Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd7890df8e3e9c98…

MALICIOUS

PDF

33.3 KB Created: 2020-03-30 03:21:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6009ad2f6476105dd3c298fa5a04c22a SHA-1: 306a22b550b014846ca0a376c4bf6abf642a2c8d SHA-256: bd7890df8e3e9c9873e43c3b28f00beb7b6b31233f0840c45788e35c1d8a6e26
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are dynamically generated and point to unrelated domains. This behavior is indicative of a link farm or SEO spam campaign designed to drive traffic to potentially malicious sites. The document body contains text related to a 'Hypertherm max 30 plasma cutter', which appears to be a lure to attract clicks on the embedded 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://74-123-76-231.mgwnet.com/uploads/1/3/0/6/130604111/130604111.html#hypertherm+max+30+plasma+cutter
    • http://companionsofthehumanspirit.org/uploads/1/3/0/5/130589151/vuzarakul-jexidalepukefop-dotaxenagude-radikilalewuta.pdf
    • http://resibuenasvibras.com/uploads/1/3/0/3/130323251/b148be37db9e07.pdf
    • http://wazyshairsalon.com/uploads/1/3/0/6/130604595/fa77cf9a45a75.pdf
    • http://hairandmakeupbysusana.com/uploads/1/3/0/3/130323461/5ad3696288203e.pdf
    • http://liquorlawsvt.net/uploads/1/3/0/5/130590410/15543c467.pdf
    • http://artisantrades.net/uploads/1/3/1/1/131164093/wuzel_sokimatojuxupip_lakowis_vodureli.pdf
    • http://campbellbook.com/uploads/1/3/0/7/130775405/rajulurozew-vapuxemusib-satunafufu-mofaxoxisamapu.pdf
    • http://andy-devane-architect.com/uploads/1/3/0/6/130604815/6553339.pdf
    • http://distrix.biz/uploads/1/3/0/4/130436136/7ede1bb77275.pdf
    • http://pikkuitalia.com/uploads/1/3/0/2/130288565/5018388.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_off00005883.bin
e37b1539b2fd4443b8aae049fb4a2b301b87ae849dc9be1716c1e599d2790585		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5883 8324 bytes

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