains, suggesting a tactic to artificially inflate search engine rankings or to distribute further malicious content. 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://richter-family.rominastiebenphotography.com/uploads/1/3/0/5/130539679/130539679.html#emprendedores+en+mexico+2019
    • http://sangchoistudio.com/uploads/1/3/0/5/130588388/lilovid.pdf
    • http://ezeicr.org/uploads/1/3/0/5/130588998/6589535.pdf
    • http://grahamslife.com/uploads/1/3/0/7/130775103/8897954.pdf
    • http://pornpurity.com/uploads/1/3/0/5/130541000/7273552.pdf
    • http://carsonnissanblog.com/uploads/1/3/0/5/130543816/d141794bf416e9.pdf
    • http://tnlionslowvision.org/uploads/1/3/0/9/130969297/ea2e902e07d50.pdf
    • http://cindyismyagent.net/uploads/1/3/0/3/130313132/mobofawinekovox.pdf
    • http://constitutionsteward.org/uploads/1/3/0/2/130291694/piwez.pdf
    • http://campcreekranch.com/uploads/1/3/0/5/130589399/kikim-mumisasixovajo-movutogijez-mumujoletajak.pdf
    • http://krugprecision.com/uploads/1/3/0/6/130604759/2667710.pdf
    • http://titanpropertymgmt.com/uploads/1/3/0/8/130873735/wimidibukejuxu_puxega_fiwajalate_pabefaropip.pdf
    • http://readingrescue.net/uploads/1/3/1/0/131070842/1e3ba.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_off0000ab1c.bin
6e4ae2a0522ddb480d539ad6d8d71006eaa85c3c82450d66cb61a5df1b4fe7f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB1C 9288 bytes

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