Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce92b8986fb9e048…

MALICIOUS

PDF

34.6 KB Created: 2021-07-20 15:24:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: e6f002121a449e86a42120b04a0285a4 SHA-1: f0b75b25cbd1dddb0dbcc7616ed6780888040be3 SHA-256: ce92b8986fb9e04801b609dd3358fccaddd4a82d2a686dc1113a9513a2678869
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 0.9955

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-free-spins-promo-code-game-hack PDF link annotation
    • https://www.ferraroni.net/public/risorse/ck/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • https://www.ferraroni.net/public/risorse/ck/files/minecraft-games-free-download_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
stream_002_off00002fa4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FA4 23536 bytes
SHA-256: fbbbcfc65cd675fb77bcaa0e4e6bf6811ecdaa84b111cddcecd975c99cd755fa
font_01_sfnt_off000064b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B7 18476 bytes
SHA-256: dc3ef91c42b56b19e880a129857b9cc4209ff723fc15082788877c1745c42c0a

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