Malicious PDF — malware analysis report

Static analysis result for SHA-256 4158ff7624cb7874…

MALICIOUS

PDF

44.6 KB Created: 2020-06-03 13:32:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42b851fb01ba34542a2622650be34deb SHA-1: c3db052a9781ca255fcb441f2da98483289e5d5b SHA-256: 4158ff7624cb7874522bfb7176f2913343a0143ce37c6cd3cc7fd4fac1194356
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links, such as http://plazomatic.com/uploads/1/3/0/5/130588550/130588550.html#flora+y+fauna+de+tailandia, suggest a link farm or SEO spam campaign designed to drive traffic to potentially malicious or low-quality content. The document body, though heavily obfuscated, contains references to "Flora y fauna de tailandia" and the authoring application, consistent with this type of lure.

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://plazomatic.com/uploads/1/3/0/5/130588550/130588550.html#flora+y+fauna+de+tailandia
    • http://coachspain.es/uploads/1/3/0/2/130287937/pipozitewojubiwafafe.pdf
    • http://hodson-cacho.com/uploads/1/3/0/5/130540700/mepevajuvika-xisazodufufoke-direnokukuwoku.pdf
    • http://electricstagehome.com/uploads/1/3/1/4/131483293/4197353.pdf
    • http://sugarcrowncookies.com/uploads/1/3/1/3/131381891/e103854f20b8.pdf
    • http://riversideredsoxjfc.co.nz/uploads/1/3/1/4/131406252/827e244c.pdf
    • http://plazomatic.com/uploads/1/3/0/5/130588550/terms.html
    • http://plazomatic.com/uploads/1/3/0/5/130588550/dmca.html
    • http://plazomatic.com/uploads/1/3/0/5/130588550/policy.html
    • http://hodson-cacho.com/up
    • https://porugisi.files.wordpress.com/2020/05/warewesigejekuguparaxu.pdf
    • https://belojukoxoja.files.wordpress.com/2020/06/63551020317.pdf
    • https://mobulozasa.files.wordpress.com/2020/05/navogafozoz.pdf
    • https://mixusobaso.files.wordpress.com/2020/05/29926910665.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_off0000810e.bin
2fdff3cd09add115bb26403f483bcb81967e0ff36c04c19e278da769ec1fd036		 pdf-font-stream PDF embedded font (sfnt) at offset 0x810E 11700 bytes

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