Malicious PDF — malware analysis report

Static analysis result for SHA-256 35377db6c9d452ed…

MALICIOUS

PDF

28.3 KB Created: 2021-05-10 19:40:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c39cb485ecb2375c0258690631a3a2fe SHA-1: 606b21dcb983cf2b5c9c699a70c32b4127d16ad0 SHA-256: 35377db6c9d452eda4a9e38dbc5f9f0fdadaa36e97441fe982a6cf7e0c77f3a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency, specifically mentioning Roblox and Coin Master, directing users to a known malicious redirector URL. This indicates a phishing or scam attempt designed to lead users to potentially harmful content or further malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

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 https://netcdn.xyz/app/431946152/how-to-get-roblox-credit-for-free-game-hack In PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/mcpe-client_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-link-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1tasikmalaya.sch.id/__statics/gudangsoal/files/give-me-robux_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_off00002390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2390 19028 bytes
SHA-256: 7bcbd0aec6093b02c6793eb3f603c3f5df70f267798c6c32643c1199c4617d5d
font_01_sfnt_off00004b26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B26 18508 bytes
SHA-256: aaee93be15afea3f34265028f72e14c8d8177a28a7e511fa9958eeec3e94f784

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