Malicious PDF — malware analysis report

Static analysis result for SHA-256 7046aa8a81c7f72e…

MALICIOUS

PDF

83.6 KB Created: 2021-02-14 11:48:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e3ec20cfae0dc8bc9ceb152e66872a8d SHA-1: 7d26162dd326aa60beb9b9195dc0b4b31fd410c9 SHA-256: 7046aa8a81c7f72e0bffc3e246fc14a9cbb950b59fa1b36a12a42565764d882f
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, suggesting an attempt to obscure the true malicious destination. The presence of external URIs and the overall structure strongly suggest a phishing or malware distribution attempt.

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/wix?keyword=physics+for+scientists+and+engineers+4th+edition+giancoli PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383147/normal_5fd8f69bc72bb.pdfIn PDF document text
    • https://tuxaxigete.weebly.com/uploads/1/3/5/3/135324810/b9c6afa.pdfIn PDF document text
    • http://voztrans.ru/tangerine_book_download4j4ae.pdfIn PDF document text
    • http://pomurofame.iblogger.org/zevabixifutuxadimenuvum.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418368/normal_5fe5147eeb807.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.website/155093600749ceyg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482631/normal_5ff7a925f3956.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380230/normal_5fea2b1208f7b.pdfIn PDF document text
    • http://fojudesekuxujef.22web.org/14535002731.pdfIn PDF document text
    • https://budawimimizav.weebly.com/uploads/1/3/0/8/130873912/5752315.pdfIn PDF document text
    • http://rubyshup.space/54682931717lyhnv.pdfIn PDF document text
    • http://yblda.fun/adobe_acrobat_pro_apk_for_androidku2rk.pdfIn PDF document text
    • https://xigobelez.weebly.com/uploads/1/3/1/6/131606473/ravenafidevif-sikuxogatoxulaz-fimoketur-wusalurizipo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sejonigimanam.epizy.com/jebonoraxifavufaruwo.pdfIn PDF document text
    • http://wosaxadef.rf.gd/87852980400.pdfIn PDF document text
    • http://vosimamasi.epizy.com/chrome_cast_extension_for_android.pdfIn PDF document text
    • http://gabamad.epizy.com/95315283555.pdfIn PDF document text
    • http://lejubegow.epizy.com/62268801070.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_off00010ab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB4 5472 bytes
SHA-256: 4b12a4900b122638fcf423e84c34885c8e045da4fc261deedcc3b0830640c9bd
font_01_sfnt_off00011d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D5D 10328 bytes
SHA-256: 5e1c788f8d4d863eec7feae73f60a03d50b6c959de7a1fe945dae43eff0b68cc

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