Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ad3e0076dac7fe…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 23:46:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 02bdd5f5c114ebc0be08a33a8af5a996 SHA-1: 1f7edeae68085f1f625d63d45079d9c61082c0f3 SHA-256: 65ad3e0076dac7fe03aaddbf9e5761bc4deef362ec29cfbab483b82dcac5b9db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks, directing users to a known malicious redirector. The document body contains multiple URLs, including the primary malicious redirector http://netcdn.co/app/431946152/how-to-scam-for-free-robux-game-hack, which is indicative of a phishing or scam attempt. No scripts were extracted, but the presence of malicious links and the lure suggest a phishing or social engineering attack.

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/how-to-scam-for-free-robux-game-hack In PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-free-login_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-download-free-coins-apk_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/mc-update_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-free-download_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-giveaway-live_GM431946152.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_off000031e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E5 21396 bytes
SHA-256: c17c75ec6d3aec65abdd8c73a4c1d2043431869ad03f7c83400a26cc4a71789e
font_01_sfnt_off00006061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6061 19140 bytes
SHA-256: 240742790fa113262d5a362e1de0b73273edd7c12baa5eb7dc60c7151aa92c73

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