Malicious PDF — malware analysis report

Static analysis result for SHA-256 65db20c27bc08e2a…

MALICIOUS

PDF

67.3 KB Created: 2021-02-13 20:19:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 30b3cb2118a972167b2fa936f0b9116e SHA-1: b1902ec76d6306e4ea02ec5700c583198d59618d SHA-256: 65db20c27bc08e2a3de66622a6b83c98b39681296777b7cf2ba2b84da9d072d7
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://baarspo.ru/aws?utm_term=biology+short+questions+answers+for+class+11 PDF link annotation
    • https://cdn.sqhk.co/vobilurerire/ehfnW4Y/bmc_software_houston_location.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485703/normal_5fecb700c72cc.pdfIn PDF document text
    • https://cdn.sqhk.co/masunidupag/XigggjD/the_sims_3_cheats_skills.pdfIn PDF document text
    • https://cdn.sqhk.co/viwiratoposu/hUgciaa/best_hair_clipper_prank_app.pdfIn PDF document text
    • https://cdn.sqhk.co/wupifufexix/iejcVgz/car_operating_cost_calculator_australia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405193/normal_6019f289c6520.pdfIn PDF document text
    • https://cdn.sqhk.co/definuseju/hgQ66ij/balega_enduro_quarter_socks_review.pdfIn PDF document text
    • https://cdn.sqhk.co/sesumaku/PhdjffS/gatuviwi.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/ajdih3d/walmart_early_black_friday_sales_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/merivexasug/ibiedPr/nepokuwalolubiwuguv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472208/normal_5fdecaa610da1.pdfIn PDF document text
    • https://cdn.sqhk.co/fedovipawe/8Pviijd/oscar_wilde_nyc_menu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370059/normal_601aad8580b7d.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxegaxujifo/hccejiJ/real_car_racing_games_for_pc_free_download.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/mamukawaxatali/reinforcement_worksheet_atomic_timeline_answers.pdfIn PDF document text
    • http://zetijub.epizy.com/iphone_6_emulator_for_pc_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/how_do_you_answer_hey_whats_up.pdfIn PDF document text
    • http://niguroxutoginef.rf.gd/22962513815.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_off0000c911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC911 5564 bytes
SHA-256: af5265df0097d55c6ba92a8cb48b145a27c3bbfd0f4bd3a10112ecde7d1d56ff
font_01_sfnt_off0000dc1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1E 10456 bytes
SHA-256: ee3e9d1a10165f7d0bec2b9c6a8a918c356d3be374051316188b1b4ca626334d