Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ce30ff43dc126f…

MALICIOUS

PDF

33.7 KB Created: 2021-07-08 21:25:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ef8d272dc93f4dfad0d1ad29c63daef2 SHA-1: 3eb36fbaacf9589f6f0cac093cbbd1027ed16077 SHA-256: 65ce30ff43dc126fe2fcce8b64d12a18c94063a6e0b1924e60529f9e89c559b6
160 Risk Score

Malware Insights

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

This PDF document contains links to a known malicious redirector infrastructure, specifically advertising 'game hacks' and 'free generators' for popular games. The primary link, http://netcdn.tw/app/479516143/minecraft-game-hack, is designed to lure users into downloading potentially malicious files. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interest in game cheats to deliver a payload, likely through a drive-by download or by tricking the user into executing a downloaded file.

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.tw/app/479516143/minecraft-game-hack In PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/roblox-mining-sim-hack-pastebni-december-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/who-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/skywars-hack-roblox-rubis-weaping_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/how-to-hack-into-your-old-roblox-account-youtube_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/free-roblox-alts-with-robux_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.samsoncc.com/uploaded_files/userfiles/files/earn-robux-today-earn-robux-today_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_off00003254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3254 21932 bytes
SHA-256: d95315f0803196c4f35d0b515937210861aa4c33e9df5fe700415834d27ed995
font_01_sfnt_off00006257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6257 17856 bytes
SHA-256: 18153eb78e52d10f573a403757bf08b8b042ff0dae7dd3b4cc440df27f37a65e

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