Malicious PDF — malware analysis report

Static analysis result for SHA-256 08787f7620c03816…

MALICIOUS

PDF

49.5 KB Created: 2021-06-09 15:08:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a67719c75ace0d2cbde4ed66ef1928bf SHA-1: e93bb4a9ef55b9f0da958560de54d51792e22d96 SHA-256: 08787f7620c03816b96d2228521e61b54d167634d735e0c82040100efbd39925
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as 'free generator / game hack' lures. These links ultimately point to infrastructure designed to trick users into further malicious actions. No scripts were extracted, but the presence of multiple redirector links and the ML classification strongly indicate a malicious intent to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/free-robux-games-that-actually-work-no-password-game-hack In PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/tiktok-free-followers-and-likes_GM835599320.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/como-consegir-robux-gratis-sin-hack-beyeg_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005612.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5612 25556 bytes
SHA-256: eacea4861ffec6788cbd6fec658f97d96c26d1acb0747647078c907e943d9aef
font_01_sfnt_off0000907c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x907C 2828 bytes
SHA-256: db1860fd79a3f2cbe32e2bada3ba4c68a2d581b7a24294387cd777233cc9cef6
font_02_sfnt_off00009a33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A33 19888 bytes
SHA-256: 0444ccfecf5458b7b0c94ba88f79baffc91d4506cd60904096b269b8f51d0ef8