Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7a42e06889f9e49…

MALICIOUS

PDF

44.5 KB Created: 2021-05-19 14:31:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 50dee2e38f0776f9fbaf9e1668b1501a SHA-1: 3e08b7aee5ee045ed4c113fa3af7e67b210a582b SHA-256: c7a42e06889f9e497906b36e9aaba2d1bb122dd2883c6ab51e8e8e78e694b68f
92 Risk Score

Malware Insights

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

The PDF document contains a lure for an advance-fee scam, presenting itself as a 'Roblox Hack' and a fake CAPTCHA to trick users. It includes an embedded URI pointing to a suspicious URL, likely intended to deliver a malicious payload or lead to further scam pages. The document's structure and content strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0115

Heuristics 5

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/roblox-hack-me-robux-game-hack
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000032c4.bin
cb407edb79f7ba092bd4f3e229ceb4e533316103f5dcc48a79a437b5211a8dfd		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32C4 26660 bytes
font_01_sfnt_off0000710c.bin
771e3303b93b239bba7d1961dd0ede530e546568b0d1886cdf6948e6a5671e65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x710C 4092 bytes
font_02_sfnt_off00007e79.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E79 5696 bytes
font_03_sfnt_off00008b8b.bin
a375bd11c65aaa265b5abc99eda8135c05062389b04afd63241033984f92b3c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B8B 18520 bytes

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