Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a2945520d7502d1…

MALICIOUS

PDF

38.8 KB Created: 2020-04-10 02:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 769c5ffa5ff37f0065d6bd024995da84 SHA-1: e62a168329de0f5927b1f60de564f776c75babac SHA-256: 2a2945520d7502d119cc84dbd9b71c3180b35985cd70c67f98ac134082744145
122 Risk Score

Malware Insights

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

The PDF file was detected as a dropper by ClamAV. It contains a large number of external links, many of which point to similarly structured URLs on different domains. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body itself is largely unreadable but contains references to the external links.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8721726-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8721726-0
  • 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://bombayfrankiecompany.com/uploads/1/3/1/4/131410747/131410747.html#unapproachable+east+3.5+pdf
    • http://pintura-grupovemare.com/uploads/1/3/0/4/130483810/1240100.pdf
    • http://nyimahboles.com/uploads/1/3/1/3/131383720/2473531.pdf
    • http://usbornebookseller.com/uploads/1/3/0/4/130491322/napupi.pdf
    • http://family60.com/uploads/1/3/1/3/131398244/178b1bb3578f8.pdf
    • http://meditatecreatestudio.com/uploads/1/3/1/4/131407493/gidam.pdf
    • http://clawsonhomerepair.com/uploads/1/3/0/6/130639164/5037291.pdf
    • http://aadvantageroofingconsultants.com/uploads/1/3/0/7/130739449/vorit-gexezirajele-wemitadotidub-fivuwe.pdf
    • http://ameritaltours.com/uploads/1/3/1/4/131438416/nuwozoz.pdf
    • http://derekdames1.com/uploads/1/3/0/4/130476555/bukorafefe-wivukiwigebed-juwodaj-mewaxi.pdf
    • http://bldout.com/uploads/1/3/0/6/130603892/monoteli.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_off00006df8.bin
feb2b9aadf790e6283d1511cf2ff1a5305507a51109a964f7ae9a41edffc94cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF8 8416 bytes

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