Malicious PDF — malware analysis report

Static analysis result for SHA-256 38a8f10104473bf8…

MALICIOUS

PDF

73.1 KB Created: 2021-02-25 05:10:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6814ae5b487fc43fc15ff3cb512c7bfd SHA-1: 80cf7987105c211d910fa4df5db37fc74e1a1da3 SHA-256: 38a8f10104473bf883aa9d70e97a812c71713c0acb712f7417fcafc7e4228cdc
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/wb?keyword=beginner%20weight%20training%20program%20female PDF link annotation
    • https://cdn.sqhk.co/luwokiseg/iDjdQTz/dunuwujosu.pdfIn PDF document text
    • http://pojoxigi.iblogger.org/bollywood_old_movies_in_bluray.pdfIn PDF document text
    • http://remontlegko.info/fetozezinucgyjt.pdfIn PDF document text
    • http://nimolebefiv.22web.org/verbos_comunes_en_ingles_presente_pasado_y_participio.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzosiboweja/6Mmibwu/tv_show_quiz_questions_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/I08Nibl/doxeworidu.pdfIn PDF document text
    • http://llloooodddd.space/pemonewivugupezuvixeparbixv1.pdfIn PDF document text
    • http://kopuvimu.scienceontheweb.net/oracle_11g_sql_developer.bat_not_found.pdfIn PDF document text
    • http://dogalijun.scienceontheweb.net/baofeng_uv-5r_illegale.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/labitajaxatufib/gantt_chart_template_xls.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/tga_gmp_guidelines.pdfIn PDF document text
    • http://saxodanokijaj.atwebpages.com/fiber_optic_communication_book.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/65400567122.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/post_cardiac_arrest_hypothermia_guidelines.pdfIn PDF document text
    • http://babokad.epizy.com/herniated_disc_medical_report.pdfIn PDF document text
    • http://bifakafuwal.rf.gd/petuzerukuzejajone.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/bollywood_new_song_dj_remix.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/7437186182.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_off0000e129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE129 5276 bytes
SHA-256: c3b922ea4ac531dbec4fcab76d8e78e4e2e88935f586bd5dcd24834dee1daa52
font_01_sfnt_off0000f30b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30B 10684 bytes
SHA-256: 0cd6b064b167e2af758028dee44ad892f2b9cf8c2d78f5d6be3b0cf7f61be89a