Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb8abbc4f4d4a88c…

MALICIOUS

PDF

66.2 KB Created: 2021-01-25 13:57:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 784cfbc8b8085d5c2516e35479b28cf6 SHA-1: 3e5432405dafbdb887ac9a44aefc6bbcef9ad8c9 SHA-256: eb8abbc4f4d4a88c2066626d221733eacfd5f9bd0c72e349bd70500d89e8b428
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://bologen.ru/123?utm_term=biederlack+blanket+with+snaps+and+zipper PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4444630/normal_5ffc0529026e1.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/cicuYij/abdominal_pain_and_bloating_irritable_bowel_syndrome.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxovunevo/Vijzxp3/kofofa.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/heUiagf/37466404557.pdfIn PDF document text
    • https://cdn.sqhk.co/mixenezir/ahdgfii/31212006869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417523/normal_5fea190071ffd.pdfIn PDF document text
    • http://meinekarten.best/among_us_wallpaper_new_hd_android3gfno.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486550/normal_5fd9c05faf0fd.pdfIn PDF document text
    • http://scandisvet.ru/54920365352tk7ku.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/9Ce8Gon/space_shooter_galaxy_attack_mod_apk_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371791/normal_600c9a7e6ebad.pdfIn PDF document text
    • http://lnstagram-helping.live/tip_top_meats_fish_marketk77i6.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/mutirexa/guideline_value_in_coimbatore.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/apoorva_sagodharargal_sad_bgm_remix.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/fazon.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/best_spreadsheet_software_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/opera_browser_free_vpn_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/balance_sheet_retained_earnings_owner_s_equity.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_off0000c7a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A7 5556 bytes
SHA-256: 3f13ede1e12d9bd70e4d46ddab9027c0ad2b0a7d49a60b287758513de4b58b67
font_01_sfnt_off0000da9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9B 9720 bytes
SHA-256: a40e0f5a2a71f6de1ccb68429eeeed3f3932c92bf74b96d61025febccb765220