Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd27bcf1c4cabe57…

MALICIOUS

PDF

62.3 KB Created: 2021-09-04 08:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 4ed3dc34b009d2cbdc75ceed96f3cceb SHA-1: d06d69e35c493d09c6dd7e1ca674ffd89c1250b6 SHA-256: cd27bcf1c4cabe57da4a0d15d17eea177a607cc7318fffae7315382e12869a24
124 Risk Score

Malware Insights

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

The PDF file contains a link farm that directs users to multiple compromised WordPress sites, likely to host malicious files. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates malicious intent. The file's structure and numerous external links suggest it's designed to lure victims into downloading further malware.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3485

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://bringem.de/wp-content/plugins/super-forms/uploads/php/files/63ca69ef441ca9dbdb7ac0b2aea57a75/26340574854.pdf In PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/1b696ba0b66b0c156ed523fcf210c8cf/92812224582.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f4071820544---julanenaniru.pdfIn PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16126104d3982e---monujagutekigugoj.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/0p32kfpc877lbv263vmtnd58dv/63129291365.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f46253b195---67815939113.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b260c449c5b---97958691845.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/b84308b6797a376e8fb62526544fb720/kinomekigorak.pdfIn PDF document text
    • http://peetersinstallatietechniek.nl/upload/files/fovuxesinigowimeta.pdfIn PDF document text
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dde1564968---piloluvokotosixakem.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/bnjhro924m4hk47irduojl5koj/40911857806.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abebbf7e194---luratejowemagivigu.pdfIn PDF document text
    • http://srividyaastrology.com/userfiles/file/xenulotalerapadavabu.pdfIn PDF document text
    • http://ajtoablakcentrum.com/_user/file/buxikiduwexanax.pdfIn PDF document text
    • http://wedooverseas.com/userfiles/file/38163263645.pdfIn PDF document text
    • http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/boruxuwidiworawunapujum.pdfIn PDF document text
    • http://gowowdeli.com/uploads/files/rimiwonujo.pdfIn PDF document text
    • http://polipadel.com/userfiles/file/gidovopazil.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/02b34d9fcef1316fb70332a54e50118d/seperavenogo.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3765f16a50---mofetavove.pdfIn PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/79885299966.pdfIn PDF document text
    • http://tandartsindex.nl/images/uploads/41956005895.pdfIn PDF document text
    • http://tuzy.pl/Upload/file/46492994330.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d43c3c24d3e---razijewi.pdfIn PDF document text
    • http://allycatering.com/userfiles/nivafa.pdfIn PDF document text
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc9a387812c---dakafikisavaper.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=partogram+pdf+downloadPDF link annotation

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