Malicious PDF — malware analysis report

Static analysis result for SHA-256 ece71ce2234c265f…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 21:54:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 40dd067f0b4b3981b227ee51059e448d SHA-1: 7cf5b0d374515822157db67f5dcf180361805135 SHA-256: ece71ce2234c265fa29fd927adaa576cb39c3f9559755d7e0592fb40d138d728
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a call-to-action phrase, directing users to websites that promise game hacks and unlimited in-game currency. These links are flagged as malicious redirectors, indicating a high likelihood of phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-to-get-unlimited-robux-game-hack In PDF document text
    • https://donrazvitie.ru/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/get-robux-com_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-script-hacks_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
stream_003_off00004911.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4911 25668 bytes
SHA-256: fc43fda3c28b1f566ed434858afa7c04acf022da6bb7e1cd078e31e8e7f098b7
font_01_sfnt_off0000830b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830B 18932 bytes
SHA-256: ace2ca1e28dcf07f10f5e78488076fd29e63d022ebadbc7c3b340b65ab1424e7

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