Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6a92b8920ec08e…

MALICIOUS

PDF

70.3 KB Created: 2021-07-16 08:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 8d0eb3f4841c767a0a71beab08435858 SHA-1: e199892df5f35d7c10a2ed8e40efbee3373f7a9b SHA-256: ca6a92b8920ec08ef8d11623098dadefbe8cdddb20cbdacd3b97d309bd0cf968
124 Risk Score

Malware Insights

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

The PDF file contains a link farm pointing to numerous URLs, many of which are hosted on compromised WordPress sites. The ClamAV detection and heuristic firings indicate this PDF is designed to lead users to malicious content, likely phishing pages or malware downloads. No scripts were extracted, and the document body was unreadable, but the URL structure strongly suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4988

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 http://canxetaianhduc.com/images/file/26361980141.pdf In PDF document text
    • http://okzawidow.pl/img/upload/files/degakukozivigoguwijejag.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160d5a150c82fb---71471468116.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160747e4053bbd---dupade.pdfIn PDF document text
    • https://vibangnhadat.com/uploads/files/55558375046.pdfIn PDF document text
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/8350e169c1250d338429c155ecba68c9/fudesexejo.pdfIn PDF document text
    • http://ohsongpharm.com/ckfinder/userfiles/files/3647887332.pdfIn PDF document text
    • http://drthchowdary.net/userfiles/file/mebofaxurobegex.pdfIn PDF document text
    • https://anthonygillant.com/userfiles/file/23995280011.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3hkv4vam84psgdtvbnb5o3equ0/fugimedi.pdfIn PDF document text
    • http://on-video.com/movies/movie_data/file/faxigu.pdfIn PDF document text
    • http://bright-inter.com/file_media/file_image/file/bojojevemizefexozulobir.pdfIn PDF document text
    • https://davidfoleyinc.com/userfiles/file/gigemufenugokaxut.pdfIn PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160985d2b3aec0---20891921287.pdfIn PDF document text
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c3be80702---navizonusero.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608081e7e54b3---togata.pdfIn PDF document text
    • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/p5avcjga7ionn0kodaik23kn1e/wutalibuxinizarajex.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/52066744015.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e2972220e---kexenimefezib.pdfIn PDF document text
    • https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/2f2463b4e7bf7b5927be357e633a81d4/46889878803.pdfIn PDF document text
    • https://alnahamgroup.com/userfiles/file/54922789656.pdfIn PDF document text
    • http://albino-pitti.com/pub_img/file/7676222900.pdfIn PDF document text
    • https://nada70.org/userfiles/file/14239968079.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=ielts+reading+answers+of+miles+davisPDF link annotation

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