Malicious PDF — malware analysis report

Static analysis result for SHA-256 4392a482f64188de…

MALICIOUS

PDF

80.7 KB Created: 2021-01-18 18:05:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 87f30dbf3f0510914a7c29aa5970c87f SHA-1: 813494e7b0487ceb01d4ddf5281171afa9af2db6 SHA-256: 4392a482f64188defaa1da7b08d180098f85c0e5ff1f2cb195f89f110395b548
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://druttle.ru/aws?utm_term=horde+classic+wow+fishing+guide PDF link annotation
    • https://cdn.sqhk.co/vujenibolo/gjzhdU3/76700229670.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/dFHNmhi/38942044014.pdfIn PDF document text
    • http://zamividiwido.22web.org/taxuzafalirumi.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/ihfC4Rp/sabasoteratemibujepobexug.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/S5Djggd/bapupupemovitiwejakize.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370778/normal_5f98710dcfd90.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/gjvdqae/world_cricket_championship_2_wcc2_similar_games.pdfIn PDF document text
    • https://cdn.sqhk.co/fazejitev/8TghTOX/62851232651.pdfIn PDF document text
    • https://cdn.sqhk.co/fadanade/XERkSF8/offroad_outlaws_mod_apk_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/kixarozikej/geifijI/37400527672.pdfIn PDF document text
    • https://cdn.sqhk.co/malofavu/5v2Z9CJ/limbo_significado_espanol.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxogatuv/8QibQwV/6376239132.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kizuwopo.epizy.com/6109694130.pdfIn PDF document text
    • http://tikolikenugim.epizy.com/blender_sculpt_addon.pdfIn PDF document text
    • http://kadinox.epizy.com/innovation_definition.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_off0000ffdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFDF 5336 bytes
SHA-256: be787c4b9ed8dc71d08fe54407b05ac68fedf2f0e5b653248d88081a5e595bff
font_01_sfnt_off00011211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11211 10640 bytes
SHA-256: a72e813c3a65685b9bc4f359270016d311bfd188d765717dfe6b2280c8471157