Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b82f779f2c2649c…

MALICIOUS

PDF

34.1 KB Created: 2021-07-21 14:22:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6d495b36327a80583d2a1f99bc95d38e SHA-1: 59a42e6c91478dc08995238fe3fadfd78409ac68 SHA-256: 9b82f779f2c2649c3c10b2c97f5d23373c8f0ff9b377c21b7e77b28cc0e9065b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to what appears to be a malicious redirector, disguised as a "Coin Master Hack" generator. The presence of a visual download button and the overall theme suggest a social engineering lure to trick users into visiting potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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.tw/app/406889139/coin-master-hack-without-verification-2021-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/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
font_00_sfnt_off00002da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA2 23180 bytes
SHA-256: 3565b3f57dece6a2bcbe1949f41c5aeeeae8fa188f84cc1b2db330fe7afd1c34
font_01_sfnt_off000061ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EC 18756 bytes
SHA-256: 1f8069b8e373c1677ee696ae61803aee5e0941708a1ef93a03d88c08535d6ef3

Open this report in the interactive analyzer, or submit your own file for analysis.