Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0fba0fb8230373c…

MALICIOUS

PDF

81.3 KB Created: 2021-02-24 05:50:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ad9207b3061146e979af99301e69ad1d SHA-1: cd93aaeda0d2f74cec582349438ef732fe3e8f80 SHA-256: d0fba0fb8230373c8486a86d8a36df46ee1bb69f79c3594e9ef6dfbae7c86bb5
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://baarspo.ru/aws?utm_term=best+japanese+cookbook+guardian PDF link annotation
    • http://lnstagramverificationbadge.com/92270316416enjoh.pdfIn PDF document text
    • http://newser.site/who_holds_the_book_of_lifeozezs.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/djb3hvx/teninijavezumupuloreli.pdfIn PDF document text
    • https://cdn.sqhk.co/nulusezitelo/cjjRjaH/digi_hq_kl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403679/normal_60130b8100c85.pdfIn PDF document text
    • https://cdn.sqhk.co/jumupebuvi/edNSjbi/quick_weight_loss_7_day_diet_plan.pdfIn PDF document text
    • http://allieshouseofhope.com/cuantos_litros_equivale_un_metro_cubico_de_gasb57pf.pdfIn PDF document text
    • https://cdn.sqhk.co/rowazazapa/5gejfPH/94035752770.pdfIn PDF document text
    • http://train-home.ru/mail_merge_with_attachments_word_2016lvnu3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392664/normal_6004943250d3a.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/zomuzigo/kerunaganomamorapawusalo.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/lamowegananaf.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/ardaas_2_movie_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/apple_corporate_identity_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/championship_manager_98_99_mac.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_off0000fd66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD66 5540 bytes
SHA-256: 67903af951cfad19ebf660f30d58a5a3604b157838b028cd3e0fb11a81a98efc
font_01_sfnt_off0001104a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1104A 12092 bytes
SHA-256: 5a62813748d6a3d9e91180c179ba202b4d5221ce981984d0ec4bdad783a92c14