Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c16a289567ae27…

MALICIOUS

PDF

52.8 KB Created: 2020-03-26 01:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 841925a1a49b1e1e3daa088eca7675d1 SHA-1: 03906d6e313d07ac059d67d11c05e97cd28a7d44 SHA-256: c2c16a289567ae27d961a3a3bfc9b4dcec0e65e6457ea776b1c1a41edabf7c49
62 Risk Score

Malware Insights

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

The PDF file was generated by wkhtmltopdf and contains a large number of external links, indicating a potential SEO link farm or a distribution point for malicious content. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this malicious intent. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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://jvlifting.com/uploads/1/3/0/4/130476313/130476313.html#ecuacion+dela+recta+dada+por+dos+puntos
    • http://auto-aero-investments.com/uploads/1/3/0/7/130738806/8722279.pdf
    • http://mywedddingflowerstoronto.com/uploads/1/3/0/6/130605255/c9e9f39bf8d.pdf
    • http://www.aconstantblessingbirthservices.ca/uploads/1/3/0/8/130814250/2e51a643bd3cc.pdf
    • http://jennytheriault.com/uploads/1/3/0/8/130814460/cc4cf0c0d71e59.pdf
    • http://patriotschoice.org/uploads/1/3/0/7/130775503/13e6608bff92.pdf
    • http://tuknikgs.com/uploads/1/3/0/3/130323707/wurelurumarivi.pdf
    • http://melissasmith4camasmayor.com/uploads/1/3/0/6/130604645/maxukevoripe.pdf
    • http://ejaimesscapingandconstructon.com/uploads/1/3/0/4/130490977/baxosizuv_walabiwogav_tiketovija.pdf
    • http://wonderful-tw.net/uploads/1/3/0/5/130588845/gigomu.pdf
    • http://jeelassafa.com/uploads/1/3/0/7/130776734/1022943.pdf
    • http://realwebstack.com/uploads/1/3/0/5/130588921/0d93b3a9393074.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_off00008eeb.bin
c6c0c0660a5abd8b9a2d7f03f48d709d2c09e2bafa792c44d3023e2e5ad7ea9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEB 9124 bytes
font_01_sfnt_off0000b028.bin
75ad5726b260fca9c3b66ca94450239fbc156c1891091fcfcfab965e4b2051b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB028 16376 bytes

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