PDF static analysis report

Static analysis result for SHA-256 b637f1a1f895daf1…

SUSPICIOUS

PDF

35.4 KB Created: 2021-05-23 22:43:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5ef00318aa1f10e0089c359b3d0ffcd8 SHA-1: 317e87f94a3889d0b20670989d103e318bb2c4b7 SHA-256: b637f1a1f895daf151607a314b5247d589eddb813b28a4a88d167ee80fe625aa
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a fake CAPTCHA heuristic, indicating a deceptive user interface designed to trick the user. It also includes an external URI pointing to a URL that appears to be related to hacking, further supporting the malicious intent. The document body explicitly mentions 'How To Hack Someones Roblox Account' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the lure. The presence of an embedded URL suggests the potential for downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

Heuristics 4

  • 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
  • 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-hack-someones-roblox-account-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002d28.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D28 25432 bytes
SHA-256: 7eec82b88cf0499f91bd5cd6b1cbe28e791759fbfe4ce1111729efdbbf1325d2
font_01_sfnt_off00006799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6799 18852 bytes
SHA-256: 030760a2b9f78489f4f2527f4aa1c5c01c299c9e8e159a1c649dae053cbb598d

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