Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ab98de26345a461…

MALICIOUS

PDF

54.4 KB Created: 2021-06-28 07:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 0fd4b42fdc78bbc5324e385d67f9081d SHA-1: 773f42e670a0e1430ea71e73d43df15241c29ffd SHA-256: 3ab98de26345a4619f84d0434a0e4d083959bae6ad483ba41653da98ff69181a
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded links that point to compromised WordPress sites and other potentially malicious domains. ClamAV detected this file as Pdf.Phishing.Trojan, indicating a phishing or trojan distribution attempt. The presence of many external links suggests the document's primary purpose is to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2924

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/l97tqvad2re3rqki2k0bj8da80/23123396834.pdf In PDF document text
    • http://vhktn.at/images/content/files/46675451444.pdfIn PDF document text
    • http://kesherisrael.com/uploadEditor/files/70948055106.pdfIn PDF document text
    • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/f8652d12826e5e54bcdd3d78ce956a38/4715336160.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/u7dppdhct62egk7mcakghss893/44802653646.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608595c0835b7---90006875588.pdfIn PDF document text
    • http://componentcnc.hu/uploads/ckfinder/userfiles/files/dezekiparewegazigob.pdfIn PDF document text
    • https://diedacorporation.net/freesiafiles/file/bapakonitaxofotitozidarij.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160791227421de---47263954817.pdfIn PDF document text
    • http://erbamedica.org/userfiles/files/40776698170.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3004bd94d---dovumisedepuwizodenewu.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac0409cb7a---48713395982.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16087992dd6bd1---15917364126.pdfIn PDF document text
    • http://alliusie.com/userfiles/file/jipajifejal.pdfIn PDF document text
    • https://textolinguisticsolutions.com/upload/editor/file/goxoda.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a43a0c94df3---xabuvezurimuweberewi.pdfIn PDF document text
    • https://avenue102.com/uploads/file/72744193247.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a872a656426---wotuzek.pdfIn PDF document text
    • http://logistra.fr/ressource/site-image/files/66706975931.pdfIn PDF document text
    • http://xiaohecollege.com/d/files/76587890644.pdfIn PDF document text
    • http://texmet.pl/userimages/file/5911855933.pdfIn PDF document text
    • http://activesolutionelectric.com/images/file/5712686833.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/a7ce3aa8fcc263334580ad1b3fce3dd4/96738041036.pdfIn PDF document text
    • https://getracemirates.com/userfiles/files/pedexusozufozojumedikag.pdfIn PDF document text
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/0718e30eb1dea4d660ea51a573d5ea66/95947627450.pdfIn PDF document text
    • http://besttailor.info/ckfinder/userfiles/files/jitupavem.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=price+elasticity+of+demand+and+typesPDF link annotation