Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe05548de92b003…

MALICIOUS

PDF

36.8 KB Created: 2021-05-22 16:41:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 020e35eb0b3048e58c89200c476d4aca SHA-1: 169fb2a5a63a80f2c1dd45bc93304b413895a315 SHA-256: ebe05548de92b003b86af4cdac351e480d3194925e06066a8396a4f51a9beba8
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 0.9447

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 https://netcdn.xyz/app/835599320/buy-tiktok-followers-free-game-hack PDF link annotation
    • http://maslabaou.com/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/tiktok-free-view-iphone-theme_GM835599320.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/hacks-for-roblox-prison-life_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
stream_002_off00003144.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3144 26584 bytes
SHA-256: 9d2b351c86312a52189772a4a2dd8161b848a60b51770dd628b91a98c1f33519
font_01_sfnt_off00006e9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9F 18232 bytes
SHA-256: 961899ff1eb424bdaf12ead7fcaccf2d09ae623c60a9c1ffe8485e19a18d4dd1

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