Malicious PDF — malware analysis report

Static analysis result for SHA-256 94db8919ded5887c…

MALICIOUS

PDF

36.0 KB Created: 2021-07-03 22:04:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 58144e29eceddfc39b24f5fa92de1271 SHA-1: 9ee26826b3423c13dda5b698cab5169365bd9799 SHA-256: 94db8919ded5887c05a8d23cae3583c02833a87fee298b59615fb1e1d26a548a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to known malicious infrastructure. The document body and embedded URLs reinforce this, attempting to trick users into visiting a URL that likely leads to malware or a scam. No scripts were extracted, but the PDF structure itself facilitates the malicious 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/406889139/how-to-get-free-coins-for-coin-master-game-hack In PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/idle-animation-roblox-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-game-download-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/mm2-hacking-vim-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-no-hack-robux-generators_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_off000036de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36DE 23024 bytes
SHA-256: a6f1edfb1050d4279308d1c4f94ab476ddf0b4bd2959368ee6827f158e7b7864
font_01_sfnt_off00006aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA9 18164 bytes
SHA-256: dbcb18f7bfdddec59cdd21c6f01db76fd89479467b7af7aa3f1646e0963d7b6f

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