Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03e57c55e167f59…

MALICIOUS

PDF

41.3 KB Created: 2020-04-13 03:54:50 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ffa6e7bed34ce92cc99a94a88751f87d SHA-1: 602ce6583e10fca4d4048e4db1f4cb6724bdf90f SHA-256: e03e57c55e167f59a2e0cd05e90fbcf85bf9b141324f86db4cd55bddce9ea0d7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document was identified as malicious due to a heuristic detecting a large number of external links, characteristic of a link farm or phishing lure. The document body contains garbled text and references to 'wkhtmltopdf', suggesting it was programmatically generated. The primary attack pattern involves directing users to a multitude of external URLs, such as http://montanapurewood.com/uploads/1/3/0/9/130969963/130969963.html#organisms+in+the+phylum+annelida+are+protostome+or+deuterostome, which likely host malicious content.

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://montanapurewood.com/uploads/1/3/0/9/130969963/130969963.html#organisms+in+the+phylum+annelida+are+protostome+or+deuterostome
    • http://paradoxbarbers.com/uploads/1/3/0/8/130813876/fesofaziduza.pdf
    • http://viamediapromos.com/uploads/1/3/0/7/130740183/bujinukebumi.pdf
    • http://worldmarblegranite.com/uploads/1/3/1/6/131607278/rigaxudumo.pdf
    • http://skspackaging.net/uploads/1/3/0/5/130551065/febomikavetumub-xuveme.pdf
    • http://viamediapromos.com/uploads/1/3/1/4/131437604/7971145.pdf
    • http://through-the-eyes-of-another.com/uploads/1/3/0/4/130476669/wovewivepitalonapon.pdf
    • http://petitesilesdefrance.fr/uploads/1/3/1/4/131407253/vivalemajofuxopowube.pdf
    • http://gem-empire.com/uploads/1/3/0/5/130551880/2644165.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063ac.bin
369523d1495db3648c45e827f7cc6039275ca47ab18da769ad30d5034e199793		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63AC 8056 bytes
font_01_sfnt_off000082f4.bin
da097a8c459adbfdf1b1d97412e41569b305acf822c6e113ff3e46e38a168572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82F4 16224 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.