Malicious PDF — malware analysis report

Static analysis result for SHA-256 74ecb59c2bf097fc…

MALICIOUS

PDF

46.8 KB Created: 2021-09-15 02:28:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 5777d6903a8fdbb08cfe1ceb9effffba SHA-1: dddeca3338a2844324c1fcf12d5f9afb72f17f2c SHA-256: 74ecb59c2bf097fc94e4ae9755d642ad772ccd5595943eed20219092fb7fab22
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and embedded clickable links. The links point to PDFs hosted on compromised WordPress sites, suggesting a distribution mechanism for malicious content. While no scripts were directly extracted, the PDF structure and URL patterns are indicative of a phishing campaign aiming to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9202

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 46 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614117851a118---9787661054.pdf
    • http://kasintorn.com/images/upload/files/vetowaderilodufafironus.pdf
    • https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/kozevidisoxorovosapo.pdf
    • http://tdbm.vn/upload/files/58269200625.pdf
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/arl8nggbevq86v5fqkacfp62r4/jomezabez.pdf
    • http://kronospan-mofa-hungary.hu/editor_up/37844973435.pdf
    • http://longchimvac.net/app/webroot/uploads/files/99671524781.pdf
    • http://gemculture.com/userfiles/file/fevovofipozepe.pdf
    • http://american-security-inc.com/assets/ckfinder/userfiles/files/vudug.pdf
    • http://szjglaw.com/uploadfile/file/2021090710514373499.pdf
    • https://granitnet.hu/editor_up/susevup.pdf
    • http://xinchenfast.com/upload/file/rawavopox.pdf
    • https://pastravariaizvoarelebratiei.ro/images/file/mosefomina.pdf
    • https://worldpigment.com/image/upload/File/zozolivajetizalur.pdf
    • http://oroblupiscine.it/userfiles/files/lomexad.pdf
    • http://www.jindatunnel.com/up_files/file/fojosujazijukirefuzomikaf.pdf
    • http://avtrak.ru/ckfinder/userfiles/files/dijog.pdf
    • https://gangnampools.com/contents/files/wilekujaromeje.pdf
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139aedeb1cc7---zovef.pdf
    • http://arucax.am/user_images/file/woruxi.pdf
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cff23a2337---mezewipitupila.pdf
    • http://hcm-invoice.vn/hinhanh_fckeditor/file/10957406328.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=klondike+adventures+1.7+1+mod+apk

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