Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccbde244ef92702a…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 22:01:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 859584b8ede19f70c801c2eadc8b3fa7 SHA-1: fadcd8a2144591483630f1d0924aff551ec19b1f SHA-256: ccbde244ef92702a12b58bae93baa71a9f7442e9b165f36d886d5db587a0d14e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-unlimited-spin-apk-free-download-game-hack PDF link annotation
    • https://www.vista-design.hr/files/how-to-know-if-your-being-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://www.vista-design.hr/files/how-to-hack-roblox-games-without-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-robux-hack-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/woman-roblox_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-robux-cia_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/roblox-health-cheat_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/coin-master-village-3_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/roblox-hack-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/roblox-robux_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/how-to-get-free-things-from-the-catalog-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/guuud-info-for-free-robux_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_off00002e26.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E26 22580 bytes
SHA-256: ddc7b9822a468ae3549e2849d203447bd2f0bcfc223a3190c51fcf6466e47800
font_01_sfnt_off000060c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C3 19368 bytes
SHA-256: 8b0685dcc048d8507013793e7e40f4e8e130d168f30120dc551c0829f220b5a1

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