Malicious PDF — malware analysis report

Static analysis result for SHA-256 df67c9edc69f105d…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 12:53:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2e848755ae100c95b2056ca4bf4599e9 SHA-1: a4f518e52fa23d813685191bc7da071b0afb170e SHA-256: df67c9edc69f105d3bc3c5cc286ff9f7164dc1a94088d1aba5dcf44ab4eb2c05
160 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one pointing to known malicious redirector infrastructure at http://netcdn.tw/app/479516143/how-to-make-your-own-minecraft-pe-server-for-free-game-hack. This lure, combined with the 'free generator / game hack' theme, suggests a phishing or scam attempt. The document's structure and embedded links indicate it's designed to trick users into visiting malicious sites, likely to download further malware or engage in credential harvesting.

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/how-to-make-your-own-minecraft-pe-server-for-free-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/yt-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/hack-stats-on-roblox-game_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-script_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/without-tiktok-free-fire_GM835599320.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-robux-from-a-white-hat_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/cheat-roblox-one-piece-millenium_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-join-anyone-on-roblox-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-roblox-accounts-with-robux-2021-july_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/minecraft-pocket-edition-hack_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_off00003087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3087 21952 bytes
SHA-256: 9326a67d5ede60597d1e6ad6cc6e104bd6fe63b0520c9fa494c3ebf005fc94ca
font_01_sfnt_off0000610c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610C 18900 bytes
SHA-256: b0df4deb82070028e0d22c60232b6b3179353926a3a5e8fc0d5a0185ddcbde20

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