Malicious PDF — malware analysis report

Static analysis result for SHA-256 7846d0956c768602…

MALICIOUS

PDF

44.2 KB Created: 2021-05-16 17:26:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8ff66190b16ade9469bf5875cad7be7 SHA-1: 90fd59a94b6e0ac86a54dc78389d1986ab1c3e8e SHA-256: 7846d0956c768602133a8ee2ded94d7e33364ad6b4ee423978dbde95eeafc880
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links designed to lure users into believing they can obtain free in-game currency. These links redirect to malicious infrastructure, specifically identified as a redirector for 'free Robux' generators. The document body and heuristics confirm the malicious intent to redirect users to potentially harmful websites.

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 https://netcdn.xyz/app/431946152/free-robux-no-survey-or-human-verification-game-hack In PDF document text
    • https://itv-grabungen.de/images/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/get-robux-now_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/spin-coin_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/play-games-for-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-place_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/orewards-com-free-robux_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_off00004655.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4655 28560 bytes
SHA-256: 3d6b4a935fbba5bfcd493f139c3b4e283e2bc88b694e1105124fc639784cb296
font_01_sfnt_off000087ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87ED 19156 bytes
SHA-256: 740843b016d65d6d98e94234348adfc338e782053996300107113ffe61ddc4f5

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