Malicious PDF — malware analysis report

Static analysis result for SHA-256 0617d07495fee021…

MALICIOUS

PDF

82.9 KB Created: 2021-04-02 06:34:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ec7a1a44b84a65f88e4fa54b454217eb SHA-1: 9aa130f86c21ec2d74c6672be0d264bbe6ec7c6e SHA-256: 0617d07495fee0214c9ae5eccd3f6141c3818e195aa1f1cd67d99373ff5b034c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://kuzutuzo.ru/award?keyword=apprendre+allemand+pdf+gratuit PDF link annotation
    • https://cdn.sqhk.co/belesobikezi/egdNxig/bounty_hunter_cowboy_theme_tune.pdfIn PDF document text
    • http://profaudit32.ru/62690336044kqfej.pdfIn PDF document text
    • http://idealica-uficialeitalia.website/72703711466y8jms.pdfIn PDF document text
    • https://cdn.sqhk.co/pinuwinepasu/hfYgcgj/meaning_of_life_form_in_biology.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://profaudit32.ru/leadership_theory_and_practice_8thp3bso.pdfIn PDF document text
    • http://5coupon.info/73908259055dqoug.pdfIn PDF document text
    • http://smartcreditcheck.info/82232160731y3b5z.pdfIn PDF document text
    • https://cdn.sqhk.co/zeritogekuja/T3ijvif/98956935300.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/tiluwisulepam/73261838585.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2fbfd7a-51d4-415b-b3f1-74ea9fa83502/how_to_clean_antique_clock_movement.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/63843303416.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/three_tier_data_warehouse_architecture_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/puzzle_game_master_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/030f5a64-a956-463d-af25-ad85fadd5e1d/how_can_we_measure_the_efficiency_of_an_algorithm.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/88086844485.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/gojikowoseg.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/jumble_crossword_puzzle_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/wisconsin_child_care_forms_and_publications.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/kidde_firex_heat_alarm_manual.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_off0001029f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1029F 5172 bytes
SHA-256: 6878c18495a90ee03b6ca7da12695c6de12b812a55df8b6cf692315c8cd71617
font_01_sfnt_off00011426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11426 13088 bytes
SHA-256: ef507c52b2e84fbf93c0dcb99b578ce182c953c96ccc2830c9e1fe6f271d3992

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