Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eae3548b28992ab…

MALICIOUS

PDF

36.6 KB Created: 2020-06-05 22:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87e1a53ec39b1048b5544f3045c55d2a SHA-1: fb4c713ce7e58090dd74739df70abe2a7dfe86e8 SHA-256: 3eae3548b28992abd65780ad88d6eefaf6094f358a8b654c0dca14a92c070dfb
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO poisoning or to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to numerous PDF files hosted on various domains. The document body itself is heavily obfuscated but contains some of the URLs, reinforcing the link farm tactic. No scripts were extracted, limiting the analysis of direct payload execution.

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://zrvcgh.bdgct.com/uploads/1/3/0/6/130621568/130621568.html#hifumi+togo+persona+5
    • http://way-ward.com/uploads/1/3/1/3/131383767/8408570.pdf
    • http://ga400portfoliofinancing.com/uploads/1/3/0/2/130289236/8352709.pdf
    • http://williamsamuelphotography.com/uploads/1/3/0/2/130289236/105316.pdf
    • http://gregoryjosephlujan.com/uploads/1/3/0/9/130969639/6376271.pdf
    • http://moonandbackministries.com/uploads/1/3/1/1/131164557/2064745.pdf
    • http://glowbearcare.com/uploads/1/3/0/6/130605010/sogazu.pdf
    • http://thesavvygirlguide.com/uploads/1/3/0/6/130605179/febenolirujijuleroto.pdf
    • http://kvistmenn.is/uploads/1/3/0/8/130815140/fesiminute.pdf
    • http://rgbcltd.com/uploads/1/3/1/4/131407760/pugid.pdf
    • http://zrvcgh.bdgct.com/uploads/1/3/0/6/130621568/terms.html
    • http://zrvcgh.bdgct.com/uploads/1/3/0/6/130621568/dmca.html
    • http://zrvcgh.bdgct.com/uploads/1/3/0/6/130621568/policy.html
    • https://bazolexadole.files.wordpress.com/2020/06/duvowemuruzatuju.pdf
    • https://mesibef.files.wordpress.com/2020/06/94136446992.pdf
    • https://zumulugumi.files.wordpress.com/2020/06/zukorumamuzifolepekaroxob.pdf
    • https://tufegutoxa.files.wordpress.com/2020/06/dukomi.pdf
    • https://goxiwafiwavi.files.wordpress.com/2020/06/27268806540.pdf
    • https://tugujaza.files.wordpress.com/2020/06/62966312526.pdf
    • https://ladareguk.files.wordpress.com/2020/06/18847731944.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_off00006367.bin
0b3612504e95c1a8bb9d6b28fde2c95c1003d8ff05204b8b92055d2124339ac1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6367 10232 bytes

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