Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d46841de6c73340…

MALICIOUS

PDF

70.1 KB Created: 2021-02-02 04:34:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a538988068a89e8b9f04e7f858802e95 SHA-1: 6bb0951b4819a13220f6b774653ab72c5252914f SHA-256: 7d46841de6c7334088ef2fc796f63bcfb15b797ada7102c66e87c3f0b84f3d86
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://jacksth.ru/aws?utm_term=kelpstone+battle+pet+guide PDF link annotation
    • http://wordwild-store.com/75984183873821bn.pdfIn PDF document text
    • https://cdn.sqhk.co/kenoramof/0he5RBG/vector_full_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/PrlsidE/mcdonald_s_maine_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/patemugimej/6upghje/ads_b_flight_tracker_app_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/iehhWib/off_the_rails_3d_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426415/normal_5ffad05878cf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457318/normal_5fdbc35e24b59.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/f0jcage/cleaner_for_instagram_unfollow_pro_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/iragfhi/80222191223.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/AgejhjT/white_lemuroid_possum_habitat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370560/normal_5feb54378ae16.pdfIn PDF document text
    • https://cdn.sqhk.co/mukujoripu/hfhfG1u/remove_unwanted_objects_from_photos_free_windows.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380068/normal_5ff27772d9326.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zegemipufe.epizy.com/7550962652.pdfIn PDF document text
    • http://fipamopiwip.epizy.com/42479707889.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_off0000d5a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A5 5140 bytes
SHA-256: dcbc1c1cda95715ebcab76ae5c88526fa0b7c3c4da15458a62bb1c24c53368ec
font_01_sfnt_off0000e72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72E 10764 bytes
SHA-256: 35513f6f5a05fff47caddab547f001364b65b8ed63028db2e0cb7e1b95b9bee8