Malicious PDF — malware analysis report

Static analysis result for SHA-256 98e4175bed6c4340…

MALICIOUS

PDF

69.3 KB Created: 2021-02-26 17:46:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: db2e163105e41dd883b386e6630b6edc SHA-1: 65451a091a44ad871eb4bde88f0d6461bcadbeff SHA-256: 98e4175bed6c43406a573272a81296f9e0e8ded9465507c55a88c31a472f6898
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/wb?keyword=eleanor%20and%20park%20audiobook%20chapter%201 PDF link annotation
    • https://cdn.sqhk.co/tevunufoba/1sphjaK/manic_panic_alien_grey_near_me.pdfIn PDF document text
    • http://yoganchik.space/judawirorurarawumigupip7fcy5.pdfIn PDF document text
    • https://cdn.sqhk.co/bozawenibiwa/zjbgiij/cross_roads_baptist_church_valdosta_ga.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/giu9Uhi/vaxurolefakufuvo.pdfIn PDF document text
    • http://picsonair.com/hp_probook_4530s_product_information_not_validcik26.pdfIn PDF document text
    • http://stopro.store/tyrolia_attack2_13_gw_bindings_2021snmiu.pdfIn PDF document text
    • https://cdn.sqhk.co/tavedikovo/WjcvxuX/4114977353.pdfIn PDF document text
    • http://hookup153.online/daponabenarokudogizabpbewc.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/dogazisuze/atheros_ar9271_wireless_network_adapter_drivers.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/53892132270.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/mafisoxojuronijikob.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/27192310360.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/adjective_to_adverb_form.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/pending_app_store_android.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/taxable_fringe_benefits_guide_2019.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_off0000d3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C1 5196 bytes
SHA-256: 6fc978dceb8372306725578ace1338ff55285104bf25d1a2d8f8bf3ea69403b1
font_01_sfnt_off0000e565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE565 10300 bytes
SHA-256: 9d8b84452609b017d04abaf0e604e826be85840d03526e58a9cd007c6b06f578