Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8b3dd74695bf02…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 06:13:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2afbdde8d7e549114cc87cc51e675428 SHA-1: 2ab173a7b1de95a98bdb1308e7c0ad3badd93cf6 SHA-256: 0e8b3dd74695bf024bb68486f0b99b47a571d99d4eeba68e7f8155a7dc4a5937
162 Risk Score

Malware Insights

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

This PDF document employs a fake CAPTCHA and a secret recovery lure to deceive users into divulging sensitive information. The presence of multiple external URLs, including one pointing to a 'coin-master-hack' download, suggests a phishing or scamming attempt. The document's content and heuristics strongly indicate a malicious intent to exploit user trust for financial gain or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 6

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.online/app/406889139/coin-master-hack-version-apk-download-game-hack
    • http://katalog.gemalibrary.net/repository/free-robux-scam_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/how-to-hack-roblox-on-mobile_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/pubg-uc-avatar-hd_GM1330123889.pdf
    • http://katalog.gemalibrary.net/repository/easy-roblox-today_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/free-robux-legit_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/give-me-free-robux_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/how-do-u-hack-roblox_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdf
    • http://katalog.gemalibrary.net/repository/can-i-get-free-robux_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/free-roblox-characters_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/minecraft-client-download_GM479516143.pdf
    • http://katalog.gemalibrary.net/repository/hack-avatar_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/coin-master-online-free-spin_GM406889139.pdf
    • http://katalog.gemalibrary.net/repository/games-for-robux_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/how-do-you-get-minecraft-for-free_GM479516143.pdf
    • http://katalog.gemalibrary.net/repository/hack-coin-master-spin-apk_GM406889139.pdf
    • http://katalog.gemalibrary.net/repository/robux-hack-no-human-verification_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/how-to-get-unlimited-robux_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/get-robux-com_GM431946152.pdf
    • http://katalog.gemalibrary.net/repository/minecraft-pocket-edition-hack_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005372.bin
131c108d73aaea49533e84f70366aca159d641ea25dad0fd918c3c7bf646775d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5372 25536 bytes
font_01_sfnt_off00008d40.bin
1dc11e7f68bd978fc0a92f78b05146ad1c6754ecfa484bd6206fefa9f56aad89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D40 18608 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.