Malicious PDF — malware analysis report

Static analysis result for SHA-256 f96b74492ebd83f3…

MALICIOUS

PDF

44.2 KB Created: 2021-05-19 10:06:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0e8371839d09cbfa4495b0a23c9327fc SHA-1: 6b9382d9edfe31272a77ded9453cb1518e9f7151 SHA-256: f96b74492ebd83f3917472945a55bbcfa54d4da79a6a7b23711a056276d4b48e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a heuristic firing for a payment redirection lure, suggesting a phishing or scam attempt. The document body and extracted URLs indicate a lure related to free game currency (Robux) and game hacks. The presence of external URIs and the ML classifier's high confidence score support a malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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/431946152/how-to-get-free-robux-codes-game-hack
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/microsoft-robux_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-rape-hack_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/minecraft-java-edition-free-download_GM479516143.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-win-free-robux_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-hack-coin-master-using-es-file_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-coin-master-spins_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-do-we-get-free-robux_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/archery-master-3d-unlimited-coins-hack_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-robux-no-anti-bot-verification_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/minecraft-apk-free-download-016-0_GM479516143.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/master-hack-coin_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-login-hack_GM431946152.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-spins-in-coin-master-2021_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/minecraft-pe-hack-client-ios_GM479516143.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-cards-and-spin-link_GM406889139.pdf
    • http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-spins-app-android_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cd3.bin
01c80d4cf4d8180b921561cb6c0a1bf973e02c4051df704ac78b02fbbb243c2c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD3 26144 bytes
font_01_sfnt_off00008a01.bin
647704a1f8ac96c456e26df3796ee2ada4959e42324ca69004a5f2968b1e2bf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A01 18456 bytes

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