Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2fe94fe9e8cf71…

MALICIOUS

PDF

70.7 KB Created: 2021-02-27 07:41:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: eb49b5de9654bf26b91fc52a01020587 SHA-1: 34ac98167a872bc815b5cf90aa742db24bd23ab2 SHA-256: 2e2fe94fe9e8cf71529aec05b68c520a2dd0a27c25ff0a16f26878b518b3ae58
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wb?keyword=tabla%20de%20equivalencias%20de%20medidas%20mm%20a%20pulgadas PDF link annotation
    • https://cdn.sqhk.co/fopeziriga/vyV8jcl/retomametabirogujofunem.pdfIn PDF document text
    • https://repitosa.weebly.com/uploads/1/3/2/6/132681506/098aa409b141b99.pdfIn PDF document text
    • https://cdn.sqhk.co/lutidofele/hbhjgiP/save_the_girl_level_28.pdfIn PDF document text
    • https://xefomivor.weebly.com/uploads/1/3/0/8/130814633/24c088.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/cvjbiio/mars_retrograde_september_2020_effects.pdfIn PDF document text
    • https://cdn.sqhk.co/dedikunakudu/eBj8hgR/26678669341.pdfIn PDF document text
    • https://lakaporizad.weebly.com/uploads/1/3/4/2/134234628/8084742.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/vatosolikijike/authorities_under_information_technology_act_2000.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/backshift_of_tenses_tabelle.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/define_information_asymmetry.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/guidelines_for_giving_blood_in_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/love_hd_full_screen_wallpaper.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/ziripogurolatelisakusafik.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/analogy_questions_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gajakelegeza/gta_5_online_money_cheat_pc_2020.pdfIn PDF document text
    • http://biziwinajivo.rf.gd/endow_with_spirituality_crossword_clue.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/tinker_island_riddle_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/22109955449.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_off0000d4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4DE 5572 bytes
SHA-256: 9ed0ee97f31e83758a019bcf5c2553c2add66678e74317dbb34b58bc11984c8a
font_01_sfnt_off0000e7b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B9 11016 bytes
SHA-256: cca2e865f6fb1ab97f7614a84d749a1e5ec3969fd019925989fa48cdd2ceb561

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