Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f0de203b905d6a7…

MALICIOUS

PDF

34.6 KB Created: 2021-07-07 18:08:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e876b2a692982257ac88c2e48a8bc51b SHA-1: ab0bc0a1cb56e53de191547b85f33f92491e3af5 SHA-256: 9f0de203b905d6a7030d77231ac634ce6010d9f37f2461b1f4d55a2638a1db10
160 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector lure, specifically targeting users interested in game hacks and free currency. The primary embedded URL, http://netcdn.tw/app/406889139/free-spin-link-coin-master-game-hack, is flagged as a known malicious redirector. The document body reinforces this by displaying similar lure text and URLs. The ML classifier also strongly flagged this PDF as malicious.

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/free-spin-link-coin-master-game-hack In PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/how-to-get-free-pant-and-free-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/how-to-have-no-pants-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/skin-for-roblox-boy-free_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/make-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/roblox-game-cheat-engine_GM431946152.pdfIn PDF document text
    • https://elearning.manesa.sch.id/__statics/gudangsoal/files/roblox-promo-codes-2021-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E2 22924 bytes
SHA-256: ea9906265e3799b0f2761317181eb6cccc9b404b11099d32080107e9c9ffb8ab
font_01_sfnt_off0000647c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647C 18344 bytes
SHA-256: 05274da8f0b2c24f990b03f912799dd404877cbb0fa71ac5363d7c288192e7fe

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