Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e61aa03b52ef355…

MALICIOUS

PDF

79.2 KB Created: 2021-03-04 16:36:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 443268d0e416da5981ea21bfffddc085 SHA-1: 2f1e4305354e2c75a106c515a1710ba6ff207a72 SHA-256: 1e61aa03b52ef35582af0bf5048b4376d334562ecf3fb07817cdde977d969c40
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://dugedepap.ru/wix?keyword=communication+miracles+for+couples+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4390680/normal_6002af06a88c0.pdfIn PDF document text
    • http://ninozefumuwu.iblogger.org/ms_access_programming.pdfIn PDF document text
    • https://cdn.sqhk.co/vateviti/LeggEig/off-_road_driving_desert_offroad_adventure_driving_school.pdfIn PDF document text
    • https://cdn.sqhk.co/pilozarager/wbichet/6821435750.pdfIn PDF document text
    • https://cdn.sqhk.co/xovepejegosi/P6rhdTm/pixel_art_online_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459318/normal_5fdc7ec09d328.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473047/normal_5ff46ec681788.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426270/normal_600c6ed3d8fd0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaeaa917-d02f-4a13-af2c-08eb261b6b58/how_to_change_wahl_clipper_attachments.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/zagagizekafawe.pdfIn PDF document text
    • http://dajovufozimok.epizy.com/nofulajusirutagot.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/company_of_heroes_1_trainer.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/manut.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/all_information_about_carnivores.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d7525db-6633-463c-b45d-7e4fc2870bd1/how_to_determine_chainsaw_chain_file_size.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_off0000f952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF952 5208 bytes
SHA-256: 6cce1b80c778aca55eb20153f9525dbeb033cab7e030c47b992cfa0f83bc08fe
font_01_sfnt_off00010aea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEA 10208 bytes
SHA-256: 7610fc83b73bc7ff3e41247037722450672b578c311b52a463cb63d9a2368d78