Malicious PDF — malware analysis report

Static analysis result for SHA-256 242697974826b9e3…

MALICIOUS

PDF

43.7 KB Created: 2021-05-15 07:49:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 958497977e06fe26dbc3d1b83ac6b3a2 SHA-1: a18782bf6176344ee5c5c6f612cc5664d74170f9 SHA-256: 242697974826b9e3c761fff08acf877c53e296d5a7ba987ca8acb8fbcb00f91c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that point to known malicious redirectors and potentially malicious content, such as 'robux hacks' and game cheats. The heuristic firings indicate that the document is designed to lure users into clicking these links, which is a common tactic for distributing malware or engaging in phishing scams. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/robux-hack-me-game-hack In PDF document text
    • http://halle-wasserball.de/images/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-link_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/how-to-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/coin-master-free-coins_GM406889139.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_off00004b46.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B46 26504 bytes
SHA-256: fb9adfb8a1992a6f879f08109dde00e26b7a5dd613c851a7cf2277ff27525984
font_01_sfnt_off00008847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8847 18444 bytes
SHA-256: 63c17dbc7d8c7d1de0ff2471750372836806f4a6a54ec4612fcacbe2caf81c31

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