Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f049254b8cfaa1c…

MALICIOUS

PDF

78.1 KB Created: 2020-12-30 02:56:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b0a92dfcf581f0024ed2d8a926dc3576 SHA-1: 3bb150eb8be128f2f4ad1e83a5f6ac15faf9c518 SHA-256: 7f049254b8cfaa1cff12eda237b8e0bccd55e2ea0c0059133395a0b5036671c1
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains a high-severity heuristic indicating an image lure linking to an SEO redirector, which is a common phishing technique. The embedded URL, https://trafficel.ru/strik?utm_term=ludo+game+project+report+pdf, is the primary IOC and likely leads to a phishing page designed to trick users into downloading malicious content or revealing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://trafficel.ru/strik?utm_term=ludo+game+project+report+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373755/normal_5faed63dc63fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367950/normal_5f901c0f6c5b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450636/normal_5fadca2d38f60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391024/normal_5f9bd5a81904f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374843/normal_5f9e78cd2490d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405208/normal_5fa3623e6da61.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/kotodur/tutenosipaxizus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85840f7b-4181-4d6f-addd-132a48428b2c/pokikukebekepu.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/moxokapulaseketudazotex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1e35fe1-8d86-4280-8c26-bbc37d8770b9/65607678192.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/zivafinetimugojeranamuf.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/jio_4g_voice_apk_for_blackberry_q10.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/14184289741.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/41633684342.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_off0000f1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FF 5280 bytes
SHA-256: 43376921024079e84f83a60d35ea48a29ce731cbde389665b171dea1b9de333f
font_01_sfnt_off000103f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103F3 11756 bytes
SHA-256: bc0d7cfe988c8acfaef896eb58ab637b397fc8fb8a3d64d2f862c65587a9df1f

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