Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9814ceb106eefa8…

MALICIOUS

PDF

77.3 KB Created: 2021-02-18 15:35:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 89c7fa06a205231e8b2e4189ee8518bb SHA-1: a9a6590235a493111f95371101d249258a6b2d99 SHA-256: a9814ceb106eefa8992f74c6cf83ce178f76c23e961b70de168a3e8de17657da
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://maypoin.ru/123?utm_term=lan+cable+color+code+poe PDF link annotation
    • http://fejazeluxuz.22web.org/address_labels_online_template.pdfIn PDF document text
    • http://boost-store.net/kushi_movie_songs_ringtones_telugu5w7sv.pdfIn PDF document text
    • http://d2-club.ru/jukozovezusofumiwrp0j5.pdfIn PDF document text
    • https://cdn.sqhk.co/jinavefajevo/ZwjihfT/fuzevituki.pdfIn PDF document text
    • https://cdn.sqhk.co/kubibosujiko/jbAZibC/41115647567.pdfIn PDF document text
    • https://cdn.sqhk.co/bisidilit/g2hejiA/car_stunt_3d_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/ramidazumiko/ha76k4r/sazuvebedegulinivofux.pdfIn PDF document text
    • http://bossyonlinex.com/agneau_de_dieu_agneau_vainqueureh6hi.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/tosego/ca_125_endometriose.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/ibrance_dosing_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/uniforme_mais_bonito_copa_do_mundo_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/votevavilawogiwanowut.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/xisikigagijolepuwozoguja.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/adelantado_trilogy_book_two_free_full.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/gukitusaluxumesu.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_off0000e97f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97F 4968 bytes
SHA-256: 07541d178fc95d3e10b8eb6eb1cf97c7e488dee3304486b1e259412bf04d178a
font_01_sfnt_off0000fa6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6C 14716 bytes
SHA-256: 7315e63ea198ceeae4fb7a9fcd0b7ff70751f5f3e906b1872959de68153b0156