Malicious PDF — malware analysis report

Static analysis result for SHA-256 d940d0ba12a1cd97…

MALICIOUS

PDF

91.0 KB Created: 2021-08-05 20:21:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6e12f6109cd473cfe84c393b634e6c90 SHA-1: c87a8dfed7796c3635c6f86a3bf9ded6072a9076 SHA-256: d940d0ba12a1cd975a327b2c34d0f551b614d717fdfa2c41720e6443f1529917
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/0edddc85070eafaad00a2e8fed5ae425/podutefejexige.pdf
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160837fc8d7eb6---zuwozimujifanemawakojatu.pdf
    • http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/e3tbspcgsma5mn7qqf3e453cat/48541937216.pdf
    • https://edu-mate.kr/_UploadFile/Images/file/92688705028.pdf
    • http://au-coeur-du-temps.com/userfiles/file/terifanopinel.pdf
    • http://paroissedementon.fr/upload/files/xemuz.pdf
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093f6ab48c90---80703373960.pdf
    • http://www.advokat.com/app/webroot/img/fck/file/66517190772.pdf
    • http://yaqeen-eg.com/userfiles/file/zazuras.pdf
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fcfa1c54de9---4034889361.pdf
    • https://lapalettedesarts.fr/gestion/file/nugexudoriruke.pdf
    • https://bamfieldrental.com/userfiles/file/32627930347.pdf
    • https://yar-net.ru/userfiles/file/nuvefusoboxibojuxinezel.pdf
    • https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a8934424170---fukivaxej.pdf
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/4e780fd4f1506006643cca3417bb403b/24345163499.pdf
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e889349386---11126674464.pdf
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cd05e2c75b---67200724962.pdf
    • http://alwaysfavorentertainment.com/clients/879371/File/83946020434.pdf
    • http://cerezolorente.com/files/cerezolorente/_repo/file/dosivuvovu.pdf
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/a4e4fb7119c1876e94d105e69d7b3d9e/81454378699.pdf
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160c3a7172d709---pezenonanuzokudopadebojo.pdf
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/2ar1qss7nll7jaunej3mdvj2qu/49123272373.pdf
    • http://6nergy.fr/6nergy/sites/default/user/file/xomojebirulo.pdf
    • http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tikepew.pdf
    • http://iglozawiercie.pl/zdjecia/file/63856004777.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=google+drive+download+white+chicks
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc15.bin
dd100429fd55904e9a7fbde01fec820ecffe22ecd71bb0631b91c50fccb05e97
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC15 10932 bytes
font_01_sfnt_off00011539.bin
b5c627dfff8e78ddda77f02cd7b3b79d6fcd5c83cda93581f7df5ae5a77ba5ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x11539 18148 bytes
font_02_sfnt_off00014541.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x14541 16792 bytes