Malicious PDF — malware analysis report

Static analysis result for SHA-256 f01f38f9ad93817a…

MALICIOUS

PDF

80.0 KB Created: 2021-02-26 16:39:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f61b6c5d0a001dfa4e14f2115e7fa55e SHA-1: 8b95cab8a842bad40dc6bc0a562cdaac05dce89b SHA-256: f01f38f9ad93817a7b18a6e6f7cae83504a45c798ef6104af459986cfb8bd19c
136 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
  • 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://druttle.ru/123?utm_term=what+is+the+psychoanalytic+theory+of+literary+criticism PDF link annotation
    • http://de-bewertung-id-q2e5t23.top/93099390906yxtyw.pdfIn PDF document text
    • http://hdvideo.design/26_gauge_galvanized_steel_sheet_weightx33cb.pdfIn PDF document text
    • http://myirn.icu/15888556859xh6tl.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/rakabexozu/64118629393.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/type_b_boy_scout_uniform_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/77722647339.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/jixadoxafapove.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/films_en_op_netflix_lukt_niet.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/45642287974.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/87463111865.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/apresentao_ppt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/fatebo.pdfIn PDF document text
    • https://s3.amazonaws.com/saziwijaxodav/95924127272.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/rakojikus.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/oxford_english_dictionary_premium_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/what_position_can_a_14_year_old_work_at_chick_fil_a.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/ielts_writing_general_test_samples_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/good_animation_apps_for_pc_free.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_off0000faf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF4 5372 bytes
SHA-256: 93fc6d2249c8adcafd774da7f4e67e9077ceb075b1e88169f58279b603a48af7
font_01_sfnt_off00010d24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D24 11272 bytes
SHA-256: b1932eee36acad6d5103e8853e5770f27eb4d5b2e4aa3102ed33ed2eab4d5f72