Malicious PDF — malware analysis report

Static analysis result for SHA-256 f586062c8496c7d8…

MALICIOUS

PDF

63.6 KB Created: 2021-07-31 02:34:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 287c4f0df297f27d1f9a206ee3b7e5b6 SHA-1: 8dcdf7484eb505f754b7544081279d3cb1229ece SHA-256: f586062c8496c7d8da09580c36aa0e1815447f7ec9ad8d329afe6931265e685b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as Pdf.Phishing.Trojan. The file functions as a link farm, containing numerous URLs that point to other PDFs hosted on compromised WordPress sites. This suggests a phishing or malware distribution campaign where users are lured to click links that ultimately lead to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9138

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://smidgel.ru/uplcv?utm_term=which+term+does+not+belong PDF link annotation
    • http://hophungvietnam.com/app/webroot/uploads/files/14414496837.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe878e231a---guxulemi.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb6fc27140---70242606011.pdfIn PDF document text
    • http://zaun-produzent.de/userfiles/file/44795570814.pdfIn PDF document text
    • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4477cbecd71960eff19bea2712fce475/95179229754.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0753610a8b18e1484c39e1f19b73fac5/53854394603.pdfIn PDF document text
    • http://www.advokat.com/app/webroot/img/fck/file/rewadunirigotovulegosifor.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/08f2293b03a00ec621e034950c115d6e/safesagulupefaro.pdfIn PDF document text
    • http://vce34.ru/attachments/file/boviluwujinenajutizif.pdfIn PDF document text
    • http://travelci.ru/ckfinder/userfiles/files/vibofapukalopipofovatir.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/79196126561.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f47dae72a7---nuzidebugovefuluwubeti.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/a38c873dc62b6c471d5ed0109f42dba9/49201209218.pdfIn PDF document text
    • https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/18mqmniuva8n0vepmb5p9heesk/92666381695.pdfIn PDF document text
    • https://nolimitscenter.be/peausitive/images/FCKeditor/file/28380074221.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a3ad88768b8---mitoj.pdfIn PDF document text
    • http://vekosgroup.ru/userfiles/file/41903773514.pdfIn PDF document text
    • http://fsgzb.com/upfolder/e/files/20210628113048.pdfIn PDF document text
    • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16091569d6b3b4---tujusukiv.pdfIn PDF document text
    • http://etcad.net/np/upfile/file/laxan.pdfIn PDF document text
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/16081335fbdb3e---panigunewirewor.pdfIn PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/49983ab77ca72624e68b7812f1363cee/58556751087.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a685f9df696---42011545091.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/brt1rfk1br6gk964h1rnlecdfn/bulizetelatofikaxajorosa.pdfIn PDF document text

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