Malicious PDF — malware analysis report

Static analysis result for SHA-256 b777b7e38b77c6b4…

MALICIOUS

PDF

42.4 KB Created: 2020-03-21 15:33:02 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7da11d5aa7848f728a46d592a90188a3 SHA-1: 544bc6474db8922ad2f251f3bd8a21710cdd7bcc SHA-256: b777b7e38b77c6b4e07bd58cc43c9b9ad9e61073a1ea76af90744f077671f06b
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to manipulate search engine results or distribute malware. The document body itself is largely unreadable, but the presence of numerous URLs points to a malicious intent related to link farming or redirection.

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://mrlapta.com/uploads/1/3/0/3/130323936/130323936.html#area+41+corteza+cerebral
    • http://mta-sts.mail.simone-gysi.ch/uploads/1/3/0/2/130289185/ce86166.pdf
    • http://robertvore.org/uploads/1/3/0/4/130483577/tagemiz.pdf
    • http://www.wordsinwonderland.com/uploads/1/3/0/6/130620520/f4a59c.pdf
    • http://milesbetter.info/uploads/1/3/0/5/130550925/gukisuzalilod.pdf
    • http://platinumdrycleaners.net/uploads/1/3/0/4/130435772/gatodas.pdf
    • http://kangarooavenue.com/uploads/1/3/0/5/130550768/846b7d6.pdf
    • http://healthhabitsforundergraduates.com/uploads/1/3/0/7/130738731/daxepawesifu-muxumibazadiwa-pakalafanemej.pdf
    • http://principalgneely.com/uploads/1/3/0/6/130604694/dewomufepare.pdf
    • http://citykittyfurniture.com/uploads/1/3/0/5/130543169/bavije.pdf
    • http://polanduncorked.com/uploads/1/3/0/9/130969426/06183e49.pdf
    • http://za1.cz/uploads/1/3/0/6/130604551/gokewoxijono-vunonedokokaxo.pdf
    • http://www.garagedoorrepair-shoreline-wa.com/uploads/1/3/0/2/130272613/5229452.pdf
    • http://neilbuilds.com/uploads/1/3/0/2/130271035/3686541.pdf
    • http://blackbirddesigns.net/uploads/1/3/0/7/130775612/4751238.pdf
    • http://highnetworthquote.com/uploads/1/3/0/4/130436250/2e9ae6c.pdf
    • http://vancouvercounsellors.com/uploads/1/3/0/7/130740189/a896cdd43dc14d9.pdf
    • http://detroitmobilenotary.com/uploads/1/3/0/8/130874670/51b64073.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_off00007cf5.bin
18b50f19c2ce01cf18911a9479a6a52ddcbd97237ed2473b9f8600706448d585		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF5 8356 bytes

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