Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed967bbd584bb22b…

MALICIOUS

PDF

74.9 KB Created: 2021-02-18 20:42:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bda00e50b3cdcfb655de3389a2df220f SHA-1: e4f3cd97bce8ec3024528bd97246060ec6528ff4 SHA-256: ed967bbd584bb22b04b7f2af05364b8e04bae9e706a75b60fad23dedd4e990b7
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=the+sisterhood+of+the+traveling+pants+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4529149/normal_60152dfa9899f.pdfIn PDF document text
    • http://madusotiju.22web.org/bahubali_1_telugu_audio_songs.pdfIn PDF document text
    • http://kanurapubefuxo.iblogger.org/15742029104.pdfIn PDF document text
    • http://rabusog.22web.org/hot_air_balloon_guided_meditation.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370740/normal_5fe7efde64404.pdfIn PDF document text
    • https://cdn.sqhk.co/sizebadit/E2Hrjaq/bluestone_perennials_bulbs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470218/normal_5fdd94ce2f449.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_601be0b772739.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/jitimesolagun/uc_browser_mini_browser.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/21553587224.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/free_loan_calculator_for_mobile_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/laredo.pdfIn PDF document text
    • http://masuroti.rf.gd/22341551605.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/bekhayali_mein_bhi_tera_khayal_song.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/netacad_packet_tracer_6._2.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_off0000e7b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B3 5312 bytes
SHA-256: 4c46fd1f405f4142e6786d93d388e0beeb33d1b6597c7e1144d5d7e55c25908a
font_01_sfnt_off0000f9ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CA 10740 bytes
SHA-256: f1a93e39c1c8655612257fb59e7abe5bf248096c9e79a1b4a0fb8e99f3067ce7