Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b7b38d38196346…

MALICIOUS

PDF

70.0 KB Created: 2021-05-05 18:54:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a15b8e62db2b34d6fbef9c629dec45b SHA-1: 62a5fd41094ede7b9bab4f01fee3bdf0b85ab346 SHA-256: 07b7b38d38196346e1cb97569268ce0276328865383e2346f835638c1ed9ce6d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URI that directs the user to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to exploit users by directing them to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://philabc.ru/uplcv?utm_term=how+to+use+vlookup+across+multiple+sheets
    • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/9170c8aa11ee3627f5598a39e98a5804/ripitevitekereresuxu.pdf
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/p9jrukudcbmmftf15b0qubq366/44844141957.pdf
    • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd86e8c7a9---vodokedubabus.pdf
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1ae3094b6---wimobemilavajifowigali.pdf
    • http://alarcon-v.com/editor_upload_image/file/vosuzididixinago.pdf
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/160790add784be---1537466589.pdf
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9bc5a15ee---gawapimujizudodaf.pdf
    • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/1b63333eca902d5c7ad26bc3371d6e10/jiritetafororuwuxum.pdf
    • https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/a99c687ec94137a7f4effe93c8b0aaf4/65637150356.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608897f76c80a---titazemesejepizelewiroz.pdf
    • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/68af660146a35cc596f531db5f488cdd/46104878563.pdf
    • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607797db452b2---3608623872.pdf
    • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/5b8572fc50b6ae78b827ff79ed5029f4/43165356938.pdf
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/51508db0676ddbaa4ee725ae7b1fd8a2/54101328643.pdf
    • https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160787dfe4cdc9---2417655997.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6cb8218df---15319026475.pdf
    • 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d36d.bin
ae8680321143654b8a3be75d6907d8fc68efdd246def3805ae4a7957825e3ba6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD36D 5348 bytes
font_01_sfnt_off0000e585.bin
66c9771587540ff55122cd300df2f87b50314c4343e0c9ad6cfe0f5cd785d608		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE585 10876 bytes

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