Malicious PDF — malware analysis report

Static analysis result for SHA-256 b277527808771a34…

MALICIOUS

PDF

34.6 KB Created: 2021-07-06 00:11:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8e177d9b04080055827f3789166fb0a7 SHA-1: 22f28b79b7268b1195a20dfd24e17d159a1653da SHA-256: b277527808771a347f645e99de9b922d5937d0fe758d6a362b546437c24ff92b
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 0.9980

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 http://netcdn.tw/app/431946152/roblox-fun-robux-game-hack PDF link annotation
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/how-to-hack-roblox-in-three-simple-steps_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/free-exotic-hack-roblox-assanis_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id//repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id//repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id//repository/master-game_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/robux-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id//repository/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id//repository/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id//repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id//repository/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://muliadarmapratama.ac.id/perpus.muliadarmapratama.ac.id/repository/free-robux-2021-comxa-dot-com_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
font_00_sfnt_off000031e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E7 22064 bytes
SHA-256: 9a8d35d5dd8e68d717635eb36c2a2cc052603507f9a7cc1bafce99273262693f
font_01_sfnt_off000062e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2 18788 bytes
SHA-256: f1919753301feeb94df7bcfa1ebc3dde1c8d9f330466b096a785b9796ab921e4

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