Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd26881924b6de7a…

MALICIOUS

PDF

84.5 KB Created: 2021-05-25 00:58:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4eca4cbcc015c2185a93702df367b940 SHA-1: 72a4d3bf650d27792050477c44ac33d25cac6cc2 SHA-256: dd26881924b6de7aba6e7854e7675897558fc2905d3d9c3d849741b4dd4866a2
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8798

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://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/f0e204572561fbc4157ad8debfa297ac/85013661563.pdf
    • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095ff7399b09---malegofemuguw.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089fab695fbb---sudopa.pdf
    • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/08d3a449ba6cfe95082cb38c2b39c492/nufigojijovenunezij.pdf
    • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd515276d5---21855021506.pdf
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/hr5559mscov9s33hqaijvpliu6/98047244786.pdf
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089c5ce4ab76---83290915521.pdf
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/vtfha0p92u55vkg6207gc1m0kp/bifokugunaborerixesumagid.pdf
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/jq7khm17fifcdl2ab3n2gnkb54/fejasoko.pdf
    • https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/f0d5910a63dad2d69167a4f1a29606ba/sojiten.pdf
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a365020160d---vapudodubelan.pdf
    • https://rybczewice.pl/userfiles/file/gupumisedi.pdf
    • http://bclgrouptt.com/userfiles/file/tebewatosef.pdf
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/iu0qjbkvjbaeq5k7u9l21nbui7/tawovefamerafe.pdf
    • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/7a6797e72899053882e24a8d0e8de38b/wokafujaxadajadaw.pdf
    • http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/52442707482.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BA%25D0%25B0%25D1%2580%25D1%2582%25D1%2583+%25D1%2581%25D0%25BE+%25D0%25B2%25D1%2581%25D0%25B5%25D0%25BC%25D0%25B8+%25D0%25B2%25D0%25B5%25D1%2589%25D0%25B0%25D0%25BC%25D0%25B8+%25D1%2582%25D0%25B5%25D1%2580%25D1%2580%25D0%25B0%25D1%2580%25D0%25B8%25D1%258F+%25D0%25BD%25D0%25B0+%25D0%25B0%25D0%25BD%25D0%25B4%25D1%2580%25D0%25BE%25D0%25B8%25D0%25B4
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BA%25D0%25B0%25D1%2580%25D1%2582%25D1%2583+%25D1%2581%25D0%25BE+%25D0%25B2%25D1%2581%25D0%25B5%25D0%25BC%25D0%25B8+%25D0%25B2%25D0%25B5%25D1%2589%25D0%25B0%25D0%25BC%25D0%25B8+%25D1%2582%25D0%25B5%25D1%2580%25D1%2580%25D0%25B0%25D1%2580%25D0%25B8%25D1%258F+%25D0%25BD%25D0%25B0+%25D0%25B0%25D0%25BD%25D0%25B4%25D1%2580%25D0%25BE%25D0%25B8%25D0%25B
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011439.bin
1ca37c73715c0f18cd888090a40d37f436138c0925ad943c86f1043fe8a3bc60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11439 5876 bytes
font_01_sfnt_off00012783.bin
b5ea4a8f35b5e380d0bff7d9f0dedbc754baec9a7204816c198675bf9fbdf1aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12783 17040 bytes

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