Malicious PDF — malware analysis report

Static analysis result for SHA-256 21ac6e0ea7ace58d…

MALICIOUS

PDF

71.7 KB Created: 2021-02-23 01:02:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e80058281e6bafdce8f7a41cfaca2c50 SHA-1: bc591a6ae65be32ba115a8cc8df6b46f2be0b543 SHA-256: 21ac6e0ea7ace58daeeeda2262d03fd9f5d96bfd93216bde792bb04d71b09edf
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=hero+wars+codes+2018 PDF link annotation
    • http://odemebayisitrafik.com/akshara_birthday_song3p1j9.pdfIn PDF document text
    • http://eushopvmn.site/vidonugalovanuf9ap3n.pdfIn PDF document text
    • http://slamelina.website/broiler_management_guideg0qrr.pdfIn PDF document text
    • http://sendgrid-de.com/pogafepejedesojodezu5b6.pdfIn PDF document text
    • http://app-3null.com/how_do_i_connect_my_hp_laserjet_p1102w_to_wifi5y271.pdfIn PDF document text
    • https://cdn.sqhk.co/venitalobeni/ehdiaJa/nations_in_combat_1._3._2.pdfIn PDF document text
    • http://infonewsuk.site/wechat_appeals_court8i4nx.pdfIn PDF document text
    • http://100p-f.ru/11009618665paam2.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/vedexajawo/heartland_episode_guide_season_4.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/14961894139.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/vumowovotijibuwoto.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/how_to_read_a_knitting_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/defegiwudibap.pdfIn PDF document text
    • https://s3.amazonaws.com/pojikovewijeja/video_perang_belanda_indonesia.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/format_code_in_intellij_shortcut_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/relion_blood_pressure_monitor_hem-741crel_4.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/canon_eos_m50_mirrorless_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/49279661965.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_off0000dce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE3 5476 bytes
SHA-256: 1e423d9c775979668b35d68f114fd58db8d975dcf8637871f5e4ef5a504edee6
font_01_sfnt_off0000efa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA0 10072 bytes
SHA-256: 340f33fd4834ddc13638468ba170f67b9e06fb63bf4a09fd69e1bf9f5353e104