Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b82013fa1358149…

MALICIOUS

PDF

66.5 KB Created: 2021-07-30 18:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: e3019f938424ed10a361aa9216499e7d SHA-1: ba1a0942d3ece2cea95bb14fd9e7650f20e79a56 SHA-256: 4b82013fa1358149410048585493e5c1546d977f85ad0ae7fc8f46fd42d5323e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the structure and URLs strongly suggest a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9558

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://pistant.ru/uplcv?utm_term=throne+of+glass+4+read+online PDF link annotation
    • http://studiovalentini.eu/userfiles/files/18048982391.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/e94a9ad20e776fb14b9b3ba7c5f828b2/69620376792.pdfIn PDF document text
    • https://fotovipvercelli.it/file/94036136413.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/f96c2769b5caaa8dbb1afc206b462d75/wefugolulumejime.pdfIn PDF document text
    • http://kcobafl.org/ckfinder/userfiles/files/71625825614.pdfIn PDF document text
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/21so9ktd3h6mbqbd6acha922g9/39588842335.pdfIn PDF document text
    • https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/49731854064.pdfIn PDF document text
    • http://dlevitin.ru/fck_editor_files/files/piruxoziwazuk.pdfIn PDF document text
    • http://fashioneducation.ru/userfiles/file/xenoraxezaragaxasub.pdfIn PDF document text
    • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8058771ef1---xoduxebimobaxorakevoware.pdfIn PDF document text
    • https://htlexpress.com/ckfinder/userfiles/files/lekudapukoxitagezusuti.pdfIn PDF document text
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606faf459d604---83684687008.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607c96a381d79---lizitowososologubanobog.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16089585a45dbe---85499998139.pdfIn PDF document text
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1606c852feb95c---xukuredakazid.pdfIn PDF document text
    • http://yuanyoujie.vip/userfiles/file/37108018662.pdfIn PDF document text
    • https://handinhand-daycare.com/ckfinder/userfiles/files/dudesozugagudu.pdfIn PDF document text
    • https://aquafilling.com/userfiles/file/7508133451.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/e4ad12eceeef19f0d0af7e2af9d7922e/bufazifafel.pdfIn PDF document text
    • https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/773f1a70aadcc494554ae3022591fbae/96328945060.pdfIn PDF document text
    • http://banquat.com/userfiles/files/refebariziletuferevupon.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/20671740927.pdfIn PDF document text
    • https://rts-wm.com/ckfinder/userfiles/files/pelijetiru.pdfIn PDF document text

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