Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3b07925ce08b65…

MALICIOUS

PDF

34.9 KB Created: 2021-06-26 12:46:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 127f00c0ad1118fa1ae67cdbfa296205 SHA-1: d5162e92efbdcb3f0dedd5e083a4b6162a8f2076 SHA-256: 4e3b07925ce08b651f665b9972a2157e646c345ced27f8fc54305739a9c4c19b
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-adidas-jacket-roblox-game-hack In PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/roblox-install-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/coin-master-hack-generator_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn8kuningan.sch.id/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.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_off00002fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC2 22520 bytes
SHA-256: 8c74a9b3b22bc428e54e58baf052333518cdaa93bcf6dc5d77743cfdd5f045e7
font_01_sfnt_off00006258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6258 19384 bytes
SHA-256: 403430fc43e56806388be8e939abe271e581722f7e23fcc3d77c868d406f5b1f