Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e3265e8d3f7cc2d…

MALICIOUS

PDF

71.2 KB Created: 2021-02-27 13:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f135f89953d877e9bd9eb6a6a6fec4f8 SHA-1: 7a70dc5c8e5e1c3024d2e07ea9743adbba59324b SHA-256: 2e3265e8d3f7cc2dbca584aef68f6953f754a50c080c8bb524792d0fcd25c82b
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/award?keyword=club+car+onward+lithium In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368970/normal_6023e143f0ee6.pdfIn PDF document text
    • https://cdn.sqhk.co/baveninale/ThbQvgc/nail_biting_polish_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/boxepupovemu/8PvgeTE/good_fighter_jet_games_for_iphone.pdfIn PDF document text
    • http://lozomaneje.getenjoyment.net/harry_potter_quiz_buzzfeed_soulmate.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426954/normal_5fdebfc073d4c.pdfIn PDF document text
    • http://bcpzonasegur4viabcp.com/sazamifkbbqy.pdfIn PDF document text
    • http://mmeueue.space/manuxeritipojdqsw.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/cyihdcp/vitelineduw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471273/normal_5ffbad87e986b.pdfIn PDF document text
    • http://lebizifijafaxim.medianewsonline.com/international_law_commission_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/gotulurowav/aWkrbj8/rujanivepefovepivusi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394082/normal_600d323ebcbb3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464995/normal_5fecbe68f1d44.pdfIn PDF document text
    • https://cdn.sqhk.co/rovonoset/QkFjghj/xoloxovesurasaluzijato.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499334/normal_6023513bee653.pdfIn PDF document text
    • https://cdn.sqhk.co/lijipatalenu/0gjhgsz/tajesimoleputeg.pdfIn PDF document text
    • https://cdn.sqhk.co/mipemoku/jxheMv7/screen_recorder_with_audio_iphone.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD97A 5140 bytes
SHA-256: 340f000dd8b63d414e71af802ce40c704b05a83e76ab75b764d0283b754e0c0f
font_01_sfnt_off0000eacf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEACF 10488 bytes
SHA-256: b266f92762832d98b89de41192ff3074a3538ca39bcdfae5a3eb3c3deeeb16f8