Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb2054f065829ec…

MALICIOUS

PDF

45.7 KB Created: 2020-03-29 21:57:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 823a9f4c678e555cf16584e14deabe42 SHA-1: b868f47f3e7c363747d6b453f6813ce55881bb07 SHA-256: ceb2054f065829ecd436c65190c3300905aecc04ea435fe101b20e174261ffa3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO spam operation. The document body, though partially corrupted, contains text related to 'Groin hernia ultrasound protocol' and metadata indicating it was generated by wkhtmltopdf, further supporting the lure of a technical document to mask malicious redirection. The primary heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with 'getassuredins.com' being a dominant host. The embedded URLs are likely used to redirect users to malicious content or phishing pages.

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://lamee-dark-version3-de.devsite-1.com/uploads/1/3/0/5/130539102/130539102.html#groin+hernia+ultrasound+protocol
    • http://getassuredins.com/uploads/1/3/0/4/130476469/gegunugew.pdf
    • http://blackhonda.net/uploads/1/3/1/0/131070027/f85878fa1d.pdf
    • http://barrazamaintenance.com/uploads/1/3/0/6/130620594/6376545.pdf
    • http://auraplanning.com/uploads/1/3/0/6/130620659/wenatanavogitaresido.pdf
    • http://southerncharms60.com/uploads/1/3/0/7/130775768/155737.pdf
    • http://laurenhillcounseling.com/uploads/1/3/0/8/130814009/4458461.pdf
    • http://emralliance.org/uploads/1/3/0/3/130379479/2268680.pdf
    • http://stump4trumppac.com/uploads/1/3/0/3/130313203/9051195.pdf
    • http://stagedive.club/uploads/1/3/0/6/130639300/zejufunogivedu.pdf
    • http://blanelectronics.com/uploads/1/3/0/2/130274017/suraxozesepelab_gunagarovuw_mirejadud_zakisijajotutij.pdf
    • http://ericaschristensen.com/uploads/1/3/0/6/130640223/5756137.pdf
    • http://kurtschelkle.com/uploads/1/3/1/3/131383614/lejexetuv_mepaka_fuferuwud.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_off0000887e.bin
dac9377a921503cd9e8cedde2718d14060b7e976592d1d8b3511738b454f9470		 pdf-font-stream PDF embedded font (sfnt) at offset 0x887E 8232 bytes

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