Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c9ef08d9407bdb2…

MALICIOUS

PDF

71.4 KB Created: 2021-06-29 17:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: dfbf7f2f79ae7fec5cf16960af041a96 SHA-1: 78cac7ee99998a6ace88c304801f041cd4436e4f SHA-256: 2c9ef08d9407bdb25724acad79db7c1726e9be851b3ff8ad646adb2d59c2e17d
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected as a phishing trojan by ClamAV. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to compromised WordPress sites. These links are likely intended to lure users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4729

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://intervalhousehamilton.org/ckfinder/userfiles/files/2420708247.pdf
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160728ee382b39---48585879572.pdf
    • https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/11bb6131acba9433c42b6eadd2840965/49208624989.pdf
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16075d9fc11b04---19700936730.pdf
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081bab4557fc---tolubifuv.pdf
    • https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/d585656f5c57e78ec63e5a68ce2a93c0/76789618673.pdf
    • https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/mlk052nrl2i9dc6244h6gd0874/nufebe.pdf
    • http://www.nomorcantikspesial.com/file/47783314703.pdf
    • https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/novmha5402bk9q0e38of67rvvf/26603176891.pdf
    • http://brandnewgoods.net/userfiles/file/53285122552.pdf
    • http://rydelko.pl/userfiles/file/wolurupekabafusojoze.pdf
    • http://fxmeat.com/upload/file/b108df3673163783d58c181a20191a63.pdf
    • https://arte-salon.ru/upload_picture/rivepateromiz.pdf
    • https://al-farh-iq.com/upload/userfiles/file/72208406146.pdf
    • http://ats-dz.com/userfiles/file/13605351324.pdf
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160764b768c279---kifiwa.pdf
    • https://cahayaapi1.com/contents//files/98751718555.pdf
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca51c8dc21---62945971154.pdf
    • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b66b588104bbad4580f86b8923029a93/60400799084.pdf
    • http://eaeocs.com/clients/c/c7/c75ed17bfa54634cfc1039f1b599a7e7/File/64087869997.pdf
    • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16086bac7147ca---zezufofotibim.pdf
    • http://93564497.com/userfiles/jijagisotazuxavujutiwir.pdf
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa8898c013---83924259115.pdf
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609dcb1c63d02---34642726578.pdf
    • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/14unctajlnfs079bct40mrol1ilbu3i5/zipemegomuxusonadaxeb.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=animal+crossing+new+leaf+nds+rom

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