Malicious PDF — malware analysis report

Static analysis result for SHA-256 f772a6114f7204f8…

MALICIOUS

PDF

35.6 KB Created: 2021-07-03 18:15:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d0ea3da58085136b6e07538bf7b7f92c SHA-1: 1d535f7037568cca9132700ca7d3baa8bf46ddfe SHA-256: f772a6114f7204f8c4b5799c857102d0c009af5b3cc7e0ddd670c0d1a85c2789
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at http://netcdn.tw/app/406889139/coin-master-hack-2021-game-hack. The document body and embedded links suggest a lure for game-related cheats or hacks, which is a common social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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/406889139/coin-master-hack-2021-game-hack In PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/strucid-aimbot_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/youtube-is-getting-a-roblox-account-hack_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/roblox-generator_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/hacks-para-cualquier-juego-de-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/atlantis-overlord-bubble-gum-simulator-cheat-code-roblox_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/impact-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/roblox-phantom-forces-cheat-1-milion-credit_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/free-roblox-accounts-november-2021_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/roblox-robux_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/robux-apk_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/doge-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning1.man1mempawah.sch.id/__statics/gudangsoal/files/minecraft-esp_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_off0000357f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x357F 22640 bytes
SHA-256: 548bd4498eaae7bab5a0d92f9fc3e4c138cd018722db889aae1dd1d458f175f6
font_01_sfnt_off00006816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6816 18408 bytes
SHA-256: 8438728008f6ab05b5c9a65d4eeb1f2e5c23a436eadc11c6e76328f72b7d7fb7

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