Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d3d16f25f500581…

MALICIOUS

PDF

38.9 KB Created: 2020-06-07 02:45:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 729641b8f8b923d84ceb5c9fa79a1cf6 SHA-1: 7f107fa4f38a1f7fd152aebdcd24439531a2f88c SHA-256: 3d3d16f25f500581316ae01a8b02725fee575801ed05b2daec184665aafb06da
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on numerous domains, suggesting a link farm or SEO manipulation tactic. The embedded document body also contains one of these URLs, indicating a direct attempt to redirect the user. No scripts were extracted from this sample.

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://cpcalendars.enchantedcakesandtreats.com/uploads/1/3/0/2/130289474/130289474.html#sfm+funtime+freddy
    • http://pte.rigbytrojans.org/uploads/1/3/1/6/131606745/7892735.pdf
    • http://zihao-li.com/uploads/1/3/0/7/130776656/69b4875.pdf
    • http://info.fenixohjelmapalvelut.fi/uploads/1/3/1/3/131380183/sizovefuxabojakilun.pdf
    • http://mail.gartln.at/uploads/1/3/1/3/131381924/bosamagiranegir.pdf
    • http://andrewdpaterson.com/uploads/1/3/0/6/130622005/fafum_zijuvaso_xavitijudaf_xoparoputizod.pdf
    • http://latoniachristianchurch.org/uploads/1/3/1/6/131637797/gubevedu.pdf
    • http://mtsmedicaltranscriptionservice.com/uploads/1/3/0/8/130873856/a5539d4fe3fd.pdf
    • http://helen-dogwalking.co.uk/uploads/1/3/0/2/130287278/pojiwapig_panajumoza_kosorox.pdf
    • https://nenusanej.files.wordpress.com/2020/06/xevubidarenutokuxuzed.pdf
    • https://duxogij.files.wordpress.com/2020/06/70573845130.pdf
    • https://zoxefalu.files.wordpress.com/2020/06/10272765516.pdf
    • https://xipewatataz458399044.files.wordpress.com/2020/06/dawejetodaxuzewop.pdf
    • https://negoges408440645.files.wordpress.com/2020/06/rurelasanetewokusu.pdf
    • https://nevujulanodu997346256.files.wordpress.com/2020/06/75967957359.pdf
    • https://zimorujiwek.files.wordpress.com/2020/06/bisini.pdf
    • https://wedadisakab.files.wordpress.com/2020/06/20149679431.pdf
    • https://dawileva.files.wordpress.com/2020/06/dajilimukamodelumul.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_off00006e22.bin
0496792368497c54ff6e2a2add7d6a2f615beb981596c17437ed4c403ec104ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E22 10056 bytes

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