Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2009becf5ea7147…

MALICIOUS

PDF

63.1 KB Created: 2021-01-29 22:09:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e88361a28581e36929493e195e74915f SHA-1: fac09b247e837fd752a71c9b7245a5ec2bc53495 SHA-256: f2009becf5ea7147daa1ccebc8599561d94bab233f7432708606eb61d383e556
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://crophysi.ru/aws?utm_term=shalom+aleichem+piano+sheet+music In PDF document text
    • https://cdn.sqhk.co/gotirawuz/fGhbghZ/starfish_story.pdfIn PDF document text
    • http://secret-empire.ru/708183273107rkxz.pdfIn PDF document text
    • https://cdn.sqhk.co/rojozedofaf/bfjyxmA/2024356609.pdfIn PDF document text
    • https://cdn.sqhk.co/xupixawina/gihjgPF/3205784557.pdfIn PDF document text
    • https://cdn.sqhk.co/gumakulex/jhgdxaF/ludo_game_online_with_friends.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/ctQchdC/stickman_fighting_games_free_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/difanemifal/jhzjffz/seagm_gift_card_xbox.pdfIn PDF document text
    • https://cdn.sqhk.co/telivagawu/o3gjlmX/nipedebogirazejakobijid.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/MtgIjhg/free_video_to_gif_converter_iphone.pdfIn PDF document text
    • http://look-hotel.com/705559971661tncp.pdfIn PDF document text
    • http://vannabanyavsedela.xyz/laser_tag_quest_near_meijywl.pdfIn PDF document text
    • http://geosen.net/grok_learning_answersp12v3.pdfIn PDF document text
    • http://proita.space/abnormal_psychology_17th_edition_freek4jiu.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/igcjaig/66645434501.pdfIn PDF document text
    • http://tumbaa.space/best_lightsaber_companysm20d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000b961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB961 5180 bytes
SHA-256: 644245e44e67f860a021c3d2f2c05383a52829860f6d299fd80352c10813e388
font_01_sfnt_off0000cadd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCADD 10816 bytes
SHA-256: 7561c64047e15d6a22d0dd8b16bceae944b3b2d8058eee22d92807eed157cb06