Malicious PDF — malware analysis report

Static analysis result for SHA-256 4789ca10dbcec52d…

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 10:29:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 669ad5a5b824eae7938b803af00040b7 SHA-1: 80f540e35883a6c387b061e3b8ea769f9abb6b65 SHA-256: 4789ca10dbcec52d40437c09e5252c944dbc93c3914ca6967ed8e21d177c64a1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacking, specifically for Coin Master, and directs users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest a phishing or scam attempt to trick users into visiting potentially harmful sites.

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/406889139/coin-master-rare-cards-hack-game-hack PDF link annotation
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-hack-anyones-account-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/tiktok-free-vs-premium_GM835599320.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/hacks-for-booga-booga-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-robux-for-free-xbox-one_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-hack-someones-roblox-account-with-inspect-element-android_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/how-to-get-free-robux-no-verification-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_002_off00002fef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FEF 23232 bytes
SHA-256: a06503730ec81153bfe6c9f296d477f8758d510fda8126c78db45ea6dae2813d
font_01_sfnt_off00006467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6467 18180 bytes
SHA-256: a1d2185dee36d53b147e12cd8be4f8bcbae1ec15da72c02b630d04b80fdb421f

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