Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7fc077adfa3dd09…

MALICIOUS

PDF

71.3 KB Created: 2021-03-01 01:05:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e988358b59f8019fc76deee3efb33531 SHA-1: c8d4e63acd1a2cbe56eeec3ef33e83f6f7dbe377 SHA-256: d7fc077adfa3dd098786eda65da0223230e8aed96ab69f276fa6bd892141b3bf
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/wix?keyword=grihshobha+magazine+pdf+download PDF link annotation
    • https://cdn.sqhk.co/vadezewe/Pjdqtjh/50917667181.pdfIn PDF document text
    • https://cdn.sqhk.co/xadakede/iejfibY/homelite_pressure_washer_pump_parts_diagram.pdfIn PDF document text
    • https://cdn.sqhk.co/zofagopipowi/hc6Pihd/gatujesezivezevafezorod.pdfIn PDF document text
    • https://cdn.sqhk.co/nobipajami/ihgggjd/light_up_deer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446776/normal_6032b3e4e3ce3.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/WhgoFl7/digestion_plus_arbonne_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/hrejegg/53544869923.pdfIn PDF document text
    • https://cdn.sqhk.co/retobumoki/jfTgdCX/deep_sea_story_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sixofiwezuxowa.epizy.com/rovena.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/multiplying_and_dividing_decimals_worksheets_grade_8.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/70999808404.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/administrative_coordinator_resume_template.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_off0000d8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F4 5768 bytes
SHA-256: 968072a63f0359b560c0a595d9eb586c31c9fd857af5bb7b8a50ceabca0e43dd
font_01_sfnt_off0000ec85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC85 10464 bytes
SHA-256: 1ed3b62bf28b8da190cef7dd70a04605f7bb1ce258b2bae35c54de474916ca1a