Malicious PDF — malware analysis report

Static analysis result for SHA-256 45846d7ab8a3bb64…

MALICIOUS

PDF

70.3 KB Created: 2021-02-19 00:42:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d31dc5176b3f56f0a557fe19ceee73a2 SHA-1: e0a3c1e951392a8356c123b0b8267ce4e4961b60 SHA-256: 45846d7ab8a3bb648098c066e73d512880838246449c9274d2274788a581e570
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/123?utm_term=songs+from+les+mis%25C3%25A9rables PDF link annotation
    • http://pedrons.space/nuts_bolts_of_college_writingw801v.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/gjihjh3/gardenscapes_2_free_online_game.pdfIn PDF document text
    • http://nature-ital.space/fireman_ed_jetsvy1n1.pdfIn PDF document text
    • https://cdn.sqhk.co/pefevepufi/hhaVdhj/21437992489.pdfIn PDF document text
    • http://playmarket-online.com/purple_butterfly_images_freeu888j.pdfIn PDF document text
    • http://smotrikino.fun/kinetic_molecular_theory_of_gases_worksheet2gujs.pdfIn PDF document text
    • https://cdn.sqhk.co/govizanorev/gjbCzM2/file_manager_pro_android_tv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sitizef.rf.gd/bajirao_mastani_song_wapking.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/netflix_laptop_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/10811383280.pdfIn PDF document text
    • http://ruzifubetur.rf.gd/kekafikisojetodenev.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/gudeboxabuzi.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/66763973066.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/26346186711.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/toefl_exam_preparation_book.pdfIn PDF document text
    • http://bezepegu.epizy.com/hosanna_christian_songs_naa_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/avengers_theme_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/9307172295.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_off0000d4a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A9 5472 bytes
SHA-256: cb5a0857484c66a784969bf910ba10439b6aeaa0d6a541c8c252918c85bd8dca
font_01_sfnt_off0000e6e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E9 10532 bytes
SHA-256: cffce364eff08d00b44d7c662f35fdc23ccd9819233ab73c6a404cfe8db3c237