Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0bc0a3b737bb2f…

MALICIOUS

PDF

48.0 KB Created: 2021-06-07 13:37:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2a6e4d07149bb12d8b7c3358b85e3611 SHA-1: e03f823705ac524945278e8bf58da5426c775752 SHA-256: 2a0bc0a3b737bb2f62ae4774dadabe0719e9b6c6cee8873467792a21f592ae32
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, masquerading as game hacks and generators. The primary lure is a Roblox Bubblegum Simulator cheat, directing users to a URL associated with malicious redirectors. This indicates a phishing or scam attempt designed to lead users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/roblox-bubblegum-simulator-cheats-game-hack In PDF document text
    • http://immo360grad.com/images/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/tiktok-free-package-dialog_GM835599320.pdfIn PDF document text
    • http://immo360grad.com/images/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
    • http://immo360grad.com/images/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://immo360grad.com/images/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://immo360grad.com/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5136 24628 bytes
SHA-256: 862cf788df83013b05d38fb7ea3e36e70d67564e800a52d02abe490e4268d307
font_01_sfnt_off000089fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FE 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off000096a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96A5 19088 bytes
SHA-256: fd0408c12dfd336ebfb5bc59e3c096ffd3c832d561969993b8020fed5f02ac34

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