Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd1527ebaae040e…

MALICIOUS

PDF

38.3 KB Created: 2020-03-29 01:48:54 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7d94e0c47591071b41e6b4302e91e27d SHA-1: f2168f20a99fafddee088b814bedf82872aa5205 SHA-256: 3cd1527ebaae040ebf103d1f52e22a50b70d5d320857269dc5a88fdc5319deee
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are dynamically generated and point to PDF files with numeric slugs. This pattern is indicative of a link farm or SEO spam campaign designed to drive traffic to potentially malicious sites. The document body, though heavily obfuscated, contains references to a recipe and the authoring tool, suggesting a lure to disguise the malicious intent. The primary attack pattern involves directing users to external URLs, likely for further exploitation or phishing.

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://bailigongyulechengshoujiban.br3h.com/uploads/1/3/0/2/130289734/130289734.html#toastmaster+bread+maker+pizza+dough+recipe
    • http://cpanel.websitesandsocialmedia.com/uploads/1/3/0/2/130288551/lozumufalibijuganeb.pdf
    • http://www.sosassyonline.com/uploads/1/3/0/7/130740458/wodine.pdf
    • http://redphoenixevents.com/uploads/1/3/0/4/130483178/gofexupimabebujajewo.pdf
    • http://horizonhoops.com/uploads/1/3/0/5/130590273/3100081.pdf
    • http://midmichyouthultimate.com/uploads/1/3/0/8/130873923/9880383.pdf
    • http://belladesgagnes.com/uploads/1/3/0/6/130639055/6164520.pdf
    • http://45northfarm.com/uploads/1/3/0/3/130379115/4574964.pdf
    • http://easterincarmichael.org/uploads/1/3/0/6/130604986/nomupezolak.pdf
    • http://www.getnoticedwinfans.com/uploads/1/3/0/5/130545698/tavufigumigekod_xukepomaxes_tuxawidoxusivuv_zexajiwadaro.pdf
    • http://elevatenslay.com/uploads/1/3/0/2/130288383/posejaxekebusuf.pdf
    • http://fosstonfiberfestival.com/uploads/1/3/0/7/130739560/fopitodevox_refekawomi_fajifojolanali_bozazixusozu.pdf
    • http://xbosak.com/uploads/1/3/0/8/130814492/ravuruxadexojol.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_off00006fa3.bin
9ec48095209dad0dc1036501d493bf3ff79b1b80657f0a79b7fe99cb921d0bf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA3 7520 bytes

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