Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8566c4c7fc0467…

MALICIOUS

PDF

71.9 KB Created: 2021-02-14 07:38:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4abce688158008324ac98a55ed6ce9aa SHA-1: 59c51f3831f071d5062a473abac63b70a46cda79 SHA-256: 0e8566c4c7fc0467088c2e0ed520c9f805c310a22f15b9d84eba9d3d5a36987a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=blue+devil+power+steering+stop+leak+directions PDF link annotation
    • https://cdn.sqhk.co/zukuxenopo/uyZ09ha/horizons_fcu_routing_number.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411932/normal_6010f169311e1.pdfIn PDF document text
    • https://cdn.sqhk.co/putizimetiwe/jdibege/guxabamatedak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415525/normal_5fcb69e518e73.pdfIn PDF document text
    • https://cdn.sqhk.co/muvuxaji/bqjg7Qr/69146431561.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446390/normal_6009b5c5e6c07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417992/normal_5fe76c2751ea7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501634/normal_5fe1327b00055.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/SSS4Hia/5_pounds_to_dollars_in_1920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5fdbe88f9e8dd.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/jowutoneranemuk/organic_chemistry_alkyl_halides.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/spontaneous_bacterial_peritonitis_treatment.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/annual_credit_report_telephone_number.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/pie_calcaneo_valgo.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/greensleeves_sheet_music_for_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/marathi_bhakti_geet_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/remittance_advice_email_template.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/automation_studio_6_64_bit_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/famuzuna.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_off0000dd0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0B 5504 bytes
SHA-256: 09358fd4afc13d6a0d02936a80daa8b8b272dab75650ee2720b0096684bfba0b
font_01_sfnt_off0000eff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF0 10136 bytes
SHA-256: 4888988f53fc4eafb44338b96e25151e7cb9e62fa70e3980af162b2ade0dac4c

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