Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e7f5f8ea515cdd…

MALICIOUS

PDF

68.4 KB Created: 2021-02-16 05:15:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9c71a7638a63d501409dbb614728da30 SHA-1: 73f95337f879e791da136e6765a9c9da14852825 SHA-256: 30e7f5f8ea515cddb671e092a663849b822daa7a55729a7caa94f14867de32ca
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/wix?keyword=omnitech+12-sheet+cross-cut+shredder+size In PDF document text
    • https://static.s123-cdn-static.com/uploads/4375514/normal_60070f20265db.pdfIn PDF document text
    • https://cdn.sqhk.co/latosagax/nhhjhcI/ice_prince_top_10_songs.pdfIn PDF document text
    • http://velixone.66ghz.com/columbia_river_fishing_report_today.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366005/normal_5ff2d88963178.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476445/normal_5fcbf34ebc7c7.pdfIn PDF document text
    • http://makululi.iblogger.org/62174106906.pdfIn PDF document text
    • http://metagopu.22web.org/45595301959.pdfIn PDF document text
    • https://cdn.sqhk.co/popuzanuguw/gcqZhe3/14922255695.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/8OGgdPf/cookie_cat_song_lyrics_steven_universe.pdfIn PDF document text
    • http://tosanigepa.iblogger.org/fannie_mae_guidelines_for_student_loan_debt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448337/normal_60121e18100b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381978/normal_60209673d9ccd.pdfIn PDF document text
    • https://cdn.sqhk.co/komagiju/hgjiKge/rijaxapamo.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/gezejoputiwinu/xujexume.pdfIn PDF document text
    • http://mobotifiriw.epizy.com/nutville_horace_silver_sheet_music.pdfIn PDF document text
    • http://fuvituze.epizy.com/zetezovudolikidu.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/chick_fil_a_menu_nutrition_guide.pdfIn PDF document text
    • http://jaxages.epizy.com/51522577686.pdfIn PDF document text
    • http://jiporiri.rf.gd/mexomarom.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_off0000cd93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD93 5232 bytes
SHA-256: 015b01c2ca3c66851ea6ab91677c4bab98113e19cf153d69f6352ce6fda2e269
font_01_sfnt_off0000df4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4B 10428 bytes
SHA-256: 96587ff3536a8d93d847b4016c65b5939720ff6aebb2c6a5810e24de466a66d2

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