Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ba06db8a1b4b3a1…

MALICIOUS

PDF

42.5 KB Created: 2021-06-28 17:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-24
MD5: 0d127eb1f4ca9c4262a8aef000576f4a SHA-1: b983f33e38e73702032a8a27a820686d2e01beaa SHA-256: 4ba06db8a1b4b3a1ac60c6cc5acbef9670a7520a3cd111f00faab318b5625481
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6947

Heuristics 6

  • 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 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://crewmak.ru/uplcv?utm_term=pennsylvania+unclaimed+funds PDF link annotation
    • https://weeb.nu/userfiles/file/77388289046.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/27vul6747eh0adtds6gfij9j34/bimilibop.pdfIn PDF document text
    • https://hosvagyok.hu/userfiles/file/63185097742.pdfIn PDF document text
    • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/qv8h2dgiua0bfoh9vsiscvqbpb/kapepagozetipolizifuzuk.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/tcfs6g5mqrsmeu0j8juc767unb/82589035051.pdfIn PDF document text
    • https://people11people.gr/uploads/File/fikaromofiwezuxe.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160b826717164b---nemixupasujaviwovamejo.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca21d94341---21321520096.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/41482fad9369d2218716206a9da0296e/81399895599.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160821b2c27d01---lamukefixinezunemefipane.pdfIn PDF document text
    • http://divorce-difficile.fr/userfiles/file/94160388263.pdfIn PDF document text
    • http://amandamaitland.com/images/file/vadiguwavelababew.pdfIn PDF document text
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/2n1io9nmk26bt9lv4q84et71i7/jolesexeral.pdfIn PDF document text
    • http://stardentalcare.org/userfiles/file/kumid.pdfIn PDF document text
    • https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/5b63893920a983d1a0913d1f9ae7d720/37912185957.pdfIn PDF document text
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074f73b76c50---fewewetuzovumifakulipipum.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077544eb5d2d---wivasukizininusabox.pdfIn PDF document text
    • http://arch-teh.com/pic/userfile/fidexofopiluxoxarami.pdfIn PDF document text
    • https://daiichitravel.com/uploads/news_file/33331991021.pdfIn PDF document text
    • https://hizlipin.com/calisma2/files/uploads/52870616685.pdfIn PDF document text
    • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/ula7apuftbr0vjm19v05ep4mcg/sadusisu.pdfIn PDF document text
    • https://prosaison.fr/userfiles/files/fikajeribagivo.pdfIn PDF document text
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/7b43b1eb30ae5bb312356932b6c821ec/45877839183.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.