Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92d737507bba422…

MALICIOUS

PDF

46.7 KB Created: 2021-06-01 01:13:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f2d0e3f5570eb4b62404092ed89600b2 SHA-1: a260a4df6648ea780e1eb3fa529e556c74358564 SHA-256: e92d737507bba422f5ce3dff33ae5e3ae339526e2348ac081f86fd7d040239ee
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically advertising 'free generator / game hack' lures. The primary malicious URL identified is https://netcdn.xyz/app/431946152/how-do-you-earn-free-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to redirect users to potentially malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.xyz/app/431946152/how-do-you-earn-free-robux-game-hack In PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-how-to-get-free-gui_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/assassin-roblox-download-hack_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/what-to-do-when-you-are-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/do-you-get-free-robux-when-you-work-for-roblox_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-2021-cheat-engin_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-free-download-for-computer_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/roblox-hack_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://acasm.org.au/wp-content/uploads/fsqm-files/best-free-minecraft-server-hosting_GM479516143.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
stream_004_off00005305.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5305 28284 bytes
SHA-256: 38ed659734f15025d9a8ead2903c9e7ad571003aaf9d5b16619094502badcabb
font_01_sfnt_off000092a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92A4 18736 bytes
SHA-256: b3c121b3011c1ed83824b3a89ad424761859d4c44752b9f3ff2249ee3ad9a154

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