Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc3bbb7b35bea607…

MALICIOUS

PDF

44.8 KB Created: 2021-06-11 06:24:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bce4da1a65c976c8a2bb5bf1a399a880 SHA-1: c9334511f0d377ea481159e91e0b0da9c600b381 SHA-256: cc3bbb7b35bea607d0021fc2ef551b370bffc3a698fdd129584e0f70fd953896
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors, including one that masquerades as a "game hack" lure. The document body and embedded URLs suggest a social engineering attempt to trick users into visiting potentially harmful websites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of redirector links and the lure theme points to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/how-hack-roblox-accounts-2021-game-hack In PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/real-robux_GM431946152.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/cheat-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-pe_GM479516143.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.alajwakh.com/uploaded_files/userfiles/files/hack-coin-master-free_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_004_off00005143.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5143 24732 bytes
SHA-256: 9b55600ac52f38f18236cfa6fd0aecf45334a8b263ced35c0120de26edd98e7b
font_01_sfnt_off00008a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0E 18992 bytes
SHA-256: b32232e20b60b961f4fd093566b07b2ddd7f552a07efff69bb1496655e120dba

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