Malicious PDF — malware analysis report

Static analysis result for SHA-256 03e871237662fcd2…

MALICIOUS

PDF

79.8 KB Created: 2021-02-15 10:29:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: c0a592ff9e39d0fe73bfc6402324ec0e SHA-1: a42f3284089cb400f3ef27e2cfff7a5228b85117 SHA-256: 03e871237662fcd2e6777dc7410b4e2863f59c626184b2f874577e4008ab43a7
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=dietary%20guidelines%20for%20total%20fat%20intake In PDF document text
    • http://lofitner.buzz/track_caller_appnaejy.pdfIn PDF document text
    • https://wabuxopimigom.weebly.com/uploads/1/3/4/0/134042903/2bec94fbb5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5fe5ab11dff00.pdfIn PDF document text
    • https://neranutedaxujaw.weebly.com/uploads/1/3/1/4/131407849/5075553.pdfIn PDF document text
    • https://cdn.sqhk.co/matezafun/NnjiXXa/how_to_get_many_likes_on_tiktok_hack.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447434/normal_5ff8aa88f0a82.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476924/normal_5ff0c93123705.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452389/normal_5fc7fd10c0a07.pdfIn PDF document text
    • https://dezijetide.weebly.com/uploads/1/3/4/8/134864221/zuwiluxuxe.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/uihjejj/siberian_husky_mixed_with_australian_shepherd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378167/normal_601c861c54b1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495843/normal_60173786c6b15.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365635/normal_5fcf5ec7e1581.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426423/normal_6002fbff8883d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://debatebarumexa.epizy.com/duwutat.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_off0000fd47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD47 5240 bytes
SHA-256: 0e4a05b294a0c7e2c59457c623fcb4480d5a08512d569639fd83eb202fa203f0
font_01_sfnt_off00010f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F3F 10324 bytes
SHA-256: 2b7d6e4c4b01a6fb35096c27a761f4c4f33522427c44bd1f28af93d13d8a0784

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