Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a3ec36f2a9770d8…

MALICIOUS

PDF

68.4 KB Created: 2021-02-18 20:37:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 476e2a85aa5c34ebd8872b93e44cc2f8 SHA-1: 8fc09359f27759058c2d94ffea58160cf8602678 SHA-256: 1a3ec36f2a9770d8bd1c201c088590bbf65237cfa805cfe6c3667987e78c4dfd
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=doing+honest+work+in+college+pdf PDF link annotation
    • https://cdn.sqhk.co/zofizitene/haeihic/contact_lenses_online_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485695/normal_5ff4b99f65900.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481695/normal_5ff3bb263243f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413231/normal_600be556f1726.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/jeWSja1/torogefajunumuror.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454280/normal_6025a4510afab.pdfIn PDF document text
    • https://cdn.sqhk.co/joraxeneli/hhbOhcm/tie_dye_shirts_diy_easy.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/hdggejg/dip_master_apk_android_oyun_club.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwifudu/cgijdhj/wamojiwijipetibigi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498997/normal_600be47726cb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421627/normal_6016562fc97f0.pdfIn PDF document text
    • https://cdn.sqhk.co/joxopejufito/c7hf0hc/dovomevemawusazasoxegupaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490371/normal_5fedfce9c10ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404503/normal_600d61121ef87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452385/normal_6014e12bed6e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373248/normal_60283c0c80ffe.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/zukogi/92386551866.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/password_bangla_full_movie_2019.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE64 5360 bytes
SHA-256: 5d739ff766023c6939f5e8d4972de8af27cc1c9ab0e2dc31bd1ff28c267cbcc4
font_01_sfnt_off0000e0bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BB 10556 bytes
SHA-256: dc9a449e7777760566c5a47a4df51fe4df4481810966e466ee02ca3d4a516d20

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