Malicious PDF — malware analysis report

Static analysis result for SHA-256 532c6c500f695c1a…

MALICIOUS

PDF

70.2 KB Created: 2021-02-13 16:54:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 205c7c285d28b31badcf48c6a2c5bdcd SHA-1: 4f2ec1d80a1142bd131ce1440c079a93e7e888e4 SHA-256: 532c6c500f695c1af38faa16e5b92e27a9fed23d8112540ce7aa858b28cd2ab5
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=black+mart+apk+2020 PDF link annotation
    • http://steblin.pro/tamil_letters_worksheet_for_grade_1wdx35.pdfIn PDF document text
    • https://cdn.sqhk.co/litalile/5Jnf0Yw/17730868014.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446289/normal_600141e06999d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381531/normal_5ffd4e77bc6b1.pdfIn PDF document text
    • http://lnstagramsupportingcenter.com/lyce_louis_barthou_pau_formation3ebym.pdfIn PDF document text
    • http://datab.vip/35995200873e2fk4.pdfIn PDF document text
    • https://cdn.sqhk.co/bofilewidil/X8DuMqH/rugby_league_19_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/badexejos/h1jcn0X/nabobowu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416802/normal_600d56b992296.pdfIn PDF document text
    • http://markettop.pro/jegalifofoya9xa.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/sepovutapakogaf/homographs_exercises_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/70258301770.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/bread_slice_guide_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/wiwupajuvibivik.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_off0000d726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD726 5288 bytes
SHA-256: d7fe95d2ca5a89cecec7e8b5ab99009be88c9acfb764103edab384b1d769c9ff
font_01_sfnt_off0000e910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE910 10336 bytes
SHA-256: 3c55a0ca80b8207d5dc00f2f2c0d2be92f621a463a3d8742833081202831608e