Malicious PDF — malware analysis report

Static analysis result for SHA-256 8730dd60be46dacc…

MALICIOUS

PDF

38.1 KB Created: 2020-06-12 23:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 902565ad1ca100120147db3340880250 SHA-1: c0fedd81bd6431d67ad3ca4958215fbb218b18a1 SHA-256: 8730dd60be46dacc5fdba33601a9504ef923da257dee7b58df8e309123e4b4c4
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body contains garbled text but also includes some of the URLs, reinforcing the attack pattern. No scripts were extracted, and the primary malicious activity appears to be the distribution of numerous external links.

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://lesliepearcewritescopy.com/uploads/1/3/0/6/130621483/130621483.html#bu+arada+%25C5%259Fark%25C4%25B1+s%25C3%25B6zleri+a%25C5%259Fk+ve+%25C3%25B6l%25C3%25BCm
    • http://mail.rebeccabarberauthor.com/uploads/1/3/1/6/131606024/de50a49219227.pdf
    • http://louvinapartment.net/uploads/1/3/1/3/131379085/3642642.pdf
    • http://wikiwiles.com/uploads/1/3/1/4/131437981/luduxaxetizoniba.pdf
    • https://sinezuve.files.wordpress.com/2020/06/kidafubozilokuxi.pdf
    • https://mowugowewuv.files.wordpress.com/2020/06/98390372708.pdf
    • https://vatanabigu.files.wordpress.com/2020/06/govivimeri.pdf
    • https://gozuwej.files.wordpress.com/2020/06/47878203261.pdf
    • https://zezibadaben.files.wordpress.com/2020/06/wosunalibuwokefowo.pdf
    • https://wafukewo.files.wordpress.com/2020/06/36915612033.pdf
    • https://silujifof.files.wordpress.com/2020/06/546981821.pdf
    • https://lavesuv.files.wordpress.com/2020/06/rogefesagugodojepu.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_off00006588.bin
6f35684a3d0d7243ee51ee668b9f00df470120986fdb66e65c7133c9c9bbb29b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6588 12024 bytes

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