Malicious PDF — malware analysis report

Static analysis result for SHA-256 952db8b59263bd78…

MALICIOUS

PDF

38.5 KB Created: 2021-05-25 11:00:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5abdc039f5ca853d04cc0dc7ecfef90c SHA-1: 702d8792d32777c468fd8a6f67725e531fe0a0a0 SHA-256: 952db8b59263bd78904fa1e9f4aae0a9d5c691e94341caa5bf0b3789eeb4a4d8
102 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt to trick the user into clicking a malicious link. The primary malicious URL, https://netcdn.xyz/app/835599320/free-tiktok-coins-game-hack, is embedded within the document, suggesting a phishing or scam attempt. The presence of multiple related URLs further supports this. No scripts were extracted, but the document's structure and embedded links indicate a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/835599320/free-tiktok-coins-game-hack
    • http://www.e-lysis.com/images/get-free-spins-coin-master-link_GM406889139.pdf
    • http://www.e-lysis.com/images/ways-to-get-free-robux-2021_GM431946152.pdf
    • http://www.e-lysis.com/images/free-robux-real_GM431946152.pdf
    • http://www.e-lysis.com/images/minecraft-pocket-edition-free-ios_GM479516143.pdf
    • http://www.e-lysis.com/images/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003150.bin
e1a6af02e83ecc6e701ec4b4e1506185fda0424e77cd4e1c5a4f6ac4401fc5dc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3150 24440 bytes
font_01_sfnt_off000069b3.bin
db7ec909c907b23088a98ecd4cd288b476f2f66785a6e3d81bc6469138abe306		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69B3 4148 bytes
font_02_sfnt_off00007788.bin
af63c3f67091ff5b4163c7a95634870b81efad78e40c2266e63b82bf422718e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7788 17456 bytes

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