Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f5cd2d556a079a…

MALICIOUS

PDF

68.0 KB Created: 2021-03-02 20:43:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 252ed082d4c469e3b2e17b7bac22c035 SHA-1: 008bb0baea908df4c2d2830246396952564697ae SHA-256: 17f5cd2d556a079a17bf895a6d6a631179f42524c02f685ab3a2591d922c37b7
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://ponafet.ru/wix?keyword=capello+cd+clock+radio+manual PDF link annotation
    • https://cdn.sqhk.co/nitumatemi/chjf66o/torco_racing_gear_oil.pdfIn PDF document text
    • https://cdn.sqhk.co/neguvobipa/Ng0hahd/37435132583.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465924/normal_600f2c6ea4527.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388819/normal_6017db4384e8a.pdfIn PDF document text
    • https://cdn.sqhk.co/raninogozo/hgijgji/paludavekatev.pdfIn PDF document text
    • https://cdn.sqhk.co/sizozizaj/L3he8hr/arcade1up_nba_jam_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/qBhdjaR/hitman_goty_upgrade_not_available.pdfIn PDF document text
    • https://cdn.sqhk.co/koxajavu/hh1bFif/parkour_seeds_for_minecraft_pe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480889/normal_5fd11a25cfdcb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471234/normal_6017530f4da55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386084/normal_5fcc0eb076d01.pdfIn PDF document text
    • http://mebowakop.22web.org/diabetes_mellitus_treatment_guideline.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379046/normal_5fe349572311a.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/jihbSxG/wewowibevogejovodi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414695/normal_5fc911446f41d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jovebagubalolif.epizy.com/55519433499.pdfIn PDF document text
    • http://gagonunanu.epizy.com/bleacher_report_college_football_week_1_predictions.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_off0000cec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC0 5008 bytes
SHA-256: f48d2525369783a03428df9f4c807d3503378968b1dd5a55de26531b9fdb8cd2
font_01_sfnt_off0000dfb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB3 10220 bytes
SHA-256: 23284c0610c2bab2325f2a38303d1fc752422455a9203b6bd4e1cb20853c6030