Malicious PDF — malware analysis report

Static analysis result for SHA-256 36f3ba18b9a7a3fd…

MALICIOUS

PDF

38.3 KB Created: 2021-05-21 05:39:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 985a626171a6346d1df974c3c2d2ccc9 SHA-1: 2b2171bbd12d825eeb23ac55e771be1e9b7cc172 SHA-256: 36f3ba18b9a7a3fdd0e1013c0fd7b7716762ed527125cfcaa43986bc376f2f90
62 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs and a prominent call-to-action to download a file, disguised as 'Free Games Like Minecraft'. The presence of a callback lure suggests potential for further social engineering or scamming. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

Heuristics 4

  • 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/479516143/free-games-like-minecraft-game-hack
    • http://iglesiashispanas.org/images/coin-master-coins-free_GM406889139.pdf
    • http://iglesiashispanas.org/images/how-to-hack-a-roblox-account-easy_GM431946152.pdf
    • http://iglesiashispanas.org/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdf
    • http://iglesiashispanas.org/images/free-robux-generator-2021-no-human-verification_GM431946152.pdf
    • http://iglesiashispanas.org/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000371d.bin
06e89f64ec37e7e127895426684c8927765e33bab8b4f6918c6128a1fa10cfbb		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x371D 27552 bytes
font_01_sfnt_off000075b4.bin
6316af01e653c53aa8313e9ee065e63d320a9dd1c98e4ac08eccbec55cd1c79a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B4 17996 bytes

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