Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d27606f4e8ea7d9…

MALICIOUS

PDF

41.2 KB Created: 2020-04-12 12:23:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 534be36be80ad9f398758b29b7db0739 SHA-1: 26638e23eb95b1964c353c75fc203f1df074514e SHA-256: 2d27606f4e8ea7d92cdf5b0963c2c02a92f2b54a568d4670136beff4678a341e
62 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a common tactic for SEO spam or phishing. The document body, though heavily obfuscated, contains a URL that appears to be a lure for information related to pressure washer repair. The presence of a large number of external links, many hosted on similar subdomains, suggests a link farm or a coordinated effort to drive traffic to potentially malicious 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://shuaigroup.org/uploads/1/3/0/6/130603760/130603760.html#snap+on+pressure+washer+2000+psi+repair
    • http://masterbuildertexas.com/uploads/1/3/0/3/130323554/38bbc62da.pdf
    • http://seuratechnologies.net/uploads/1/3/0/6/130639201/0315229d131d6b.pdf
    • http://aligrandhall.com/uploads/1/3/1/0/131069915/2bda4e2.pdf
    • http://utilistream.com/uploads/1/3/0/7/130739564/5832424.pdf
    • http://paulalewisot.com/uploads/1/3/0/4/130488092/molepadopelilun_gavenexikoxek_tamotefejofinaf.pdf
    • http://nobullshitvideos.com/uploads/1/3/0/9/130969591/warepusidetavarefub.pdf
    • http://wildcat-wifi.com/uploads/1/3/1/4/131453249/5010951.pdf
    • http://techknowledgeu.com/uploads/1/3/1/4/131406809/1255842.pdf
    • http://nafym.org/uploads/1/3/0/6/130604862/6f5952.pdf
    • http://ottercoffeevergas.com/uploads/1/3/0/8/130814735/xatulufupijivubebe.pdf
    • http://playahatersleague.com/uploads/1/3/0/9/130969441/7030086.pdf
    • http://alphamaid.net/uploads/1/3/0/7/130739693/cff2dec8fbfc3.pdf
    • http://federicaitaliano.it/uploads/1/3/0/6/130605083/samomimutodegag.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_off00007992.bin
4e42246a132247d25d43ccdecd4822b4637a10a17e6f4ca154f5f3d902ac26f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7992 8008 bytes

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