Malicious PDF — malware analysis report

Static analysis result for SHA-256 6644ee66e2eb8e10…

MALICIOUS

PDF

70.4 KB Created: 2021-02-17 16:48:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c800c044f486197a5fc986940c5fcbdd SHA-1: 5fac77bfcf156311868d988b5caa0ab91d5b1ae0 SHA-256: 6644ee66e2eb8e106b19daddeeb30edd5bda753efb87d34f74c31fec1959e7a7
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://seumenha.ru/wix?keyword=quartz+mining+subnautica PDF link annotation
    • http://natbeach.space/adb_drivers_for_android_phone4fs4h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487625/normal_5fe1aada62a64.pdfIn PDF document text
    • https://xowavexinoj.weebly.com/uploads/1/3/1/4/131408618/ragixogimufomebu.pdfIn PDF document text
    • http://topvideo.design/walmart_photo_promo_code_honeyzr1lq.pdfIn PDF document text
    • http://pafekusiwajida.66ghz.com/9577285119.pdfIn PDF document text
    • https://nilukosezaxed.weebly.com/uploads/1/3/0/8/130814529/xexodal_muxarobaba_vavupemusidepa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470689/normal_5fffa3056ba1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393754/normal_5fef8c95600e3.pdfIn PDF document text
    • http://beststudent.space/poxalifukibojofosid2icr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393632/normal_5ff9dc6871b7f.pdfIn PDF document text
    • http://microbestdigitalmeter.xyz/gulomesapedisagipegorazvcct.pdfIn PDF document text
    • https://xowogibudul.weebly.com/uploads/1/3/4/4/134446034/pajamete_busiferi.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/migivewuwe/woolworths_job_application.pdfIn PDF document text
    • http://zasegusof.epizy.com/gabunoruj.pdfIn PDF document text
    • http://tovajukoxeboder.epizy.com/number_0_worksheets_for_pre_k.pdfIn PDF document text
    • http://dafevuzadolax.epizy.com/dj_bass_english_songs_free.pdfIn PDF document text
    • http://limozonexokivof.rf.gd/roratepazanuvadefizap.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_off0000d847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD847 5340 bytes
SHA-256: b556f58aa79608b183151d101ed17782f8cff554b7a5469f173c0e9363455238
font_01_sfnt_off0000ea64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA64 9984 bytes
SHA-256: 23bc421d923f45aa767ce583e844c6d341bf389f943ec925b4b4bb32222a7922