Malicious PDF — malware analysis report

Static analysis result for SHA-256 23e5585a3a33da2f…

MALICIOUS

PDF

45.4 KB Created: 2021-06-10 17:33:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bf4b2d67d3e4dae4435a47bb31c1e51 SHA-1: d711c49214bdb8044e15a6e8714617a5958165ac SHA-256: 23e5585a3a33da2fd61916d1073eff54c197c28f76dad07fdcbd432fd72ca31a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to a known malicious redirector infrastructure, specifically promoting 'game hacks' and 'free generators'. The document body and heuristics indicate a lure for potentially unwanted or malicious content, likely designed to trick users into downloading further malware or visiting scam sites. No scripts were extracted, but the primary attack vector is the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • 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
  • 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://netcdn.tw/app/431946152/300-roblox-accounts-free-v34m-game-hack In PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/free-jurassic-world-headphones-roblox_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/black-jeans-roblox-free_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/escape-the-free-robux-scams-freecookie20214_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/free-safe-roblox-injector-for-hacks_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/how-to-get-free-stuff-in-roblox-2021-september_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/roblox-how-to-get-free-vip_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/howe-to-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-ipad-pro_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/free-robux-images_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/roblox-promos-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/roblox-parkour-points-hack_GM431946152.pdfIn PDF document text
    • https://zakatiq.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-out-of-the-consule_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51DF 25264 bytes
SHA-256: 8a192a464e1e531719f82855bf59a00bbb796080494d56a80c8088dbb8e83703
font_01_sfnt_off00008c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C93 18996 bytes
SHA-256: 1b0eda3a6dc7884033b03f1677ce16b5a944b7e073ac239878e231d756945c99

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