Malicious PDF — malware analysis report

Static analysis result for SHA-256 a949e3cb92f3958a…

MALICIOUS

PDF

44.4 KB Created: 2020-03-30 14:57:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 01afdaa10d984511da078698908f63d8 SHA-1: 4b9d2cfa1dcba509b31e9e1aded14f7c426829e6 SHA-256: a949e3cb92f3958ad9e8433d72196eeb3d2b58ba7cf2b4f0050eefeb74ab0e8c
92 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique commonly used for SEO spam or to direct users to malicious sites. The ML classifier strongly indicated maliciousness. The document body itself is largely unreadable, but the presence of numerous URLs suggests a redirection or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://alexdanielski.com/uploads/1/3/1/4/131406591/131406591.html#las+zonas+del+quirofano
    • http://boydcountyautomotive.com/uploads/1/3/0/4/130483909/1f2fb13df49aa5.pdf
    • http://lukaczcreative.com/uploads/1/3/0/7/130738870/f06db.pdf
    • http://stuckatthefarmmomma.com/uploads/1/3/0/7/130739405/6fa7132ba4.pdf
    • http://vinepic.com/uploads/1/3/0/7/130776219/1d2662fa7a7.pdf
    • http://bartschcchs.com/uploads/1/3/1/3/131383943/vadogagiwolinafex.pdf
    • http://ericrobertsbuilder.com/uploads/1/3/0/4/130435658/a368bad81d830b.pdf
    • http://actionlearning.nl/uploads/1/3/0/4/130477228/rinedusanusoda.pdf
    • http://dimensionaldifferences.studio/uploads/1/3/0/4/130483550/gawuri_salej_lisolelelam_gewevewo.pdf
    • http://maiermotor.com/uploads/1/3/0/5/130590244/6922981.pdf
    • http://equityhr.com/uploads/1/3/0/2/130291449/7191397.pdf
    • http://jessekaisermusic.com/uploads/1/3/0/5/130588635/3504614.pdf
    • http://audiovisualrights.com/uploads/1/3/1/0/131070051/192573.pdf
    • http://hall-elopement.rominastiebenphotography.com/uploads/1/3/0/8/130874305/delanonu.pdf
    • http://pofvcall.com/uploads/1/3/0/2/130289246/lowogivixuwasu_motozinafox.pdf
    • http://emmycodes.com/uploads/1/3/0/5/130588377/c6a70c.pdf
    • http://crazybeautifulessentials.com/uploads/1/3/0/6/130640232/tetiruw.pdf
    • http://stmaxens.com/uploads/1/3/0/5/130589036/2d8af.pdf
    • http://thesmashmedia.com/uploads/1/3/0/6/130640088/99c2a2d290a.pdf
    • http://toyshopreviews.com/uploads/1/3/0/6/130620382/kikedupava.pdf
    • http://fheyouthcheer.net/uploads/1/3/0/7/130738997/zivujonazotavos-koxuj.pdf
    • http://trustandfix.com/uploads/1/3/0/3/130379430/34dfcb26f41.pdf
    • http://s-randolph-photo.com/uploads/1/3/0/5/130551625/1854252.pdf
    • http://mdraketherapy.net/uploads/1/3/0/5/130550901/wakivufep_gegepiruze_lulepizejas.pdf
    • http://goodemountainmemories.com/uploads/1/3/0/6/130621084/xivareraguperop.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_off0000833c.bin
126e35844b85132b7a222de2a5caa059410c8657e603999454cd7d4bd5d8af06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x833C 8580 bytes

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