Malicious PDF — malware analysis report

Static analysis result for SHA-256 386443d0cb67a291…

MALICIOUS

PDF

52.5 KB Created: 2021-06-27 21:15:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a6e03b3c655d6d06ef6956d76a4a1399 SHA-1: b316147dcba15d1e6496205e30e1397d3f3e77d3 SHA-256: 386443d0cb67a291ec6653dc487fcf6352be5f6abe6cf67b3623585d6c239441
194 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. It uses an image-only design with a click-outward action, typical of scams that trick users into downloading further payloads. The numerous embedded URLs point to compromised CMS upload directories, suggesting a distribution mechanism leveraging vulnerable websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6164

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 52 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc72dc262b---97325436558.pdf
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/3e8cc1d41442533a96aafbc87305591b/53360620451.pdf
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/e7c8fcdeb6cbd4f230a4ecd46e491f80/63318803386.pdf
    • http://asckhn.com/acskhn/userfiles/file/56809804740.pdf
    • http://greer2001.com/clients/e/ea/ea56749d84c1a2d7db36d2c51c833a37/File/fejunoxibopuvozuba.pdf
    • http://duocmyphamcongty.com/app/webroot/uploads/files/jabebibi.pdf
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dc0a9b850f---buwemose.pdf
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d646466b4---xerezen.pdf
    • https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/46e7ebb57540385fa9f256f5ac39571d/tujekipedorimav.pdf
    • http://kleiberit.ru/files/file/sanadosuwotevigaluzus.pdf
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5d692391c9---30704590250.pdf
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3c722d80b---53143331426.pdf
    • http://gleneaglehoa.org/images/file/gifezixalurujanetuwibuwex.pdf
    • http://aliceinformaticasrl.com/user/pages/votebuv.pdf
    • http://tafgambiatours.com/userfiles/file/17750812206.pdf
    • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16085806af042a---tudaturegiginotuko.pdf
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608ef3a7f3bc4---52730521148.pdf
    • http://meijialx.com/ckfinder/userfiles/files/62737015127.pdf
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160c05936ecfcd---pasajaxirabopizutotatu.pdf
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160767923ca469---muzuduta.pdf
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc2c83a580---bibuxafidimorotakin.pdf
    • http://wsp.pl/userfiles/file/92141508702.pdf
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/a4d9d91da6a52b74ac20492ea4c220a4/12860617351.pdf
    • http://rgn2u.com/userfiles/files/58467312423.pdf
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/ic5prh2arilegvdr0sive62d42/95022607842.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=app+to+save+web+pages+as+pdf

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