Malicious PDF — malware analysis report

Static analysis result for SHA-256 0daa998e9d1322da…

MALICIOUS

PDF

230.8 KB Created: 2021-07-16 18:28:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 0bb1f3bf04aa6464271ab52923495b9d SHA-1: 3b9a99e77364ea782371eaca27779207278443e0 SHA-256: 0daa998e9d1322da0cea8e6387448f71da35848f57619c2b2fee8a9b3ddcf3d1
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. The heuristic 'SE_PAYMENT_REDIRECT_LURE' indicates the document attempts to trick users into changing payment details. Multiple URLs point to compromised WordPress upload directories, suggesting a pattern of hosting malicious files on potentially compromised infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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 http://mp-journal.com/media/file/dafopabuxav.pdf In PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d102254d89---56898625595.pdfIn PDF document text
    • https://bloomland.com/sites/bloomland.com/files/xudofusumosunugudolowiw.pdfIn PDF document text
    • http://asdgolfclubtoscana.com/writable/public/userfiles/file/fapavi.pdfIn PDF document text
    • https://riondene.ch/img/uploads/file/50064105628.pdfIn PDF document text
    • https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/pelezogax.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/27269749818.pdfIn PDF document text
    • https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/97a4b04f3ed07f5a552b06a1017ba336/guzisonowo.pdfIn PDF document text
    • http://ipublicity.cz/data/file/midesiredoxubufadidober.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/1c821e7b077438fd81a5e0343de5f67c/buputagevipeni.pdfIn PDF document text
    • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/k829q4usl2uuf4pi3gvo253nuo/79735063121.pdfIn PDF document text
    • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/0bc70e89b21091e2f75e8584cb6ccd8b/kikorebobuvanenurobog.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16096af9d2af97---85620709868.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/a6c2824d03534b7fb40335cc51a1fa52/befuvepewakarurobofepi.pdfIn PDF document text
    • http://palaciodelosnavas.com/userfiles/file/xufiwulixaxineka.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078669d251f4---zibejafutejawuruw.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160bf5893674d1---kuvavegezaro.pdfIn PDF document text
    • http://consulcongress.it/uploads/assets/file/13793490788.pdfIn PDF document text
    • http://pincailight.com/zk/UploadFile/file/2021062719523573499.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/a6169e1dc4fb5712e6712a36dc8ef445/65499133559.pdfIn PDF document text
    • http://bbpcosmetics.com/admin/upFiles/2021-5/file/lusovebo.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc15bc76c1---94841632244.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=the+wolf+of+wall+street+pdf+free+downloadPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00032c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C87 18328 bytes
SHA-256: cfb0ee1eb959f9e08970bd9b96f2f8ac440336925d806593223cd6d5f77ca4bc
font_01_sfnt_off00035cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35CC6 10552 bytes
SHA-256: 92635610215c3e7255bc1e90a49ca307b58e48fe8ce4f12fe5ba27986893755a
font_02_sfnt_off000374ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x374EA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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