Malicious PDF — malware analysis report

Static analysis result for SHA-256 92cc958ac839ad48…

MALICIOUS

PDF

69.8 KB Created: 2021-02-19 14:39:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 37a3fe714c62bbd1679562547a6b548f SHA-1: 2d745a9d7da171449fa718c7464c1233ff782d5d SHA-256: 92cc958ac839ad4857a140af576d7214d6d574de6743bb607210160b1c299ed3
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=map+of+south+east+queensland+regions PDF link annotation
    • http://tifusanesewo.22web.org/masugolip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464522/normal_60075e3b82ec0.pdfIn PDF document text
    • http://buvemalo.66ghz.com/davusatig.pdfIn PDF document text
    • http://mestorating.ru/apache_open_office_android_apk12q9k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/bose_soundlink_mini_manual_dansk.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/wusilasuzumadovizokar.pdfIn PDF document text
    • http://xapogoburotoj.epizy.com/53136409642.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/gegejozesekimo.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/sebetetarer.pdfIn PDF document text
    • http://derizarage.epizy.com/groupe_industriel_marcel_dassault_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/latitude_and_longitude_worksheets_for_grade_4.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/shell_scripting_interview_questions_for_experienced.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/synonym_dictionary_oxford.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/29565765756.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/32789464857.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/bevilosusesa.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/busybox_android_2._3._5.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/delta_royal_4_in_1_crib_instructions.pdfIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48D 5436 bytes
SHA-256: ef09237894d7d98fa6f22721ebb333f31067236d0f0ac02658eca9f2c76840a7
font_01_sfnt_off0000e706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE706 10264 bytes
SHA-256: 72bc4a560353b3fa773cb1e840f93b894e258ce0adea57bc81ccd4a5e3cb8498