Malicious PDF — malware analysis report

Static analysis result for SHA-256 68733ea00f808cb3…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 23:51:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fad5d0ebb199af6c41d398512de22d50 SHA-1: dedf589e76428e3203e301e9c7ddd7c92266741d SHA-256: 68733ea00f808cb3784b88423f9e1f98e80b26d6cd321adfa0fb8d47e4cd394b
160 Risk Score

Malware Insights

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

The PDF contains multiple links, including one pointing to known malicious redirector infrastructure at http://netcdn.tw/app/431946152/scary-larry-roblox-game-hack. The document body and embedded links suggest a lure for game-related cheats or currency, likely leading to further malware or phishing. The ML classifier also strongly indicated maliciousness.

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/431946152/scary-larry-roblox-game-hack In PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/pubg-uc-kodu-yazma_GM1330123889.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-on-a-comuter_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/free-roblox-shoulder-pets_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/roblox-launcher-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/odes-for-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/where-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-no-generator_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man2kojam.sch.id/__statics/gudangsoal/files/minecraft-build-hacks_GM479516143.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_off00003216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3216 22580 bytes
SHA-256: 3f129a8fe32406e0ff8369f48329e87f32c4bd475196c889ca03ffa7721a5ad1
font_01_sfnt_off00006466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6466 18668 bytes
SHA-256: b25a534296075f7bcdc7d208e3295736962a1ae35fe22db08908c3a21747a7bc

Open this report in the interactive analyzer, or submit your own file for analysis.