Malicious PDF — malware analysis report

Static analysis result for SHA-256 848a7b0265db742a…

MALICIOUS

PDF

70.8 KB Created: 2021-05-11 20:50:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1346f8b040832acbb488f8f721d5315c SHA-1: f6b51bed73589e8e0476ce0318eb3d013fe4c4ea SHA-256: 848a7b0265db742a62f47a2c5db717985753f7f4ff282d3a8d4ad828f1ade62d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a movie download link, likely to trick users into downloading malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of external URIs and the overall structure suggest a phishing or malware distribution attempt.

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://nomylo.ru/uplcv?utm_term=baahubali+the+conclusion+480p
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/eb21d09ed1a06f514ac85c00e2094055/87019040920.pdf
    • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/ebfea855bceb5d9a1e77f1bb9570a0b3/85033506919.pdf
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/ad7309c2e6e2dd33e081b6565fbb55fb/pebowarilofite.pdf
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/f8sn5p4i9vnl0p4ao1io0q7sb1/tiwavidafemejawod.pdf
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8e969ea89---44655942406.pdf
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/ndi5ui78ugh38cn2nbb7t5m81v/tesozovifusup.pdf
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccf8dc26bd---sosamuj.pdf
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7e88503b608d85f0bf8e702f671c6575/pesemig.pdf
    • https://almoheetmanpower.com/public_html/userfiles/file/xalapeluluvupamaze.pdf
    • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/504df9ab55a718be5b108739dcd06c92/xesepap.pdf
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/4468063613986434ba657af16b99de4f/31151469595.pdf
    • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/8c27501977f7345a4f8022bd384f4971/11147894686.pdf
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/84e78d943d87d1253586258b06b2e3f3/97731791909.pdf
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/mctf83nncaoiaf07b0996ko8m0/sefus.pdf
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160725fb675bfa---58253970001.pdf
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/41f2f0497a31741f150db6a0914bc40b/siwonagugixoforolotobe.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_off0000d8ca.bin
1e90dca58bfd34cfbba2b23d46912de8c7f3e11b8e0d68758fce6e101e97752f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CA 5540 bytes
font_01_sfnt_off0000eb9a.bin
4b8015c4761d72996fc75309230549b443697335821bf0f3794235e9e1bbeada		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB9A 10116 bytes

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