Malicious PDF — malware analysis report

Static analysis result for SHA-256 f19f4b4be7a01894…

MALICIOUS

PDF

45.7 KB Created: 2020-04-12 22:51:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a813105f174781d824ba9bf3aa96586d SHA-1: e38daef21d2ec53346f18d6f30b051ea40178107 SHA-256: f19f4b4be7a018942b3563770ee641ba84d7d444c969cb53a22111930fab017b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though heavily obfuscated, contains a reference to 'Bible verse with reflection english' and a URL that matches one of the extracted links. This suggests a lure to a website that likely hosts malicious content or phishing pages. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://wildwonderfulyou.com/uploads/1/3/0/6/130639947/130639947.html#bible+verse+with+reflection+english
    • http://simmonswagoner.com/uploads/1/3/0/5/130546497/mukeresufuk.pdf
    • http://larrystravel.com/uploads/1/3/1/1/131163564/1666536.pdf
    • http://judithgarvinbickel.com/uploads/1/3/1/4/131438279/pefili.pdf
    • http://barcorealtyofaquia.com/uploads/1/3/0/5/130551512/808835.pdf
    • http://fortembiotech.net/uploads/1/3/0/9/130969265/mazovub-bajubixa.pdf
    • http://schooloftheenlightenedbean.org/uploads/1/3/0/7/130740117/1300406.pdf
    • http://jeremycrawfordfitness.com/uploads/1/3/0/6/130620456/5987dff939.pdf
    • http://mybraincoach.org/uploads/1/3/0/5/130551461/5292430.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_off00008b6c.bin
1e60837aecf32da54a03fa9bd8d39cf4a153311b60c28eeff628089f002c4987		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6C 8232 bytes

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