Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b0f32d308072bc3…

MALICIOUS

PDF

307.1 KB Created: 2021-06-07 09:56:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 402786910ce55eea12e09b58d3da0b46 SHA-1: 3dbcb8ad5d20eb03d623e02a395a768fa0babded SHA-256: 6b0f32d308072bc3f2385d56fd8a173b147fb6774f680f55b753d28ae11717a2
124 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, many of which point to compromised WordPress upload directories. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though heavily corrupted, contains a reference to 'Pokemon in hindi all episode', suggesting a lure to attract users to click on the embedded malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9827

Heuristics 4

  • 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
  • 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://archism.ru/uplcv?utm_term=pokemon+in+hindi+all+episode PDF link annotation
    • https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1616c4818---40908575749.pdfIn PDF document text
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa3620a739---63798175608.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6f334079e---tuvekozuxefudevupopi.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a57f96885c---54106926682.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/6473498819.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8e1b76fc2---gaxekexajolikodijo.pdfIn PDF document text
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/3681d30ea50ac14794bd4113914a9b8e/pevuzuxisud.pdfIn PDF document text
    • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/04311324519ece4f42122959a97ab9ea/dasur.pdfIn PDF document text
    • http://asianaccounting.com/admin/fckeditor/userfiles/file/modesuravog.pdfIn PDF document text
    • http://cuatro-pr.org/sites/default/files/file/41366971083.pdfIn PDF document text
    • http://logiccpacma.com/ckfinder/userfiles/files/70523380938.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16090c9a0d9ae0---wojazaporogujaxovifipipub.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160913cb0d6548---muvewowufodub.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078072a31427---96036205350.pdfIn PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3fb4168ad7---japozopes.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160706ba44ecd3---radotewokamisiwenirori.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00031bd3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31BD3 146612 bytes
SHA-256: e4d4150b9aacafd273786a40291a4cc22d2e09965393421c9b7da74b87de0908

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