Malicious PDF — malware analysis report

Static analysis result for SHA-256 d518d20cc774af7e…

MALICIOUS

PDF

45.7 KB Created: 2021-06-09 07:12:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 77a18ade2e1b1436661babce067a9f7b SHA-1: 915351fd5ce712a804e95ae6f4a7bfce847b5b5e SHA-256: d518d20cc774af7ea5708f8533042d27249634ebf2a2879ab09bfa1881358022
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-roblox-exploits-like-synapse-game-hack PDF link annotation
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/hack-work-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-ez-ways_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-hack-roblox-yammy_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/photostar-hack-client-inject-error-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-jailbreak-money-hack-2021-download_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/roblox-hack-roblox-account_GM431946152.pdfIn PDF document text
    • http://elearning.mamduh.my.id/__statics/gudangsoal/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051aa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51AA 25780 bytes
SHA-256: eb6e6a7a1fd4ce9301a8aae9a6d54667001c59fee9fde14033bbae50df64a5cf
font_01_sfnt_off00008df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF5 18924 bytes
SHA-256: aeaae5d3411fe9d238d680208eb88e32b09a4c2cd830ce1a61795707f029ecc6

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