Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bd5e9ad9a28cc1c…

MALICIOUS

PDF

69.6 KB Created: 2021-02-04 19:44:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: f4ea79bbcd0b7054bc2872fac995189a SHA-1: 380bef896d1bff2525d32e611a4b9a1ff1b83b8b SHA-256: 3bd5e9ad9a28cc1c62bf4081b83b792aec80877de4d14893f392cb16b34f4529
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://jacksth.ru/wb?keyword=bottines%20noires%20plateforme%20femme PDF link annotation
    • http://qqkaxes.xyz/wededubefipovujibilaludem7ubr.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/gfiihgh/free_logo_maker_app_for_ios.pdfIn PDF document text
    • http://pasasem.iblogger.org/boom_bang_bang_english_song.pdfIn PDF document text
    • http://herss.space/zibupozumibegimaxixirafuvf00el.pdfIn PDF document text
    • http://devicesprotectionforusers.site/239107115765f1x2.pdfIn PDF document text
    • http://talakam.space/papewolawabume0hufq.pdfIn PDF document text
    • http://lnstagrambusiness.com/dijetumaxovaqfvfh.pdfIn PDF document text
    • http://madewithsunshine.com/31547956730zdz1.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/tofizo/bambi_remix_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/information_memorandum_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/detipadufi.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/cursive_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/80606231275.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/best_text_editor_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/flambee_montalbanaise_sheet_music.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_off0000cd64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD64 5096 bytes
SHA-256: 9a4243b2e0ce709fa36e4f6ef292d0bac78fd5e93951aafc62613c10625df256
font_01_sfnt_off0000dea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA5 14708 bytes
SHA-256: f6f4188d14fbc36532de7e6831c28c98039b0c8df364495175810281bcec46df