Malicious PDF — malware analysis report

Static analysis result for SHA-256 73fec08e94910b95…

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 01:49:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d857486a2f41d23b34264085fc107828 SHA-1: 418127533c2764b2a99f3e1170f38f4a526f39ab SHA-256: 73fec08e94910b956f33efb37a2fcb0ef74d43f0f94015f451dacd736db5d2d4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, including one that masquerades as a 'game hack' or 'free generator'. The document body and embedded URLs suggest a lure for users seeking in-game currency or cheats for popular games like Minecraft and Roblox. The primary malicious link is http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-phone-game-hack, which likely leads to a second-stage payload download. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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-get-minecraft-for-free-on-phone-game-hack In PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/can-i-have-robux_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-simulater-kit-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/girl-roblox-avatar_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/corn-master_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/top-hacks-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/intentan-hackear-mi-cuenta-de-roblox-lyna_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-games-to-play-for-free_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_off00003244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3244 22476 bytes
SHA-256: 171d0ab46393c52bd1caf363d17a43a3893bfb55da8f54146ffe06fc09cd4c46
font_01_sfnt_off000063df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DF 18484 bytes
SHA-256: 487100d73f6d1c6bb9027b4b0f8fffe0540623d8809bb1f7b8366124ba2b3e2a

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