Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8324ca59541e7de…

MALICIOUS

PDF

44.7 KB Created: 2020-04-22 21:50:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 997bb61a2991b349e9833657b34ff300 SHA-1: c3e3420f16cc53ace81dd20200463d05c9092bc4 SHA-256: e8324ca59541e7de7542df862b05527adbac89de75277c443b938f2f34d152ee
92 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO spam or redirecting users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates a large number of external links, suggesting a link farm or distribution network. The document body, though partially corrupted, contains a URL that appears to be part of this network. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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://magnoliastravelandtouradventures.com/uploads/1/3/0/2/130288439/130288439.html#como+se+dice+tour+guide+en+ingles
    • http://workspaceridge.com/uploads/1/3/0/5/130550782/11490bb50a52fe.pdf
    • http://beaconancestry.com/uploads/1/3/1/3/131379246/mofaluvanefu.pdf
    • http://baerenklasse.de/uploads/1/3/0/8/130873846/f2d0e5c24.pdf
    • http://professorfarms.com/uploads/1/3/0/7/130740022/zilulawa-lunapurori-dipesaba.pdf
    • http://sweetteyscatering.com/uploads/1/3/0/6/130604368/makekato_surifepoworu_kenewibogugonon_nuzaxutuf.pdf
    • http://lourad.com/uploads/1/3/0/6/130604048/sapasomagotobog-suzanenujim-dejax.pdf
    • http://sweetteyscatering.com/
    • 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_off000083b3.bin
9c50b0fac6fafccaf742d5652e64001c684e20588562e90b8c921f1bbc499c34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83B3 9568 bytes

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