Malicious PDF — malware analysis report

Static analysis result for SHA-256 833e704aec60a4e2…

MALICIOUS

PDF

42.4 KB Created: 2020-04-15 22:10:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d2f017829fddf9901aadd957e00e95ef SHA-1: e0e051fb361c6ff97db1441cfa81229609146b52 SHA-256: 833e704aec60a4e22da44760d6009a9f5caf480cba71ede32fc9effa0de75977
130 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO poisoning tactic. The ClamAV detection 'Pdf.Dropper.Agent-8964983-0' and the presence of multiple unknown URLs strongly indicate malicious intent. The document body text, though heavily obfuscated, contains a URL that appears to be a lure for downloading software, aligning with the dropper heuristic.

Heuristics 5

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8964983-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8964983-0
  • 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://lrwildblazacricketbats.com/uploads/1/3/0/6/130620986/130620986.html#bluestacks+32+bit+windows+xp
    • http://binarysv.com/uploads/1/3/0/2/130270872/81649e769d59c.pdf
    • http://garagardoa.com/uploads/1/3/0/5/130544313/rekos.pdf
    • http://divaljewelboutique.com/uploads/1/3/0/2/130273842/0a05a.pdf
    • http://mindyourownmindfulness.com/uploads/1/3/0/6/130620556/dd673d3.pdf
    • http://outsourceandgetrich.com/uploads/1/3/0/3/130323554/pibijofe.pdf
    • http://etsitoutestpossible.com/uploads/1/3/0/7/130776158/9f617b0d9.pdf
    • http://outsourceandgetr
    • 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_off00007e9f.bin
26462c5232803e239283f282c928519da643affb9acd58684dba4575d0abc9cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9F 8164 bytes

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