Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01c0d65835c740b…

MALICIOUS

PDF

73.9 KB Created: 2021-02-11 05:17:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 0fb8ab23e25b910276ce3c799b417968 SHA-1: 32e8cf96ada78667d9c21bf81560b0d3d7407f8d SHA-256: b01c0d65835c740b0fb22d60b9e663cc8363f64fb55e270db075fd5c7fa9376e
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious phishing content. It contains an external URI and a redirector link disguised as a download lure, pointing to 'https://seumenha.ru/123?utm_term=ramsey+county+warrants'. The document body, though heavily obfuscated, suggests a pretext related to 'Ramsey county warrants' to trick the user into clicking the malicious link.

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
  • 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://seumenha.ru/123?utm_term=ramsey+county+warrants PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373304/normal_5ff69ef3b64d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470521/normal_5fe8ea5a18fb5.pdfIn PDF document text
    • http://italysummer.fun/49225485126801xs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384144/normal_5ff30e0fbe24d.pdfIn PDF document text
    • http://wunowixumofe.22web.org/cartoon_avatar_movie_in_tamil.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480895/normal_5fcdfcb1bbbdc.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/gazitif/loraso.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/jfet_transistor_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/xinivatux.pdfIn PDF document text
    • http://wanabovemuzume.rf.gd/pineapple_pen_apk_hack.pdfIn PDF document text
    • http://bulagim.epizy.com/86301683014.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/21296187132.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/61412044475.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/45300656162.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/identifying_slope_of_a_line_worksheet.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_off0000e1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AC 5112 bytes
SHA-256: 684efe5dc6d827ad7bd45e85eb56f9a9ef2b43f2965a4275c49f1f2158d49584
font_01_sfnt_off0000f318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF318 11680 bytes
SHA-256: e2e96d8958981a484dde2c87c38a40a4c287f319d12ba974e39fba9a28aaa809

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