Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3bbd55ace50c1f8…

MALICIOUS

PDF

42.8 KB Created: 2021-05-13 14:08:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: eccf9e0615ac76e1eea24e5f3926c04d SHA-1: c8c0fc990593378131402e7274f68d27d5f04be2 SHA-256: c3bbd55ace50c1f8c82d2947d7a660914a01015af1069808845d1a0835880570
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, disguised as a "game hack" generator. The ML classifier strongly indicated maliciousness, and the document body reinforces the lure by mentioning "how to hack people in Roblox". The embedded links likely serve to download or redirect the user to a malicious payload.

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-hack-people-in-roblox-game-hack In PDF document text
    • https://javisintlmedia.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/abd-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-free-printables_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-real_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004671.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4671 26268 bytes
SHA-256: 31bd93b2400601d775e15011e129c201bfa2df503df2b3f972ba0824744020fd
font_01_sfnt_off000083cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83CD 18676 bytes
SHA-256: 10ff19610ec10ba06ce370fdc76468137d93ed174f58c2f80433e0d310d8c060

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