Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b36dcb8f8bd0e1…

MALICIOUS

PDF

34.4 KB Created: 2020-05-17 10:14:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d4ec002057324d2d94eb2d97bd72012 SHA-1: 34961d791e8e618e809229c55a240ec8d2d79c4b SHA-256: e2b36dcb8f8bd0e10698f5ce98c19fa3835f81bfe7033ea0727ad89fa4bd010b
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body contains garbled text and a URL related to 'Metformina para que serve emagrece', suggesting a deceptive lure. The primary function appears to be directing users to a network of linked websites, likely for SEO spam or to host further malicious content.

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://kohno-corp.com/uploads/1/3/1/8/131871597/131871597.html#metformina+para+que+serve+emagrece
    • http://ia-ca.org/uploads/1/3/0/2/130273753/766659309d.pdf
    • http://dreamrunners.net/uploads/1/3/0/7/130776141/biruxefi_silapugapuri_jepuse.pdf
    • http://bouncyjumper.com/uploads/1/3/1/3/131379402/wozefowewumob.pdf
    • http://quicktakeoff.com/uploads/1/3/0/5/130539944/15a6e1f1.pdf
    • http://unishapes.net/uploads/1/3/0/2/130272290/5599824.pdf
    • http://peterbaugh.com/uploads/1/3/0/2/130272506/kixatosulazor_zisoropupit_jugajamakozuw_dopaxigepiw.pdf
    • http://makeemmiss.com/uploads/1/3/0/5/130588333/4402944.pdf
    • http://aberdeenmortgagegroup.com/uploads/1/3/0/5/130551795/9d14c13bc.pdf
    • http://erielimoservices.com/uploads/1/3/1/6/131606155/6902930.pdf
    • http://melaniesarazin.com/uploads/1/3/1/4/131453649/vezefofakiwoxasa.pdf
    • http://lauren-mitchell.com/uploads/1/3/1/4/131454501/vapesikanaju_zurenofalisusu.pdf
    • http://scwaterfrontworks.org/uploads/1/3/0/5/130539908/5660376.pdf
    • http://williambirtellrealestate.net/uploads/1/3/0/7/130776223/0e07163f.pdf
    • http://newwatersgroup.org/uploads/1/3/1/4/131454986/8645082.pdf
    • http://meditationcarmel.com/uploads/1/3/1/8/131856103/2180133.pdf
    • http://saltyfashionshop.com/uploads/1/3/0/5/130541662/rexuba.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_off0000599a.bin
a7a577eebd39bc9a1fcbfffae5a19f6b11f2393147f51367dda6762e0b151605		 pdf-font-stream PDF embedded font (sfnt) at offset 0x599A 10780 bytes

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