Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed135b8077deb371…

MALICIOUS

PDF

69.3 KB Created: 2021-03-04 07:58:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: adfe5c3c9eac4844ab67ace71f2cf1fc SHA-1: 4fa1907abee8f07152e7a2b49b72f24230f663f3 SHA-256: ed135b8077deb3717f3cf58d7cac1e12d222cf877e4cf54d8db8b60b03a05a12
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/award?keyword=peavey+vypyr+vip+1+instructions PDF link annotation
    • https://dexazime.weebly.com/uploads/1/3/1/4/131437554/nexifenifexovur_zimurexovipibaj_gijevagedobejib.pdfIn PDF document text
    • https://xuvunigito.weebly.com/uploads/1/3/1/1/131164310/29bab6b559.pdfIn PDF document text
    • https://cdn.sqhk.co/kagalitisup/7jc2YK7/jungle_waterfall_live_wallpaper_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/higieuk/nezewoludemi.pdfIn PDF document text
    • https://dasiwijumajofep.weebly.com/uploads/1/3/0/7/130739595/gorowuwos.pdfIn PDF document text
    • https://jeputuzomum.weebly.com/uploads/1/3/1/3/131398597/pubiguvore_genafoliluv.pdfIn PDF document text
    • https://sexuviruzimi.weebly.com/uploads/1/3/2/8/132814305/f9878a4.pdfIn PDF document text
    • https://pegiromilu.weebly.com/uploads/1/3/4/6/134683304/89f5d1d6cf6.pdfIn PDF document text
    • https://cdn.sqhk.co/zaliroded/hg4Mugg/power_warriors_9._0_download_apkpure.pdfIn PDF document text
    • https://fenatafu.weebly.com/uploads/1/3/1/6/131637570/vamavovinasax.pdfIn PDF document text
    • https://cdn.sqhk.co/vaziworab/Mjdyhev/survivalcraft_2_day_one_descargar.pdfIn PDF document text
    • http://fekabonan.22web.org/krapps_last_tape_summary.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/voxulija/barbie_girl_wallpaper.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/herron_todd_white_cairns_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/dish_network_tv_guide_tonight.pdfIn PDF document text
    • http://vigevelo.rf.gd/halogen_bulb_fitting_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/tefizogufivet.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_off0000d4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A3 5112 bytes
SHA-256: 729e96e28dde87d23eb564092cbdbff1ca4edb77921fb1b134255c0fcb1869da
font_01_sfnt_off0000e62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62C 9844 bytes
SHA-256: 58df76daa0a6cc6e2fd54ca2856b6f7a0707d70d87f135ff60f95d3bd1c98787