Malicious PDF — malware analysis report

Static analysis result for SHA-256 d24c075df6525dd8…

MALICIOUS

PDF

39.2 KB Created: 2021-05-24 05:38:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f31ef1166ff640edf353177dbee71286 SHA-1: cd187f222641ef3217fb941a95bde123eabfdf89 SHA-256: d24c075df6525dd8d86a255b492c8bca1ef35c6ca04d7ee475fa0eb6720889de
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains lures for free Robux and a prominent 'CLICK HERE TO ACCESS ROBLOX GENERATOR' button, indicating a phishing or scam attempt. It embeds multiple URLs, including one pointing to a potential malware download, and the ML classifier strongly flagged it as malicious. The document's content and embedded URLs suggest it is designed to trick users into clicking malicious links to download further malware or engage in fraudulent activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/free-robux-today-game-hack
    • http://bob-reid.co.uk/uploads/files/files/rape-simulator_GM431946152.pdf
    • http://bob-reid.co.uk/uploads/files/files/minecraft-hacked-client-bedrock_GM479516143.pdf
    • http://bob-reid.co.uk/uploads/files/files/minecraft-pocket-edition-free_GM479516143.pdf
    • http://bob-reid.co.uk/uploads/files/files/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdf
    • http://bob-reid.co.uk/uploads/files/files/hack-coin-master-apk-mod_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000345a.bin
66acbe813f8fb3ed9755dbdb506b9ac41d4a10dc89d827292ada467dc6578f5c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x345A 29140 bytes
font_01_sfnt_off00007741.bin
123b3c01001442c78a22a4b95c046930f1463c344676a890e106be4cc216f6f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7741 18596 bytes

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