Malicious PDF — malware analysis report

Static analysis result for SHA-256 89c0540f5d19eaba…

MALICIOUS

PDF

72.6 KB Created: 2021-02-25 19:23:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0cb03353a756a30000cad3c1b1465deb SHA-1: 57d8378b491f4b6d0ff9df66b854ff35d5fcb5fa SHA-256: 89c0540f5d19eaba172ba30d5c8b9759c467312b0c2f2c94f2975f9e63671536
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/award?keyword=icom+ic-756+pro+3+mods PDF link annotation
    • https://cdn.sqhk.co/rogekanus/h9ijlid/rasufukudu.pdfIn PDF document text
    • https://cdn.sqhk.co/xelajura/ifihdgd/86994667289.pdfIn PDF document text
    • https://zerimesatevig.weebly.com/uploads/1/3/4/8/134879836/jukovomutedajet.pdfIn PDF document text
    • https://varijiligedag.weebly.com/uploads/1/3/1/3/131383591/lukodesurus_kokolaza.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/e5Kjdgf/my_home_design_dreams_mod_apk_unlimited.pdfIn PDF document text
    • https://vojumemij.weebly.com/uploads/1/3/4/4/134473557/2596512.pdfIn PDF document text
    • https://lulexabike.weebly.com/uploads/1/3/1/4/131407361/dubepe.pdfIn PDF document text
    • https://funesovikigaje.weebly.com/uploads/1/3/0/7/130740183/6110953.pdfIn PDF document text
    • https://jikesisepam.weebly.com/uploads/1/3/1/4/131406861/2838064.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463279/normal_5fce85f2c827e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484383/normal_602d7dba6df5d.pdfIn PDF document text
    • https://sabidodavo.weebly.com/uploads/1/3/1/4/131408103/886418.pdfIn PDF document text
    • https://fekanarikivokil.weebly.com/uploads/1/3/4/8/134884633/viwuxamo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377924/normal_5fe9322da334f.pdfIn PDF document text
    • https://zirakamu.weebly.com/uploads/1/3/1/3/131398357/aa483510.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/gafedupeba/anatomy_for_3d_artists_chris_legaspi.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/corinthians_uniforme_2019_20.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/essential_idioms_in_english_robert_dixson.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/facebook_messenger_cleaner.pdfIn PDF document text
    • https://s3.amazonaws.com/zatazewoz/apa_research_paper_outline_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/roforalineveluxanovake.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/neoclassicism_vs_romanticism.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/the_heir_affair_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/tukuloxibusojusok.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_off0000dcff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFF 5468 bytes
SHA-256: cedd5250f49ebd63561e2ed1d15cd9c97f60187b493acc13f267537384b605e7
font_01_sfnt_off0000ef90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF90 11104 bytes
SHA-256: 293da4c5c7152c0ea9daede392d7738f62c12fbfd1fe24f5206ce8d917bfcd91