Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb89afbf1fbdad41…

MALICIOUS

PDF

71.9 KB Created: 2021-02-27 12:44:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 30fb696979debe81dee7e7bc809d9716 SHA-1: 40c965335f8024ed1d4431f9858523fa60c626bc SHA-256: bb89afbf1fbdad419d4f55a2385a6e0895a8862ae220414c6d62bb47ea29c839
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://gimoguvi.ru/123?utm_term=how+do+i+change+my+liftmaster+garage+door+code PDF link annotation
    • https://cdn.sqhk.co/timemowab/VRhhWic/dead_effect_apk_obb.pdfIn PDF document text
    • https://cdn.sqhk.co/risevejuxik/Lybiigj/42040403869.pdfIn PDF document text
    • https://cdn.sqhk.co/xavonepez/yvTwLgf/whispering_woods_hotel_olive_branch_ms_38654.pdfIn PDF document text
    • https://cdn.sqhk.co/kebisozakola/yyygdhi/gibufemusupegine.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/jaEibhb/71096273449.pdfIn PDF document text
    • http://catsism.com/new_moon_in_aquarius_2021_astrology_kingtbpdp.pdfIn PDF document text
    • http://webdefilmizle.com/how_to_fix_a_watch_winder_boxnoim8.pdfIn PDF document text
    • https://cdn.sqhk.co/nosuterib/ghafGzy/rjr_jamaica_radio_fm.pdfIn PDF document text
    • https://cdn.sqhk.co/kulizuxekume/fgcfp0Z/best_zombie_shooting_games_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/ge9igjb/96264981049.pdfIn PDF document text
    • https://cdn.sqhk.co/dawadetugas/FhayWhd/98695604442.pdfIn PDF document text
    • https://cdn.sqhk.co/jelivapizivo/AYijVgd/video_player_app_download_for_android_mobile.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/bidemewufa/rozuva.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/switch_lite_vs_switch_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/wiwisubuwobogoxujizazalo.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_off0000db23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB23 5592 bytes
SHA-256: 701a58e299a3457e4c29239b2ccd12f6028fbcaded0d1e6b8ddac39bdbef4b0b
font_01_sfnt_off0000ee16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE16 10720 bytes
SHA-256: 916cf59a8e2a72004063e200a36023a616c84bcb400a324f2c1c69f797a113d9