Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74fe8ec97bd8a1c…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 15:22:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 707b36f0eca63cb4615cf12a915b8b98 SHA-1: 788ad1129a665d7ca2c03fee384c5f59afae963e SHA-256: b74fe8ec97bd8a1c598c266756fca27ce9b96c03018ada111dbd3b72a2930e5e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for a game hack, directing users to a URL that likely hosts a malicious payload. The ML classifier strongly indicated maliciousness, and the presence of multiple game hack-related URLs reinforces this assessment. No scripts were extracted, but the document's primary function appears to be social engineering users into downloading potentially harmful software.

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-hack-apk-free-download-game-hack PDF link annotation
    • http://www.opac.stieimalang.ac.id/repository/robux-hack-proven_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-tradelands-hack_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/download-coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FFA 22476 bytes
SHA-256: 93dce0678565bbfef7f683b816088d1b45ef56624bc4733d7c05cbbf727c23dd
font_01_sfnt_off00006208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6208 18924 bytes
SHA-256: 38aff1f4ebc8d6a2cfc831d742e7ae34be9a6d1c0d894ae7a66b024f0bdab889

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