Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f29d540163e67fa…

MALICIOUS

PDF

52.6 KB Created: 2021-09-21 09:00:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 3ed3185b3c34024efab127de98ac0060 SHA-1: 47431b812260233fad7c0dc4f5d8d8e63dffa105 SHA-256: 8f29d540163e67faf220bd7f46a374653cbba157fb16bedbf94bd0c9d220c8e6
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a significant number of external links, many of which point to compromised CMS uploads or disposable hosting. This suggests the file is designed to redirect users to malicious websites, likely for phishing or to download further malware. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4893

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 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://crysiq.ru/uplcv?utm_term=how+to+download+apps+into+sd+card PDF link annotation
    • http://pazzo.jp/js/upload/files/23375583835.pdfIn PDF document text
    • https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/4030057542.pdfIn PDF document text
    • http://gernano.eu/gfx/userfiles/files/66024599904.pdfIn PDF document text
    • http://trungtamdaykem.vn/Images_upload/files/94290174788.pdfIn PDF document text
    • https://2acontractor.it/images/file/20632441524.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b62c4721f4---dujejum.pdfIn PDF document text
    • http://gmtshipping.com/attachment/file/negad.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/4ba2822e176b2e2b70b6863d967c3b27/89322778158.pdfIn PDF document text
    • http://tasteofruraleurope.eu/upload/File/82092218662.pdfIn PDF document text
    • http://terralis.eu/catalogue_dynamique/file/75088454611.pdfIn PDF document text
    • http://cdmvt.cz/sites/default/files/davowelad.pdfIn PDF document text
    • http://www.videobezopasnost.ru/ckfinder/userfiles/files/tavug.pdfIn PDF document text
    • http://eksternest.be/images/file/34651189144.pdfIn PDF document text
    • http://motopujcovnateplice.cz/userfiles/file/20025973055.pdfIn PDF document text
    • https://amthanhanhsangchinhhang.vn/upload/files/bavodarevis.pdfIn PDF document text
    • http://xiangzhuan.tw/upload/files/jumomavatofagifumo.pdfIn PDF document text
    • http://dichvutot99.com/webroot/img/files/88056630892.pdfIn PDF document text
    • https://www.peltonfell.org.uk/ckfinder/userfiles/files/52464181680.pdfIn PDF document text
    • http://jan-fotografie.nl/upload/files/48757095391.pdfIn PDF document text
    • http://jiachuankeji.com/upload_fck/file/2021-9-19/20210919013833951986.pdfIn PDF document text
    • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/j6mgn4epim5pquh02ifrrnmpd7/58027540425.pdfIn PDF document text
    • http://simonhoirup.dk/userfiles/file/giwepobojo.pdfIn PDF document text
    • http://www.dean-cpa.com/files/adminpic/file/logiwike.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/9fba238cf318ce9b2bc532c6125ed200/68346442602.pdfIn PDF document text
    • http://sowa-architekci.pl/userfiles/files/85183206551.pdfIn PDF document text
    • http://pekbdt.com/filespath/files/20210901062706.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135518d1aee5---xiriwisonukakinasikejuse.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/3uesksupbpne1ltbtr71b1cm00/vogoluluna.pdfIn PDF document text

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