Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8420a6bccfaf9c9…

MALICIOUS

PDF

75.2 KB Created: 2021-05-11 06:56:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ef9eabfe0477d34470bf0da0b4f4e6bb SHA-1: 0e19aebc73571b1c090280fafdcf74fd2c2eeb0e SHA-256: c8420a6bccfaf9c9014f1cad67682fd702e7d4db33ff9ee610cba74f8f043575
116 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains external URIs pointing to suspicious domains and an IP address, suggesting it is used to deliver further malicious content. The presence of embedded URLs and the overall structure point towards a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://garglob.ru/uplcv?utm_term=bajaj+allianz+company+information
    • http://aksaaydinlatma.com/img/editor/image/file/poxigaramomunenefo.pdf
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/90da1f9be781bab389507e766bebdcfa/guloxaz.pdf
    • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/373e8163eb8b210a33578b55046c148b/bojig.pdf
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16080be4a34521---wawomozasini.pdf
    • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/678822dfb1aae48d0b89391c3af269bf/26362093194.pdf
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/8m7aibt0h1rsn8heko4s34fmnr/rubanaxanukomulavaxoko.pdf
    • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/16095308ef17bf---8880594899.pdf
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/bpjmca6ko7fajvth6tt2eukvk7/73806011677.pdf
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a13e40b10---tebovagigojoxowusoratiw.pdf
    • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/25e6574ddb2af3c5d55fd72242be19f9/42952043862.pdf
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607459b197f06---53105109892.pdf
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160830acbaf824---rejovaxejuwonajoguwep.pdf
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160784bc6cd501---pelubelemejezix.pdf
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/3f1a913c4c30fdd62124b68a8c3b70dc/wanuzetawu.pdf
    • http://al-bandak.com/userfiles/file/82779557534.pdf
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609260b8482d0---72279110288.pdf
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/ea0dc0cac0038a8d5f8bf04d9cc35836/worujoragori.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607effb6013c9---gijoveromugoxijofugeju.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000e76e.bin
c3fbea4c2c82cd3bf787bb78757d97ac7d3f97cddd3ddb1c2332261f253af260		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE76E 5260 bytes
font_01_sfnt_off0000f959.bin
07d14ace217eabedc82d0438bfd1aabe002a9b20b6652f1004849f9d7682b8e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF959 11340 bytes

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