Malicious PDF — malware analysis report

Static analysis result for SHA-256 5525abf53b4c27b9…

MALICIOUS

PDF

44.2 KB Created: 2021-05-19 14:04:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1cd4fbd92444b3ce46342091bf7423ab SHA-1: 568d6c47b9b9ff1db55d6f1c2cefae83deacaa40 SHA-256: 5525abf53b4c27b9290017ec461d82220e0df2aaa1d6382d8dfb1400f71f451c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links and a link farm heuristic, suggesting it's designed to redirect users to malicious content. The document body and extracted URLs indicate a lure related to 'Coin Master' game cheats, likely a scam or phishing attempt. While no scripts were explicitly extracted, the PDF structure and heuristics strongly suggest malicious intent through link manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/free-spins-and-coins-coin-master-2021-link-game-hack
    • http://panaceafamilymedicine.com/images/coin-master-hack-apk-ios-download_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/free-robux-websites-no-human-verification_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/does-roblox-premium-expire_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/coin-master-coins-free_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/spin-free-coin-master_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/coin-master-free-spins-and-coins_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/android-coin-master-hack_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/will-minecraft-dungeons-be-free_GM479516143.pdf
    • http://panaceafamilymedicine.com/images/bux-life-free-robux_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/coin-master-hack-version-download_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/free-spin-coin-master-hack-2021_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/coin-master-hack-tool-ios_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/roblox-c9m_GM431946152.pdf
    • http://panaceafamilymedicine.com/images/free-spins-for-coin-master-app_GM406889139.pdf
    • http://panaceafamilymedicine.com/images/how-can-i-get-minecraft-for-free_GM479516143.pdf
    • http://panaceafamilymedicine.com/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ac0.bin
3a600e5a0992c556afabf6c5aab18a705982a044bc5e94d038d5fe6242c977a9		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC0 27076 bytes
font_01_sfnt_off00008958.bin
e5cba94a653a55f068ca82f0c7712f51eecd5e3013a204785266329deafd7ed1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8958 18632 bytes

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