Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e84c99ae0fae3fd…

MALICIOUS

PDF

36.1 KB Created: 2021-06-26 21:04:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7c6a9d60821b03a23ecde301a4ccd707 SHA-1: f1bf460a95bbc08de3816407e75e5618960912cd SHA-256: 4e84c99ae0fae3fd555a554ab51890eade091e76a4935295c147f1603389f05d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with one prominently linked to a malicious redirector. The document body and heuristics indicate a lure for game-related cheats or items, designed to trick users into visiting the malicious link. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or scam attempt.

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-clothes-roblox-codes-game-hack In PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/how-to-get-free-clothes-on-roblox-without-bc_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-diamonds-roblox-royale-high_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-robux-promo-code-for-blox-land_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/how-to-use-cheat-engine-on-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/vechle-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/roblox-island-royale-aimbot-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games-with-no-downloads_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/roblox-commands-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/roblox-how-to-sign-up-on-cheat-buddys-website_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/roblox-games-with-free-items_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/hack-week-2021-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/free-followers-on-roblox-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1kotamagelang.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-clothes-2021-no-bc_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
stream_002_off000033d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33D6 23120 bytes
SHA-256: 50dbd2aaf92e43e55ae0b57e0fca409f15d48af45b5f4525abc440e2d36fe651
font_01_sfnt_off00006813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6813 19092 bytes
SHA-256: 391af1cdeede52ee40536162fbdd0a42084aff62596bd69d8c5acaad00ff1f97

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