Malicious PDF — malware analysis report

Static analysis result for SHA-256 10c264f59b09addd…

MALICIOUS

PDF

65.8 KB Created: 2021-02-17 16:19:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e2f074a482e0e60109027771ba4b2aa9 SHA-1: 70ec7b8889185962541a8d8ae48c34b8120bc229 SHA-256: 10c264f59b09addde3d8de4a4b872bc2b6f1757a3297b3fb7d8af36e95c43f07
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://bologen.ru/wb?keyword=mediterranean%20diet%20weight%20loss%20cookbook PDF link annotation
    • https://cdn.sqhk.co/tikatonasa/CfyohfV/buranunu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458625/normal_6011b74deb90d.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/LDxH4hg/slice_the_pie_review_generator.pdfIn PDF document text
    • https://cdn.sqhk.co/zivupowixede/BDibgho/matapobre_in_english_word.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380379/normal_5fcb8db5c99a6.pdfIn PDF document text
    • http://natorg.fun/fezikumagixosevtrrvc.pdfIn PDF document text
    • https://cdn.sqhk.co/didozakir/idDljjj/33280935050.pdfIn PDF document text
    • https://cdn.sqhk.co/tumupowe/hiCnSha/bridge_hd_wallpapers_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/damapegapi/jahhjue/medewudozusegesam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417032/normal_600540143430c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381752/normal_601b22ec2389a.pdfIn PDF document text
    • https://cdn.sqhk.co/vopupevomate/Jibgdhi/togajexug.pdfIn PDF document text
    • https://cdn.sqhk.co/vakenuda/70hh9ok/idle_coffee_corp_mod_apk_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/zudatona/OsWhbqd/84512963303.pdfIn PDF document text
    • https://cdn.sqhk.co/ratevusur/jaUuGMN/short_square_acrylic_nails_fall.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410679/normal_60182fb37b64a.pdfIn PDF document text
    • http://robot3.site/pikabasolijewowiboguvid7lh1.pdfIn PDF document text
    • http://stavki.link/59754743817k0on.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_off0000c389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC389 5500 bytes
SHA-256: 088f58b2c0fdd85e8eb702d0e27898997c56ac4872bf7e8418448d41ce141bd1
font_01_sfnt_off0000d654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD654 10472 bytes
SHA-256: ae713245e28d5d5e5a908993239fc77459d58de2435d12a0b0612be3fed6ea42