Malicious PDF — malware analysis report

Static analysis result for SHA-256 77658e30c01bcaad…

MALICIOUS

PDF

68.2 KB Created: 2021-02-22 07:59:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 95436c5d7f509899747308e36f220ce4 SHA-1: d39fb7867497c28a953e97a0e29146a043d4733d SHA-256: 77658e30c01bcaad51b3549217dde0444ae6542434dc8c972613c7995f310271
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://baarspo.ru/wix?keyword=digimon+world+guide+indonesia PDF link annotation
    • http://potolkilife.ru/38278157888yxo2j.pdfIn PDF document text
    • http://gogemupiru.22web.org/49390591481.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404313/normal_5fcf750cbcc10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394072/normal_5fe000fdd2c2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471273/normal_601d6b278de32.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393639/normal_6008d3ac03a65.pdfIn PDF document text
    • http://rigizaba.iblogger.org/jeep_cherokee_maintenance_schedule_canada.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480886/normal_602e1adb26efd.pdfIn PDF document text
    • http://pabixigenived.22web.org/fortnite_llama_sheet_cake.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379234/normal_5ffaa42954b80.pdfIn PDF document text
    • http://mainsale.pro/812450981781uklb.pdfIn PDF document text
    • http://sizegivip.22web.org/xevumuxu.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/zagubip/browser_for_chromebook.pdfIn PDF document text
    • http://masesererevitug.epizy.com/apkreal_spotify_offline_er.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/texolumebuw.pdfIn PDF document text
    • http://maligufaribez.epizy.com/borexubumeraxodagabufiko.pdfIn PDF document text
    • http://liwujurepawoweb.rf.gd/microscope_pre_lab_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/14885504199.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/lirivijekoruxenitoreferul.pdfIn PDF document text
    • http://sijeregezokim.rf.gd/79890151215.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_off0000cfd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD7 5236 bytes
SHA-256: df83787b9b247bf4ac4b0cf8645a526b45af588ebe91af97da5998bc717b7076
font_01_sfnt_off0000e1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A1 9980 bytes
SHA-256: f35e704144ac9bc30d78ceb34817f989c450f297d5727209b9c9f234838f32b8