Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aed7d913c76a77b…

MALICIOUS

PDF

81.3 KB Created: 2021-02-27 01:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 8c5f7fd8ba703f740673c508b86ca7e7 SHA-1: 00b85cde4c1e0ac72f3d2ebaca70b056d06b17c3 SHA-256: 5aed7d913c76a77b289bf69c9c433751e7982f260e1a2ccf3de341bacc32f638
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a high-confidence heuristic indicating it's a phishing lure, specifically using an image to redirect users to a malicious URL. The embedded URL and the document body both point towards a scam related to a 'growtopia hack tool 2018', aiming to trick users into visiting a phishing site. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://zajinet.ru/wix?keyword=growtopia+hack+tool+2018 PDF link annotation
    • http://nasufulorejuwe.mywebcommunity.org/gapifufefebokemewitom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455660/normal_5fd63255cf977.pdfIn PDF document text
    • http://xorimomupajo.scienceontheweb.net/47473574968.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/misbehavior_of_markets.pdfIn PDF document text
    • http://lozejebivo.scienceontheweb.net/onyx_boox_max_review.pdfIn PDF document text
    • http://gukiduwonaxinef.getenjoyment.net/what_are_the_12_steps_for_alcoholics_anonymous.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497095/normal_5fdf812bd8fb3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489440/normal_5fddb886b02ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416653/normal_60387dcf99360.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445871/normal_5fdcee4db646f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479674/normal_5ffc2ace8a471.pdfIn PDF document text
    • http://golosa-spasibo.ru/thendral_vanthu_theendum_pothu_mp3_free_downloadjv95y.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zuputes.atwebpages.com/81724454326.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/5857831334.pdfIn PDF document text
    • http://diverozisutujew.epizy.com/project_plan_excel_template_gantt.pdfIn PDF document text
    • http://fojosotum.myartsonline.com/what_do_monat_reps_make.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB7 5116 bytes
SHA-256: 05e943fe945442503d4b3406e424aa54a040bf88d5eeacc06e12ca9027708858
font_01_sfnt_off0000ff35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF35 13648 bytes
SHA-256: 0d014851079b635a135e61cf308809e7c59cc16999627e62c4fbfe3676c9897e
font_02_sfnt_off000129d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129D1 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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