Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b6ce6fc342d557…

MALICIOUS

PDF

239.3 KB Created: 2021-07-01 12:10:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 72876ab860fec0ffaa964eea969d631a SHA-1: f5b672fbf46b0efe09ee4bb74982a4fb94b36450 SHA-256: 00b6ce6fc342d557dfbb7a4c8129672187a0c63741b99f2bc09761f6fac20b6d
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous links pointing to compromised WordPress upload storage suggests a phishing or malware distribution campaign. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9850

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 http://swaminarayangm.org/userfiles/file/50647150488.pdf
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160be50ff5c0d1---85693967715.pdf
    • http://3e-machinery.ru/app/webroot/filesfiles/90912006772.pdf
    • https://davaocarrental.com/images/file/94456196898.pdf
    • http://novichiha.ru/pic/file/23679028861.pdf
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/265c250013662c2bb6af781a1da050c1/72423017969.pdf
    • http://dbhsreunion.com/clients/21010/File/rabazolorokar.pdf
    • http://dashoernerboot.de/userfiles/foritawojadamegelipuratuz.pdf
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/2eb63fa6cc15b59a63856f6dff02a7b8/28670540213.pdf
    • http://kurskodkb.ru/page_edit/_samples/userfiles/files/86113080535.pdf
    • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/6e7g94e7tjlgfqf5v55a4rqqu2/gulonubuzukalak.pdf
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9dac32818---31502076172.pdf
    • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dcf94895b3---50363491439.pdf
    • http://consulcongress.it/uploads/assets/file/remuzosogelegaxomufaba.pdf
    • http://stardentalcare.org/userfiles/file/tuzaxebedodanowusowegak.pdf
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/39e7bd03f1f17e80757007e6f0cf7771/61177463014.pdf
    • https://misionesmedellin2030.com/wp-content/plugins/super-forms/uploads/php/files/1a4p3bcu82u662um0oj4ekbon7/85840600167.pdf
    • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/u1t1rjdnkfudlp09qalmff4raq/wifebasuzu.pdf
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c72a8924d63---78265220061.pdf
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/a61839b85dadfb5299076254b31ad714/jezuwizev.pdf
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160943d251c4cb---76758422584.pdf
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085fc45f0297---91891017112.pdf
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/666a78e5c532192a92a38485c846cde0/bolelop.pdf
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160971a6072416---vovinokikopigi.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=organic+and+inorganic+compounds+similarities
    • 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_off00034b26.bin
6803c7f15244742e6c75691fc92a9c4e41d37841a4d7a271f8463515d0cfb36f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34B26 10984 bytes
font_01_sfnt_off0003647b.bin
10cee2d58ad0d0544a1fb7ea48c506305f1258be52adbe2ed4f4fac42e0fbf00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3647B 20076 bytes
font_02_sfnt_off000396bb.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x396BB 16792 bytes

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