Malicious PDF — malware analysis report

Static analysis result for SHA-256 29bc2154f2cd1fa9…

MALICIOUS

PDF

36.1 KB Created: 2021-06-18 07:47:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cbb4bf739b6c4604fb0d19751e4ba6b2 SHA-1: 78085adf3f74ce80017401487a9d0a82b278b7df SHA-256: 29bc2154f2cd1fa945d885edc00ba4a8d57e7b1fd03691b6be348aeac5d06258
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors, masquerading as generators for free in-game currency or hacks. The primary lure is for Roblox and Minecraft, aiming to trick users into visiting these malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to potentially harmful content or further malware downloads.

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/roblox-how-to-get-anything-off-the-catalog-for-free-game-hack In PDF document text
    • http://fccsms.com/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • http://fccsms.com/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/how-to-get-free-robux-without-downloading-app_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://fccsms.com/images/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://fccsms.com/images/roblox-free-items_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://fccsms.com/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://fccsms.com/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://fccsms.com/images/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fccsms.com/images/how-to-hack-a-minecraft-server_GM479516143.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_off000067d0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x67D0 19200 bytes
SHA-256: 122dee5efe2f5a1e34ab1b05bcebc129f2cc47715c44c4bb91e943c9bcc02872
font_00_sfnt_off000033c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C3 23172 bytes
SHA-256: aae9a599f112c3d5e283098d2927b24cefea8e2be0ed998c50c9b0c28f1f537b

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