Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c76138a9b6d051f…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 10:50:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: eb429d8c0ecaa95c8e95dfb42b6ac897 SHA-1: a5e38034c79c229f3ed337de6c2df77e71be44d8 SHA-256: 4c76138a9b6d051f4df1513ccb0d16a3d9d0fde4137f38913c8c582775386ed9
82 Risk Score

Malware Insights

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

The PDF file contains a lure related to game hacks and free generators, directing users to a suspicious URL. This indicates an attempt to trick the user into visiting a potentially malicious site, likely to download further malware or engage in phishing. The ML classifier also strongly flagged this PDF as malicious.

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/479516143/can-you-get-minecraft-windows-10-for-free-game-hack PDF link annotation
    • http://www.perpus.stfm.ac.id/repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/roblox-ben-10-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/hack-5-2021-de-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/rbx-com_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/i-need-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-hack-apk-35-8_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/robux-link_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-hacks-on-minecraft_GM479516143.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_off00002ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF0 22348 bytes
SHA-256: ded5b93ea4a3229ca16f1867956f142f1345a02b0dab14dabbb85e80710af7a8
font_01_sfnt_off00005fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEA 19116 bytes
SHA-256: e8039433bf59574774ab6d1b3300433467f64885375fcf650bf661ef17b6bd80

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