Malicious PDF — malware analysis report

Static analysis result for SHA-256 63fe8d9a955b7b6b…

MALICIOUS

PDF

71.3 KB Created: 2021-02-06 21:55:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 03fdfb7431cd8219894f66d9a4aa51c7 SHA-1: c679d90519c25832fe6b30474d7f61b593569916 SHA-256: 63fe8d9a955b7b6ba77d2770bd2d68cf21d9752fb325885293dee780252cbbcc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=unfounded+cps+reports PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4482671/normal_5fd32c0deeeb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446166/normal_60039e037c9d1.pdfIn PDF document text
    • https://cdn.sqhk.co/jekidase/nn3tdie/drag_racing_boats_crash.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411923/normal_6004df5366e3f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496402/normal_5fc83520534eb.pdfIn PDF document text
    • https://cdn.sqhk.co/toromerepowa/Hgcidhb/funny_wrestling_2_player_games_wwe.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/pobixedele/anker_soundbuds_curve_owners_manual.pdfIn PDF document text
    • http://zijipowatik.epizy.com/34206018008.pdfIn PDF document text
    • http://pizubape.rf.gd/access_control_list_configuration.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/fourier_transform_infrared_spectroscopy_working_principle.pdfIn PDF document text
    • http://sosefamip.epizy.com/guided_imagery_relaxation_scripts.pdfIn PDF document text
    • http://nopatiget.epizy.com/android_hdmi_stick_fr_tv.pdfIn PDF document text
    • http://zubeleboju.epizy.com/server_dell_poweredge_r230_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/dreamweaver_8_gratis_full_version.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/creative_invitation_cards_templates_free.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_off0000db0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB0A 4900 bytes
SHA-256: 31843fe01a8f6cf0b648155492888dcde8bd03c2382101342effbdcdcc09914e
font_01_sfnt_off0000ebcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCF 10680 bytes
SHA-256: 83263a065c877e3d35a1dee225cd3c778cb08a0676fe3a5a58e750d5fac85eb6