Malicious PDF — malware analysis report

Static analysis result for SHA-256 59aef2f02310717a…

MALICIOUS

PDF

70.4 KB Created: 2021-01-23 19:48:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 506fd1b4ab049ac200632e049fb66756 SHA-1: f33356c79ed2cb148fb3f6d02710231277e25b2b SHA-256: 59aef2f02310717a7493f6b7997a679de0d0d22a54b08d40396354d8b9985927
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://trafficel.ru/123?utm_term=ffxiv+macro+commands PDF link annotation
    • https://site-1178602.mozfiles.com/files/1178602/spiral_rollers_for_short_hair.pdfIn PDF document text
    • https://site-1171990.mozfiles.com/files/1171990/health_and_wellness_coach_certification_programs.pdfIn PDF document text
    • https://site-1171753.mozfiles.com/files/1171753/sisters_thai_potomac.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/loranoduzuja/72901944871.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/bootstrap_select_form-_control_style.pdfIn PDF document text
    • http://nefaped.epizy.com/calma_remix_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/katenoruz.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/gumexafafituruzi.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/79748338154.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/23285139438.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/application_format_for_law_internship.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/car_games_for_laptop_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/demovilutudopere.pdfIn PDF document text
    • http://tavejetenugaku.epizy.com/66400028954.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/6320646278.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/bhojpuri_song_2019_dj_mp4_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/really_hard_questions_to_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/ccna_security_2018.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_off0000d5ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5EF 5216 bytes
SHA-256: ec198cd46a659f20bed5eb4e829d5002c960344f36398aa1168ec104b9a7b2e7
font_01_sfnt_off0000e7a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A3 10848 bytes
SHA-256: 319c94ec8cd03d81e8dccac815c88f34b3c18cc04a081f6e616ee1fdc62d66f5