Malicious PDF — malware analysis report

Static analysis result for SHA-256 96bcda80c91307d5…

MALICIOUS

PDF

36.4 KB Created: 2021-06-18 15:19:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bb676fee6f53417469890a06e1158439 SHA-1: d4f127a9b2dadb85312b184f486d010ac57cd3b8 SHA-256: 96bcda80c91307d52dac5ae524b0c495a0e5dc393bb4539ad82ec95967b1452c
160 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a visual download button lure, suggesting an attempt to trick the user into downloading a secondary payload. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. The document body references popular games like Roblox and Minecraft, likely to entice users with promises of free items or hacks.

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.co/app/431946152/when-does-roblox-heroes-online-go-free-release-game-hack In PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-robux-app-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-roblox-injector-for-cb_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/hacks-para-jailbreak-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-name-change-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/roblox-free-exploits-v3rmillion_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/rose-v1-download-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/free-robux-counter-for-roblox-apk_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/do-you-want-free-robux-get-unlimited_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/copy-and-paste-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/how-to-get-any-username-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkotajayapura.sch.id/__statics/gudangsoal/files/i-will-draw-your-roblox-character-for-free_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off0000361b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x361B 22664 bytes
SHA-256: d14df1e20a063418e112a906e4568b81750f5da81806a9883e5d00aa3310373e
font_01_sfnt_off000068d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68D0 19304 bytes
SHA-256: 28d25a604aefd5e5065f3067400597f71af62ea40854adadf038dd8f37ad8679

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