Malicious PDF — malware analysis report

Static analysis result for SHA-256 d06bbc87ce211909…

MALICIOUS

PDF

76.6 KB Created: 2021-02-11 15:54:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c1831362657e02ba2dfea86c92958494 SHA-1: e3ab359e90520ac18d86ef914980f4181256952b SHA-256: d06bbc87ce211909f446da8eaeb7e147abc6a36ea39819d486a86a14a2c83ea7
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://jottigo.ru/wb?keyword=purpose%20driven%20life%20day%2020%20pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449603/normal_5fe8f360620a7.pdfIn PDF document text
    • https://cdn.sqhk.co/janonaset/ch9haca/56511999982.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/9JXPji5/vedevetexudugokorofexuwa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391013/normal_5fdfc3bb21bdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366957/normal_601e94840e542.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425921/normal_600258fa9a61f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478655/normal_600281a7c42da.pdfIn PDF document text
    • https://cdn.sqhk.co/turaxulefa/2ibhQ2G/sapagutebek.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/palevijuj/fegudugufapobibijitorop.pdfIn PDF document text
    • http://luvufipujadazik.rf.gd/chammak_challo_song_video_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/capello_alarm_clock_manual_cr22.pdfIn PDF document text
    • http://zobawukesilebaf.epizy.com/52018918716.pdfIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/hacksaw_ridge_movie_720p.pdfIn PDF document text
    • http://pivasif.rf.gd/android_one_ui.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/jumaxejifitakog.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_off0000ef7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7A 5472 bytes
SHA-256: 4ebdaf7a25f99fe60681576e146109491e029fdbdbd7901612fadd92f7e096e3
font_01_sfnt_off00010233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10233 10408 bytes
SHA-256: c839f8b0719f88726c210f25cc0fc31173f25d16b1ceccc2e27842f898ea5ce6