Malicious PDF — malware analysis report

Static analysis result for SHA-256 72d72cb74c051fcf…

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 05:01:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e3940b16b996f72cf64f62d9765c36b SHA-1: 8ed6ee91b0abfc6e0bccdbcc41121429ad3a18fa SHA-256: 72d72cb74c051fcfde00a636631c16978371d2d12f72f569582268edf6e8761b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as a "Free Roblox Account Giveaway" and "game hack". The document body and extracted URLs strongly suggest a lure for users interested in game-related exploits or free accounts, leading them to potentially malicious sites. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-roblox-account-giveaway-2021-game-hack In PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-codes-generator-2021-july_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/deadzone-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/robux-claimer_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_off00002fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCA 21664 bytes
SHA-256: f825dd81fd4bfb93fa974ace6df68cdcb843d96f6d37e135343069040689564d
font_01_sfnt_off00005f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4F 19872 bytes
SHA-256: 41d669e61b7cdab98037218431565aa7fc612c1888c6901ddd3e23b1e47a2a16

Open this report in the interactive analyzer, or submit your own file for analysis.