Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aba2633483bd438…

MALICIOUS

PDF

63.7 KB Created: 2021-09-01 16:13:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c1fa996d6969af02e60f77f19b4f258a SHA-1: 6205c6188d9349278e346640be452f910ebc8d9c SHA-256: 3aba2633483bd4389197dcca272b799d4488f1ee7711657af255ae7669348cfc
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of external URIs and link farm heuristics suggests the primary function is to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

Heuristics 5

  • 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.
  • 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://pixomot.ru/uplcv?utm_term=how+to+find+champion+gundyr
    • http://csim.jp/ckeditor/uploads/files/46246791342.pdf
    • http://stonebriarranch.com/clients/876969/File/nifodosa.pdf
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/ff315b776bf1526e665e83065c3ec791/70183920072.pdf
    • http://bsl-trans.ru/admin/ckfinder/userfiles/files/wexofu.pdf
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608c4b46c3e7c---46862698111.pdf
    • http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff4bde9886---17387107909.pdf
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/fffe17ebb32316a2dbd0d596d3e36c58/makezotugilit.pdf
    • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160826386dcf56---zewaredikopetesog.pdf
    • https://viveironativodevicosa.com.br/ckfinder/userfiles/files/15712748500.pdf
    • https://partnermind.cz/images/files/62314103673.pdf
    • https://goooinggroup.com/userfiles/files/20210731_031643.pdf
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a9075ed5aa9---67488926293.pdf
    • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/45973460252.pdf
    • http://yameitecl.com/ckfinder/userfiles/files/20210710_110211.pdf
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/d00dd11a533d965f6c59a0c12ba4c58e/remimaviriz.pdf
    • http://strategie-online.net/catalogue_dynamique/file/ditekavuguki.pdf
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c742f72695e---21644414280.pdf
    • http://thy-environment.com/userfiles/files/21732755270.pdf
    • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16070d1898926a---pupuxeratuwumezoben.pdf
    • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/94002da4d496efb5c26ee1ebac016268/kaxizupuloledotenuzex.pdf
    • http://canxetaianhduc.com/images/file/tarupezojuvagosegazo.pdf

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