Malicious PDF — malware analysis report

Static analysis result for SHA-256 0edea5326f3d8919…

MALICIOUS

PDF

71.4 KB Created: 2021-03-01 07:37:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 493583ae7be690661886f6f824189299 SHA-1: 2e686afc0fdb91109c39941c18c7104d2d3e56f5 SHA-256: 0edea5326f3d891997b0394e4ad779b439937144338645eed0d8f18420bc9461
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/award?keyword=little+red+riding+hood+pdf+with+pictures PDF link annotation
    • http://begemotiks.fun/binomial_distribution_problems_and_solutions5olut.pdfIn PDF document text
    • https://cdn.sqhk.co/ramejolir/am8niiF/soccer_skills_videos_download_2018.pdfIn PDF document text
    • http://purpless.vip/vodarevena9an7h.pdfIn PDF document text
    • https://serijarivak.weebly.com/uploads/1/3/0/7/130776739/5366775.pdfIn PDF document text
    • http://vanlit.ru/pebuwovivuxalqk1cv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369933/normal_6006c55251c24.pdfIn PDF document text
    • https://ninisezidopif.weebly.com/uploads/1/3/5/3/135391617/1460917.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456143/normal_6035c4f1d6dbf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375886/normal_5feb34c77e81b.pdfIn PDF document text
    • http://shoop-fl.ru/gogo_live_app_not_workingecxh0.pdfIn PDF document text
    • https://cdn.sqhk.co/vakiduju/hcijgiJ/real_car_racing_game_download_for_pc.pdfIn PDF document text
    • https://ponirusorigimo.weebly.com/uploads/1/3/0/7/130738629/tivin-tetokowuk-zudubefab.pdfIn PDF document text
    • https://xixozikitep.weebly.com/uploads/1/3/4/0/134097223/741d64f03b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386087/normal_5fe05f3c40975.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/toniseligiwuzux/badmaash_company_video_song_hd_free.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/fillable_form_in_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/makixibawumebol/antivirus_360_mobile_security_gratis_para_android.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/41236463157.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/28195572424.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_off0000dbe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE2 5240 bytes
SHA-256: 46fac60c89830a3c93e733231e280dfe162849fa52fa90340c6ce02453fdafa9
font_01_sfnt_off0000edce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCE 10156 bytes
SHA-256: a6d21b25e847aafdcb7746a536ab19a4e556e5b5f4194d8c0cc07918a97148fe