Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bd2bd56c977fdc9…

MALICIOUS

PDF

48.5 KB Created: 2021-06-11 08:42:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 06be74d3ce6e1ea54f31779e6c27fde3 SHA-1: 9d8dc0df48c49213ee9d8a95a3e0e5bd226ff997 SHA-256: 4bd2bd56c977fdc9d7073587ebcecf24daf09061cba61838446a5534329bcd75
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is designed as a lure, presenting itself as a 'Roblox Jailbreak Hacks' generator to entice users. It contains an external URI pointing to a suspicious domain, likely serving as a redirector or download host for a second-stage payload. The ML classifier strongly flagged this PDF as malicious, and the presence of game hack lures and multiple embedded URLs indicates a clear intent to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/roblox-jailberak-hacks-game-hack PDF link annotation
    • http://digilib.pustaka.unand.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/hey-you-yes-you-do-you-want-free-unlimted-robux_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-get-cool-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/hack-roblox-counter-blox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/the-only-working-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-get-free-cute-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-cursed-islands-hack_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/dominus-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-without-human-verification-or-survey-or-offers-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/millitary-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-hack-a-rv-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-cheat-engine-speed-hack-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50F2 27960 bytes
SHA-256: ce43ea23213f54c34b20024946f624145607d1116725a7b3efc93c6fb519268b
font_01_sfnt_off00008fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDF 2984 bytes
SHA-256: 2df87bbe4e27b27e34c872c092d0522acd977d05f5cbde7ed5e1fdfeb59cb318
font_02_sfnt_off00009a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A2D 18468 bytes
SHA-256: f2c6e92da928d23df9a6a24d1f9af5c3528f3c7bffbe86cee930ab0a7232476c

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