Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f81541a9594420…

MALICIOUS

PDF

71.2 KB Created: 2021-02-28 14:44:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2caec9d20858e9413bdbbed027396a73 SHA-1: 7b5e4928ec8e607bfae86ddd5d3fb884e1219a92 SHA-256: 47f81541a9594420bb76304bb162abbe5ec0924aa367b7e0e5bcaeef937db834
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://fokemale.ru/award?keyword=what+is+environmental+impact+assessment+pdf PDF link annotation
    • https://cdn.sqhk.co/fofateze/eMqSReU/off_road_racing_mmx_hill_climb_game.pdfIn PDF document text
    • https://cdn.sqhk.co/rebiguta/onIanjb/94079156314.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389074/normal_5fc908f354767.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/its_never_easy_to_walk_away_let_him_go.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376096/normal_60290a68dbeef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460263/normal_5ff26082257bd.pdfIn PDF document text
    • https://cdn.sqhk.co/lupobikud/Uijhegj/63717504304.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/tuletivotarupu/58914775287.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/nomobobepixomiwuxor.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/news_aggregator_platform.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/spreadsheet_for_windows_10_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/financial_policies_and_procedures_template.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/journeys_out_of_the_body_review.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/aur_aahista_kijiye_baatein_album_song.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_off0000dbfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFE 5468 bytes
SHA-256: 52ab7d1f9033d7d4e0bae81d876c023de3c7d9641c11c9dd7f06aa06756c8e3c
font_01_sfnt_off0000ee7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7D 9852 bytes
SHA-256: 1c4e9bbd0711896c421a1b83b58a4df5c75babc5051c4efffb28897f4dd57b65