Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccffa84feca872e7…

MALICIOUS

PDF

77.1 KB Created: 2021-02-24 20:14:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 405d2f67817b799106b4f03779841077 SHA-1: a70de12cb21b6fa0b1c66d41dbe93bb8dd80c523 SHA-256: ccffa84feca872e74b7231969cbef876d8a109de9c1ddbb616328b0a5ce57bd4
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/award?keyword=1997+polaris+magnum+425+top+speed PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4384150/normal_5fc601d31eade.pdfIn PDF document text
    • http://odemebayisitrafik.com/treatment_for_stage_4_arthritisnxsi3.pdfIn PDF document text
    • https://cdn.sqhk.co/tesosunimew/3gehdge/zokuxoremopanagelonawajif.pdfIn PDF document text
    • http://sfhgfje5df.xyz/certificate_of_completion_word_document_templatemv35m.pdfIn PDF document text
    • http://0fruit.space/384767574092xt2t.pdfIn PDF document text
    • http://ig-mediateam.net/jabuzufapemo3zi.pdfIn PDF document text
    • http://igcopyrightclient.com/baby_yoda_costume9wn8s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383460/normal_6026a4f457ded.pdfIn PDF document text
    • http://saudiautoinsurance.com/praise_and_worship_sheet_music_for_piano4qb0x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417406/normal_60082808926e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502870/normal_603445cf42cfb.pdfIn PDF document text
    • http://copyrights-notices-helps.com/booting_software_freexsax1.pdfIn PDF document text
    • http://fsbsiod.com/the_wifes_lament_ann_stanford_analysisc0rqr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417141/normal_5fedf2d1eb4b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446633/normal_6005a61f750e0.pdfIn PDF document text
    • https://cdn.sqhk.co/bowevuva/Igdjbgi/reguduzedura.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/hhfjdqm/falilixizadaxosi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387814/normal_5fecc9a8d1f2d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000efd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD0 5816 bytes
SHA-256: 276e54b7adb6f4078df6d38db6087a7b537e35eecd13e7bba06af499271b0a01
font_01_sfnt_off0001039b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1039B 10492 bytes
SHA-256: 4a41509d603f8743a6890b3dd157a2b8c7c7c32fdf90d4932c895c7ba01aceb0