Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fdfcf6809bf5914…

MALICIOUS

PDF

32.5 KB Created: 2021-07-04 13:04:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f248291be4ac0dd87799515fb8a6b4e SHA-1: 6a46eecac97e0066bd42d84bf13c224061109ca0 SHA-256: 0fdfcf6809bf591415b96b21064d2b0f7fa8afbbfee07d9f8aad1e6a16bf3b14
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirectors and potentially malicious content, masquerading as game hacks and generators. The primary redirector URL is http://netcdn.tw/app/479516143/is-minecraft-dungeons-free-game-hack. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to drive users to malicious websites, likely for credential harvesting or further malware delivery.

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/is-minecraft-dungeons-free-game-hack In PDF document text
    • http://bw.ac.th/userfiles/files/free-robux-app-hack_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-hack-roblox-database_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-hack-roblox-for-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-roblox-faces-purple_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/add-robux_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-items-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/roblox-hack-free-robux-hack-2021-ios-android-pc_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/tix-factory-tycoon-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-hack-unblock-roblox-password-on-computer_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/roblox-murder-mystery-2-cheat_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/faztokens-hack-the-pizzaria-roleplay-remastered-roblox_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_off00002dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC1 21312 bytes
SHA-256: 3fe900adc21a2ec00fc0135cec7fcfb42e7c005e4f3a44b0681fcdb43545a96a
font_01_sfnt_off00005c1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1D 18304 bytes
SHA-256: ce690126d5ef6938f3c3401fec90eb29b657d34ca06495398573f2a883063706

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