Malicious PDF — malware analysis report

Static analysis result for SHA-256 3177db38c3424111…

MALICIOUS

PDF

33.9 KB Created: 2020-06-04 02:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 419ea714498d92f15b8ad9c186219496 SHA-1: f7fa6aae0994252aa359d29e0a60f99292d5fe75 SHA-256: 3177db38c3424111ee5d9ed9e714d5c2e3044efec0d0cd3d33f7b28b07e322d9
70 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 to other PDF files, a technique often used for SEO spam or to distribute malicious content. The document body, though heavily obfuscated, contains a URL that points to an HTML file, and the heuristics confirm a PDF URI and a link farm. The presence of a 'download button' lure further supports a malicious intent to redirect users to potentially harmful content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://thelunadahlia.com/uploads/1/3/0/6/130604945/130604945.html#god%2527+s+secrets+only+hebrew+can+reveal
    • http://dustydiamondscleaningservice.com/uploads/1/3/0/5/130539348/2962131.pdf
    • http://creativerecycling.org/uploads/1/3/0/4/130476065/4f344c.pdf
    • http://mx.cattlekinginn.com/uploads/1/3/0/7/130738781/6125047.pdf
    • http://arcadia-rv.com/uploads/1/3/0/6/130604892/2b7d0d.pdf
    • http://xmarcthespottraining.com/uploads/1/3/0/6/130621503/sotile_zavawapije_tizotatokesapig_jurezewikotuge.pdf
    • http://bradjroberts.com/uploads/1/3/0/5/130545434/bufekunefep.pdf
    • http://wanderlust-ae.com/uploads/1/3/0/4/130476192/pafisixus_kevid_lowifolirezozi_fipimuxinok.pdf
    • http://lilybelleexotics.com/uploads/1/3/1/4/131407459/zowavunipolodezetix.pdf
    • http://mta-sts.mail.hinesburgartistseries.org/uploads/1/3/0/2/130270834/suvufeg.pdf
    • http://smartleveltable.com/uploads/1/3/0/6/130639221/488576.pdf
    • http://wilsonpuppies.com/uploads/1/3/1/8/131856666/5303615.pdf
    • http://thelunadahlia.com/uploads/1/3/0/6/130604945/terms.html
    • http://thelunadahlia.com/uploads/1/3/0/6/130604945/dmca.html
    • http://thelunadahlia.com/uploads/1/3/0/6/130604945/policy.html
    • https://gupadolajiwu.files.wordpress.com/2020/06/76624034860.pdf
    • https://tufegutoxa.files.wordpress.com/2020/06/62030203816.pdf
    • https://wisixabapux.files.wordpress.com/2020/06/74505539245.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_off00005763.bin
35897c51c604b5f6a047ccd72bd62bc4a3295ef3a198c1be2d062769dda03ae0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5763 10604 bytes

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