Malicious PDF — malware analysis report

Static analysis result for SHA-256 b99e7f42295040c0…

MALICIOUS

PDF

69.4 KB Created: 2020-11-24 08:55:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: d7a3342aa6a40b5917b4597fc6447c2b SHA-1: 3cd0aad2cac4a445827988c887fffc66c0b601dc SHA-256: b99e7f42295040c09d4db2192cbb0b6ecbf1c4d652a29580f34d3467edd5358d
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://trafftec.ru/aws?utm_term=chamma+chamma+new+video+song++mp4 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381318/normal_5f9b9e436053e.pdfIn PDF document text
    • https://felanixumuxovex.weebly.com/uploads/1/3/4/7/134705369/ziveruvodi-befugijumubonu-xafenijuvawuda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374853/normal_5f987e8aaa065.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_5fbafdeab5d94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386095/normal_5f8c750271145.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419441/normal_5fbc62f6678b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381291/normal_5f96c387a246c.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/wozoxub/agricultural_economics_and_agribusiness.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/calendario_judio_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/watoti/please_dont_touch_anything_xbox_one.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bffe263-bf40-443e-80b6-60f4ae0ccca1/ish_by_peter_reynolds.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/zonudomasoxara.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/38954044855.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e56dba02-6e20-4073-86dc-9a949f241403/wowisamotusak.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/92202979667.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_off0000d17e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD17E 5504 bytes
SHA-256: 5fbe35ba4218612d9aaf438eac601e06beb7e6439d0b77e567dc80e2c171fa3c
font_01_sfnt_off0000e430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE430 10764 bytes
SHA-256: eb8f2987cdc21a38d75e83745c9112febee323ef59279b5401b4af14518f7909