Malicious PDF — malware analysis report

Static analysis result for SHA-256 8084e30d0ba0731c…

MALICIOUS

PDF

766.0 KB Created: 2021-06-30 11:27:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a934458c3bf3d1653b1a54c84394e76c SHA-1: 11ad5e6ef5b6a33505cf012bed8db7897934f8f9 SHA-256: 8084e30d0ba0731cb01b28f60e9e1ca12613fee40dfaed4b223a2f9b6b6e4347
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to compromised WordPress upload directories. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classifiers also flagged it as malicious. The embedded URLs suggest a phishing or malware distribution attempt, likely serving as a lure to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5705

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.
  • 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://too.kg/wp-content/plugins/super-forms/uploads/php/files/8446ffe8a4159c824b04347115ba93a5/tikiramidojugofozepa.pdf
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160744f724320b---dixisexarolukatav.pdf
    • http://akcjonariusz.com/UserFiles/file/dojiwodi.pdf
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095aab674a00---96856906427.pdf
    • https://implantsdentairesdesmoulins.com/upload/editor/file/20237930511.pdf
    • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/95e720c72a9dd0f61f0e5db7a9e25187/jegaretisejimuvebobujoti.pdf
    • http://amandamaitland.com/images/file/60286537352.pdf
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb108752fa---favuxogafirawef.pdf
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/743iml128kin1g5vcal5ah88f2/guwuzekonawedagoz.pdf
    • http://gymostrov.org/gymostrov/userfiles/file/98903812897.pdf
    • http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/dizidipizekurozividun.pdf
    • http://www.gesas.it/media/mailinglist/file/dufifewojudavuwovemosevu.pdf
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b402ab5c1b5---80968824756.pdf
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ccd95f1eef---17575987197.pdf
    • https://tomas-music.com/contents//files/23148774453.pdf
    • http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zuvovixamivi.pdf
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160781bc352587---turatulilako.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081fd44c613e---xogarolixewedudib.pdf
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2f88c18621---selafob.pdf
    • http://mariopresto.pl/userfiles/file/noberidejevapusij.pdf
    • https://parfumzone.ro/files/file/55587047429.pdf
    • http://sequoia59.com/clients/867919/File/widoxomirebes.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=southern+toy+fox+terriers
    • 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_off000b8720.bin
3cba12676375435fa188f89802e369854f7215442da5bfaab74e5b61c270eb0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8720 10492 bytes
font_01_sfnt_off000b9f02.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB9F02 16792 bytes
font_02_sfnt_off000bb71a.bin
d54e5ee5ca881392b07b6b5091cb8419883595cd56cdefe8cc192f6e9429501f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB71A 19568 bytes

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