Malicious PDF — malware analysis report

Static analysis result for SHA-256 e792d205e470ede3…

MALICIOUS

PDF

87.3 KB Created: 2021-08-13 23:20:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: b4a5d95bec5c1d84079d1f28fa217930 SHA-1: e42e2aa13ee30df09d12a90bfbb01cc238e6ee1f SHA-256: e792d205e470ede394f22a8d41301ecc0b9fe3abdb3b3539c8a5486419fad240
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware delivery through these links. The document body is heavily obfuscated and unreadable, providing no direct content clues.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7161

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://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/76ed1e926a024df3838e2decc82671fb/91389789497.pdf In PDF document text
    • https://nhahangthanghuong.com/uploads/files/24653927757.pdfIn PDF document text
    • http://sanga.asia/userData/board/file/bejafofotebipinawit.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16083b1f427b5e---gonuwezanekobutiwef.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b045b3e9ea8---zeligobutorapudupulivaf.pdfIn PDF document text
    • https://aaaxxion.info/images/file/67121257415.pdfIn PDF document text
    • https://larrialdiak.es/files/galeria/files/dugidudulodezapa.pdfIn PDF document text
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1c283323f7---dijuvofumagolulo.pdfIn PDF document text
    • http://chiangmai-clean.com/user_img/files/19400961322.pdfIn PDF document text
    • http://market-oborudovanie.ru/upload/file/rutaganefigem.pdfIn PDF document text
    • http://ediljolli.com/userfiles/files/91757428414.pdfIn PDF document text
    • http://shiokuda1.com/contents//files/xorugezorexijubodiwejoti.pdfIn PDF document text
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/5479c9468f33b38c4cfd2686e93cc9b2/fatire.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f055c705829---durigewujiposadiponojido.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16090f733f124c---44216933469.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/gj56shkqdfjcsgpitl648rtt77/vifuxuguwuraselorimuni.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a296e9aeec1---89110352806.pdfIn PDF document text
    • http://i-dron.cz/data/file/ledapugijiduduvozonodarok.pdfIn PDF document text
    • http://yogaschoolofkerala.com/photos/editor/files/vujerugoxumabefatazule.pdfIn PDF document text
    • http://arcadia-fitness.es/userfiles/file/kirosututa.pdfIn PDF document text
    • https://webshopplus.nl/app/webroot/files/userfiles/files/sunekudususimaso.pdfIn PDF document text
    • http://pantanalmsnews.com.br/ckfinder/userfiles/files/66964448209.pdfIn PDF document text
    • http://constantemail.com/userfiles/file/162735920796263925868.pdfIn PDF document text
    • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/us88vn4svidpm0tppk45seo421/29179936945.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=formation+anglais+en+ligne+gratuite+avec+diplomePDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001398c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1398C 11000 bytes
SHA-256: d3f38623fd9f707c1c96204287d8cb708b6009f9296f781f8ac641b831354756

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