Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d207e0227f4e1e6…

MALICIOUS

PDF

243.7 KB Created: 2021-07-22 09:57:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: 0ddecf4f53fc590afb329e693b195675 SHA-1: 4ab984eac018544bd30662bfe1f006993c2c3b6a SHA-256: 7d207e0227f4e1e61309011f6df345ad4e2245395c91b9efaa773423fd526328
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as a phishing trojan by ClamAV and flagged by an ML classifier. It contains numerous links to compromised WordPress sites, indicating a phishing or malware distribution attempt. The PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristic specifically points to links hosted on compromised upload storage, suggesting a tactic to host malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8758

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vishalahospitality.com/ckfinder/userfiles/files/zagizijoxotekunenelemoneb.pdf In PDF document text
    • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d254f54fe0e---66021806392.pdfIn PDF document text
    • https://pacie.vn/web/uploads/files/xiraruzive.pdfIn PDF document text
    • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/0d4527e0b681957d92426270bececcbf/12397938980.pdfIn PDF document text
    • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/05f6e70fc92038c6b676fa8ba66cfc22/detoz.pdfIn PDF document text
    • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/a8dp8mduhneap56vptlqftitq6/70367679924.pdfIn PDF document text
    • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd5e052bfd---zuxakofana.pdfIn PDF document text
    • http://longarmacademy.net/fckeditor/userfiles/file/zosub.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/nafuvepogixijasas.pdfIn PDF document text
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e7229f6d5---5124600681.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/9c7767bacb20ec727a12e4f41dec2aa8/vutupufiwizore.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609b381792aa5---zibafuposajezesutekap.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160989c85eae57---sajeve.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/5i4ro2tfrlmb5arkgj9aolvckp/kaxujiguberetutaxuj.pdfIn PDF document text
    • http://www.dogwoodagility.nl/ckfinder/userfiles/files/duxulupa.pdfIn PDF document text
    • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/10a8e8639cdc13465622183cea076a7c/24222177594.pdfIn PDF document text
    • https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/3c9f57eb1268a4af0cb9d98ba0c6760b/besugopejilajenorijisubu.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc8fbac1ca6---89411978609.pdfIn PDF document text
    • https://nikosdimos.gr/userfiles/file/gakinosepav.pdfIn PDF document text
    • https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/1854deaacc07efb90aa344e707e70262/dubebebijekanifego.pdfIn PDF document text
    • http://anbao.vn/uploads/userfiles/file/8945834581.pdfIn PDF document text
    • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/2a52872edd41c4cc74485e15020a788a/taximoxogegilalenura.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=levi+with+mikasaPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002e41d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E41D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0002fc2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC2B 45248 bytes
SHA-256: a01d39c363084673022331d7b1f37e41777c9a8cd50abb7bc421f32bb57a9aff
font_02_sfnt_off000375ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x375EF 10204 bytes
SHA-256: 5013b47acf3ed94b267954b64c8d5cbbfdeb1ac840e8ac2c2300682c1ec15b7f
font_03_sfnt_off00038ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38CE2 19308 bytes
SHA-256: 7c3c87efd0d966adf60e9f6a18fc19e319aeceaf0ef96d21e40cc6f8290200d5

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