Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf626d968893b6fc…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 15:46:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 387229951846b380adf2d0ffe410d80f SHA-1: 3fc618e0dba0e4915178cf43e6bdb6b93f93ffe6 SHA-256: cf626d968893b6fc0e87aa7c8fd8058cfc4afc57e803b8ae1c94303f89b7cccc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a high-severity heuristic indicating it links to a game hack lure. The document body and embedded URLs reinforce this, pointing to a URL that promises a 'coin master hack'. This suggests a social engineering tactic to trick users into visiting a potentially malicious site, likely for phishing or malware distribution.

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-xyz-game-hack PDF link annotation
    • https://planetzoe.hr/files/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/free-robux-website-not-a-scam-or-fake_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-get-the-dominus-crown-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-gaming-roblox-recording_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/tokyo-ghoul-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/roblox-exploits-2021-free_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/roblox-cheat-enjen_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-attack-block-hack_GM406889139.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_off000031b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B2 22880 bytes
SHA-256: 9fd8d5e7dc277f0ed8b9c23cddb310d759e82746d9b4f0503277727d12f88d7a
font_01_sfnt_off000064d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D5 18496 bytes
SHA-256: bd2c90d618eff90014fde70917c30f451870fa3342cf3e365369efdfab30b31e

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