Malicious PDF — malware analysis report

Static analysis result for SHA-256 7936b21078ee3f8e…

MALICIOUS

PDF

36.0 KB Created: 2021-06-29 23:08:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-15
MD5: b6b296eae1d41290ec7f0a53d4e7c064 SHA-1: 4fa22916a5d7d698c40f42cdd3dafa43f245af23 SHA-256: 7936b21078ee3f8e87e40d10ce31788d24b08b86ea8986d17868520d87795baf
160 Risk Score

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/free-robux-codes-2021-mai-game-hack In PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/c-face-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-hack-someone-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-robux-wahoo_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-robux-scam-site_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/como-agarrar-free-robux_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/hacks-para-robux_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-hack-admin-on-roblox-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/skywars-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-hack-the-roblox-buy-button-with-inspect_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/free-roblox-scrips_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-tickets-bee-swar-sim-roblox_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/phantom-forces-roblox-hack-money_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/cheat-roblox-battle-royal-simulator_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/guest-world-roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/royalty-free-roblox-music_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/how-to-use-cheat-engine-for-executing-scripts-roblox_GM431946152.pdfIn PDF document text
    • https://www.man2kotatangerang.sch.id/__statics/gudangsoal/files/a-free-game-of-roblox_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_off0000314f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314F 23256 bytes
SHA-256: fe4ead0de9d82991ae0d0b79baac6e61dc752f6f48011aeaa2ee7384c8bf75fe
font_01_sfnt_off000065d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D4 19608 bytes
SHA-256: 1095c14bf0cad627bb1b7d33b6fd7f198785704e6e99f4eef226f8dfe7c2df01

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