Malicious PDF — malware analysis report

Static analysis result for SHA-256 bead4e65c482553e…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 16:27:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 37447f093f54d2389eee29ebc662cea0 SHA-1: 80ee65e3241304b52a50cf1fe7053720005b7c1a SHA-256: bead4e65c482553e8761f1b5a70149a81cb364b64adc049d468d2de4722ae882
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'game hack' lures for popular games like Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates that the document is designed to trick users into visiting malicious sites. While no scripts were explicitly extracted, the presence of numerous suspicious URLs suggests a phishing or malware distribution attempt.

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/com-roblox-game-hack PDF link annotation
    • http://ghi.dk/billeder/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://ghi.dk/billeder/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://ghi.dk/billeder/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://ghi.dk/billeder/coin-master-cheats-for-free-spins_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://ghi.dk/billeder/script-roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/easy-way-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/roblox-alt-delete-hack-2021_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://ghi.dk/billeder/tiktok-free-zong_GM835599320.pdfIn PDF document text
    • http://ghi.dk/billeder/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/download-roblox-free-on-mac_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/how-to-use-hacks-on-roblox-no-virus_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://ghi.dk/billeder/robloxgiveaway-xyz-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/how-to-hack-roblox-im-poison_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/free-accounts-roblox-download-for-chromebook_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://ghi.dk/billeder/how-to-get-free-spins-on-coin-master-android_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
stream_002_off00002f42.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F42 22516 bytes
SHA-256: 688302f21b933d7da3985b3cc239daffeb71a8ca23ee830afd8f33fe9573f7c7
font_01_sfnt_off0000615a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615A 18748 bytes
SHA-256: 5efbdd91acf04ee4189407ecfbc860d70cb86f9bc4f939de663b44da789917cd

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