Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc6139e4733e0efd…

MALICIOUS

PDF

71.5 KB Created: 2021-02-18 19:07:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d0c443ede6b60734754bc85a4541ab92 SHA-1: 3dabd5760351050524f7a2a8444ce41f28f820be SHA-256: bc6139e4733e0efdcffda48b300c4a352fce2975d691f336bff8d72293a416f9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=yamaha+dgx+650+manual PDF link annotation
    • https://nodazijokavi.weebly.com/uploads/1/3/4/3/134315007/vivosebotumuxux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391315/normal_601b3b6dc9949.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368245/normal_5fdd703c6c6eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422163/normal_60002645b0aa9.pdfIn PDF document text
    • http://you-bestshop.xyz/dell_latitude_e6410_laptop_reviewsdxpk9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457586/normal_5fdbbb0f1fb21.pdfIn PDF document text
    • https://guwepejesa.weebly.com/uploads/1/3/2/8/132814432/1580798.pdfIn PDF document text
    • http://sosyaltakipcipanelin.com/lord_krishna_story_in_englishoica8.pdfIn PDF document text
    • http://kijorifoweb.22web.org/camera_scanner_premium_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://noxikemudenuma.epizy.com/mxq-_4k_smart_android_tv_box_manual.pdfIn PDF document text
    • http://memavopunon.rf.gd/bio_rad_cfx96_touch_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/73571323437.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/19795591399.pdfIn PDF document text
    • http://xinudigiwuwa.epizy.com/dead_poets_society_full_movie_720p.pdfIn PDF document text
    • http://potopaf.epizy.com/15314172545.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/video_gallery_website_templates_free.pdfIn PDF document text
    • http://josuguremim.epizy.com/zigomokunola.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/tanatologia_libros_gratis.pdfIn PDF document text
    • http://pelotisevinok.rf.gd/62192189781.pdfIn PDF document text
    • http://wokikeka.epizy.com/nejanuj.pdfIn PDF document text
    • http://tiladolukix.rf.gd/napik.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA79 4576 bytes
SHA-256: 4832e324cd31fdb41ffde020f20bbd6dc4096b27002448e341d618a4e5a6967a
font_01_sfnt_off0000da5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5E 5416 bytes
SHA-256: d436e2033a4f7b343f906e67033aced99b1e48048dfb7021704badc670d38066
font_02_sfnt_off0000ecb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB2 10144 bytes
SHA-256: a73b1e286b3151b473d9e62b0bb8b3883bf3dc1d3ee563c4236e5e4eebebf425