Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25adde48ffe63ad…

MALICIOUS

PDF

80.6 KB Created: 2021-02-19 01:40:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 205a672a85f784ef202d7fae2464d79f SHA-1: 739ba05fd960111b47177e531dc96def1e72e622 SHA-256: e25adde48ffe63ad31210d8a592f23cc88ef6ecbdd973c8e10a413dc85b9105c
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://bologen.ru/wb?keyword=cyberpunk%202077%20ps5%20release%20date%20uk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407576/normal_600fc71f4e0ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426087/normal_602ef87b6ff15.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/cjdbgfu/wuperawuziwiwawevaxex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447252/normal_602a9faccd328.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480595/normal_6001cd628d8c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470985/normal_5fca7aab9d51a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500679/normal_601fabbb182ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489255/normal_6003e0ad1696f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425235/normal_6025454b443e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460682/normal_5fdf929203390.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450635/normal_5fe5a7cc24f48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368952/normal_5fdfda4a957b2.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/donarepemi/bbmku_ac_admit_card.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/john_lewis_pet_insurance_claim_form_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/windows_7_answer_file_computer_name.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_off0000fdad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAD 5644 bytes
SHA-256: 4795f14d5d2dd1d0f0ec80836baa9a0380cca73a27cd14d89678a3456769c40a
font_01_sfnt_off000110fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110FE 10700 bytes
SHA-256: f025d75ed01f87ec57e2376728006d665979197e884dfb146e6ca07a057f2835