Malicious PDF — malware analysis report

Static analysis result for SHA-256 12a646c30779dadb…

MALICIOUS

PDF

70.6 KB Created: 2021-02-24 11:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c5b1fc4733b1ca4261d7c40a04a0416e SHA-1: 180ee3a9190142ede1e9b6de25fa9e2e28847032 SHA-256: 12a646c30779dadb14269deceb4322ad298ffa9fee83a54a0a92f6a8eb6f897b
194 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
  • 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://crophysi.ru/wix?keyword=audiovox+091bpr+manual In PDF document text
    • https://cdn.sqhk.co/xuwolegu/51hijhR/zirisiruximefujobofu.pdfIn PDF document text
    • http://pokemonrivals.online/ninunemareputonotezycnx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376371/normal_5ff3149fd49e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372735/normal_5ffa9ae6b7f03.pdfIn PDF document text
    • https://cdn.sqhk.co/joxonorapa/ihjfPD4/gomolirinuj.pdfIn PDF document text
    • https://cdn.sqhk.co/xixumobun/gXDKagf/67705615207.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476281/normal_602aeb71f16d2.pdfIn PDF document text
    • http://vorecan.space/43093934779f5afl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465538/normal_5fd0a94741267.pdfIn PDF document text
    • http://pekebanabotariz.66ghz.com/31174096807.pdfIn PDF document text
    • http://itawomen.fun/pevelafenenuzedifenixenubtt26t.pdfIn PDF document text
    • http://mihetos.xyz/scion_demigod_character_creationewfrg.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/votuweroxigezog/muvujuwoseruxejadatiramo.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/star_ocean_anamnesis_global_apk.pdfIn PDF document text
    • http://zunebodiz.epizy.com/kolatemi.pdfIn PDF document text
    • http://towupew.epizy.com/91054910856.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/sumidu.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/kijipomup.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/panaka.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/chapel_hill_nc_police_department_accident_report.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/dropshipping_guide.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_off0000d82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82D 5536 bytes
SHA-256: 60420bd37182b3981bcae3f2482ca20a97e9897e8c85575f7471e49d5d32e4a6
font_01_sfnt_off0000eae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE7 10024 bytes
SHA-256: 7301ce02e62a878f4a48f9e87dd05900951cdd2e82a3b17729104c9b37f40f8f

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