Malicious PDF — malware analysis report

Static analysis result for SHA-256 015d3bfe1686748c…

MALICIOUS

PDF

71.7 KB Created: 2021-02-21 20:03:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 2b9cdc9ed49a692fd0d41e000101af37 SHA-1: 9cc0bbcb6309518e43513873c101fea7b6d39983 SHA-256: 015d3bfe1686748ca4a36815a940e132487b021cc58f3e43d1573358b6d9b4ab
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wix?keyword=algebra+2+chapter+7+cumulative+review+answers PDF link annotation
    • https://cdn.sqhk.co/zekuxemelop/ghZPpyp/bapovobepegubusit.pdfIn PDF document text
    • https://vaxevadokipab.weebly.com/uploads/1/3/4/6/134610393/3372951.pdfIn PDF document text
    • https://cdn.sqhk.co/mifimafonuku/iic1ghF/52216054893.pdfIn PDF document text
    • https://cdn.sqhk.co/gonibowijum/ggjbhcU/soliv.pdfIn PDF document text
    • https://cdn.sqhk.co/japokaxe/ggiha98/78243859861.pdfIn PDF document text
    • https://doxazefeseremef.weebly.com/uploads/1/3/4/7/134764644/ralevafozuw.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/TihFe5j/moner.pdfIn PDF document text
    • https://cdn.sqhk.co/mizogujuzo/Figtmhb/22183708249.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/Xpghdha/gubeforinesolefizigu.pdfIn PDF document text
    • https://cdn.sqhk.co/denepepunuja/egcOtih/33225062693.pdfIn PDF document text
    • https://zedabobosarafon.weebly.com/uploads/1/3/0/8/130813357/wawula-vubufekafexul.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/Ygciigi/kung_fu_karate_action_scene.pdfIn PDF document text
    • https://cdn.sqhk.co/fofotixoz/XBjffgc/top_gospel_songs_2020_list.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/gonima/77330745996.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/supercavitating_torpedo.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/35765834584.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/gibedadototevaz.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/casanova_scotia_font_free.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 8

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_off0000db67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB67 5840 bytes
SHA-256: 547a4ff722df806b27494030a0880b119b6a896287627352eb6428ac23a29418
font_01_sfnt_off0000ef3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3A 10044 bytes
SHA-256: cf47a8a86c87452e340e9b7888d4cc9d0f570fcafaf1eb5849ce7fa7a498adac

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