Malicious PDF — malware analysis report

Static analysis result for SHA-256 5602bd60f8dbdfe6…

MALICIOUS

PDF

78.4 KB Created: 2021-02-16 02:42:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a9fe77eaaed8bfb9dac329c3f9978b1e SHA-1: d731706d27d2f3b52d7a4066c77fcefc0211e0ea SHA-256: 5602bd60f8dbdfe678f089b1f37e6df1831195b6a35d9cc27665ac0c322fe0de
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://jacksth.ru/wix?keyword=cuisinart+frozen+yogurt+ice+cream+%2526+sorbet+maker+recipes PDF link annotation
    • http://jakor.pro/mesusepudivasik0mg.pdfIn PDF document text
    • http://naturazuwedemoz.22web.org/labil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412999/normal_602ae096a59f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375350/normal_601846b485903.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/buwosevax/84658008308.pdfIn PDF document text
    • http://gisuvax.epizy.com/38188006952.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/new_telugu_janapada_dj_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/70488555374.pdfIn PDF document text
    • http://vodomuvukowoz.epizy.com/11357746801.pdfIn PDF document text
    • http://kuzebelinebofe.epizy.com/fipimudogeteri.pdfIn PDF document text
    • http://tanarodo.rf.gd/conclusion_lab_report_plant_tissues.pdfIn PDF document text
    • http://fuzidix.rf.gd/iiba_babok_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/car_accident_news_report_example.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/49196785295.pdfIn PDF document text
    • http://luzawuwu.epizy.com/solving_inequalities_with_two_signs_worksheet.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_off0000f709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF709 5228 bytes
SHA-256: 03eb5a3a95420cb135c5914ccef47016f5e82f78bc73c34e89bebc93f2478b95
font_01_sfnt_off000108d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D0 10528 bytes
SHA-256: d5e256424952b1a1ec183d2873ed22216da40b12447fd88d5b25ae2324da937b