Malicious PDF — malware analysis report

Static analysis result for SHA-256 eca9298d6a4bede3…

MALICIOUS

PDF

70.3 KB Created: 2021-02-21 14:46:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e09874864fe7c78bc48007f4fa3a7f88 SHA-1: 13faf980e76cb4c98467e35000f018acbfe95dc5 SHA-256: eca9298d6a4bede3c4eb537ce6bb56f0c9465391cf344f81b6329efe1c1e03f7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=alesis+dm7x+electronic+drum+set In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388405/normal_60236fee08e21.pdfIn PDF document text
    • http://evatopshop.xyz/121921600169d0yr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369909/normal_6010e192e9c97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471512/normal_601d6ad448fc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454306/normal_600fb67e4eba5.pdfIn PDF document text
    • http://mamontov-net.cc/saluvazodajajikaxozisetuc0vr7.pdfIn PDF document text
    • http://babbieshop.ru/wararotuzedifeetx37.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/ninasivol/guxamafifabi.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/midnight_in_the_garden_of_good_and_evil_movie_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/fedovofomema.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/13660830024.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/race_car_free_printable_coloring_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/wintv_v7_activation_code_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/35065102459.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/73063137991.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/kedimubugenegad.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_off0000d8b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B5 5012 bytes
SHA-256: 909975955c80e3842b36ac482a4602ef136b56cf4ed222853740a266be6d3bf1
font_01_sfnt_off0000e9b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B9 10312 bytes
SHA-256: 5220d25d8ab9fbf23ae6b0475b674d9613c3f3a84ef52670b3e7b5bd9bbb2bea