Malicious PDF — malware analysis report

Static analysis result for SHA-256 4309b01fb844ea75…

MALICIOUS

PDF

72.7 KB Created: 2021-02-24 03:46:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 66e34bc6e4fb303b75b95da03a42941a SHA-1: 3f84b8f3d9a6de4f63d2fd4368f45f54dd1be5ef SHA-256: 4309b01fb844ea7536093b3886cfbe61c891b0456d23d0733fd4584a18dc90b7
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://jacksth.ru/wix?keyword=whiskey+words+and+a+shovel+ii+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4469860/normal_5ffd30290fb92.pdfIn PDF document text
    • http://votutatiturapat.22web.org/zagg_folio_case_hinged_keyboard_for_ipad_mini_4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382190/normal_5ffcf4bf20a56.pdfIn PDF document text
    • http://bopofefolinaw.22web.org/gafazuzuvavapinini.pdfIn PDF document text
    • https://cdn.sqhk.co/pozipulavat/aHWdicG/jezoresipexolotonitigaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lewafozilit.epizy.com/anime_super_power_terbaik.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/zojogux.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/atmega32a_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/riwazebekimidibagefafin.pdfIn PDF document text
    • http://zimemotom.rf.gd/cell_diversity_compare_and_contrast_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/proving_angles_congruent_worksheet.pdfIn PDF document text
    • http://ravawubiralimiw.rf.gd/el_arte_de_la_guerra_sun_tzu_pelicula_completa_espaol_latino.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/gagasoj.pdfIn PDF document text
    • http://pikawin.rf.gd/what_is_the_biggest_corn_maze_in_the_world.pdfIn PDF document text
    • http://gomiguru.epizy.com/gooch_housego_plc_annual_report.pdfIn PDF document text
    • http://kidogip.epizy.com/assured_shorthold_tenancy_agreement_template_scotland.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/rilonudixu.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/25246329058.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_off0000ddda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDA 5460 bytes
SHA-256: 717c823a09035dc36d769805de2277f699348410c2ca5cd4b853809bbc126a22
font_01_sfnt_off0000f088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF088 10700 bytes
SHA-256: e4d791bd14f60ad76af20aef86c625abe60791d4a5d1dc35855dfc34544c0167