Malicious PDF — malware analysis report

Static analysis result for SHA-256 5992bae3e12e3222…

MALICIOUS

PDF

49.0 KB Created: 2021-05-14 19:07:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 76b362f31d62621ce1c9617c42f79152 SHA-1: 8d35c1b3e894ee885cf69d3029668a57f4ce2ac1 SHA-256: 5992bae3e12e3222b3dd4acc9081640218d3e06124c9f9e69586ad977ed59ae7
102 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs and a high-confidence ML classifier firing, indicating malicious intent. The document body and heuristics suggest a lure for downloading game cheats or hacks, which is a common social engineering tactic to trick users into executing malicious payloads. The presence of numerous URLs pointing to similar content reinforces this phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

Heuristics 5

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/431946152/jailbreak-roblox-hack-game-hack
    • http://jdleducation.com/images/coin-master-free-spins-hack-iphone_GM406889139.pdf
    • http://jdleducation.com/images/get-free-spins-coin-master-2021_GM406889139.pdf
    • http://jdleducation.com/images/free-coin-app_GM406889139.pdf
    • http://jdleducation.com/images/coin-master-app_GM406889139.pdf
    • http://jdleducation.com/images/martian-lettuce-coin-master-free_GM406889139.pdf
    • http://jdleducation.com/images/coin-master-key-free-spin_GM406889139.pdf
    • http://jdleducation.com/images/get-free-robux-gg_GM431946152.pdf
    • http://jdleducation.com/images/free-spins-and-coins-from-coin-master-game_GM406889139.pdf
    • http://jdleducation.com/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://jdleducation.com/images/coin-master-generator-free_GM406889139.pdf
    • http://jdleducation.com/images/give-me-robux_GM431946152.pdf
    • http://jdleducation.com/images/robux-cheat_GM431946152.pdf
    • http://jdleducation.com/images/free-robux-no-verification-no-download-2021_GM431946152.pdf
    • http://jdleducation.com/images/roblox-promo-code-to-get-free-robux_GM431946152.pdf
    • http://jdleducation.com/images/roblox-free-robux-generator_GM431946152.pdf
    • http://jdleducation.com/images/orewards-com-free-robux_GM431946152.pdf
    • http://jdleducation.com/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdf
    • http://jdleducation.com/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://jdleducation.com/images/free-roblox-items-codes_GM431946152.pdf
    • http://jdleducation.com/images/roblox-free-rubox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049fc.bin
e632ad8333f82335a61be3b4ceb017357f65867225609040879c947315b0fc36		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49FC 25652 bytes
font_01_sfnt_off00008593.bin
db1860fd79a3f2cbe32e2bada3ba4c68a2d581b7a24294387cd777233cc9cef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8593 2828 bytes
font_02_sfnt_off00008f45.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F45 5696 bytes
font_03_sfnt_off00009c57.bin
47180ef6fd58f08eabdcf8de8850cf434555edaa977bcc29afa6d0c928aef64e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C57 18468 bytes

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