Malicious PDF — malware analysis report

Static analysis result for SHA-256 dccb500892a1aa07…

MALICIOUS

PDF

48.5 KB Created: 2020-04-26 02:45:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5cb4bfd340a91be8610cff7af2e1f72d SHA-1: 1d8f04aa8852f663f445d53b338b40484a9f709a SHA-256: dccb500892a1aa07a42cff204f53183f84fa0dd85937ec6ece85c0707893d776
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, a technique often used for SEO manipulation or to distribute malicious content. The document body, though partially corrupted, contains text related to 'Ncert class 10 history question answers' and references to the wkhtmltopdf tool, suggesting a lure to educational content. The primary heuristic identified a 'PDF_SEO_LINK_FARM' with numerous links hosted on 'mx.onebodywellnesscoach.com' and other domains, indicating a coordinated effort to redirect users. 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://peakathleticsystems.com/uploads/1/3/0/8/130874110/130874110.html#ncert+class+10+history+question+answers
    • http://mx.onebodywellnesscoach.com/uploads/1/3/1/6/131606011/dajizofobutoru-gowinel.pdf
    • http://croyjewell.design/uploads/1/3/1/3/131383790/fojijoti.pdf
    • http://alrjoinery.com/uploads/1/3/1/3/131380341/todujivuseb.pdf
    • http://peteylownotes.com/uploads/1/3/0/7/130738948/kubikikogozigojuf.pdf
    • http://mailingdirectpays.com/uploads/1/3/1/4/131453821/dulabori.pdf
    • http://www.myonlinefashionmary.com/uploads/1/3/0/7/130739663/ladasuva.pdf
    • http://tritonconstruction.org/uploads/1/3/1/0/131070979/popov.pdf
    • http://openin4.com/uploads/1/3/0/7/130739776/gakagesu.pdf
    • http://sweetmissioncookie.com/uploads/1/3/0/7/130738789/furogegabisux.pdf
    • http://anicetomojica.com/uploads/1/3/0/4/130476006/08ffdee2da023.pdf
    • http://unitedmortgageandfinance.com/uploads/1/3/0/6/130621995/2e0033a12cb.pdf
    • http://casabellefille.net/uploads/1/3/0/7/130740378/6083148.pdf
    • http://nativeuniques.com/uploads/1/3/1/0/131070173/622238.pdf
    • http://pilgrimsprogresspublishing.com/uploads/1/3/0/2/130289240/tajose-diditabexapoves.pdf
    • http://nowicca.com/uploads/1/3/1/8/131871488/lidapuzuzo-poxuxilev-mekarodupupi.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_off000095b4.bin
fb7f9a6f2dddbced5e74200214b7ab9634cc6e16eb5408088cd29c0c1c07f288		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95B4 7692 bytes

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