Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e25b0af3b311fb7…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 09:21:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 76bd972dc00e9d32dcc0106fcfe87096 SHA-1: abdfb35f2bc4f9793130fbcae3b0e509ff48b9bd SHA-256: 6e25b0af3b311fb757e3611bdec3b46c1f854b01769cac8e60f39996f19f82d8
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/431946152/collect-robux-game-hack PDF link annotation
    • http://educhina.mn/editor/files/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-spins_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/lion-studio-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/rbx-roblox_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-codes-august-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/roblox-jailbreak-hack-exploit-free-fly-hack-and-teleport_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-do-roblox-value-hacks_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/roblox-cheat-engine-infinite-health_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
font_00_sfnt_off00003052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3052 22324 bytes
SHA-256: 3f3b9d02e260ab6b88863f89b883a7cbd3b8490bb045d628f6151aecdfa8d690
font_01_sfnt_off0000620b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620B 18728 bytes
SHA-256: d66c08f78f239917c4ec7ae029ac685f0727a5c25a17f7bea25f393002770508

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