Malicious PDF — malware analysis report

Static analysis result for SHA-256 4728c67ed349889f…

MALICIOUS

PDF

34.1 KB Created: 2021-06-26 22:42:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3cdde4be358fc9acb64c9d9d92736acc SHA-1: dc93310448bddf1f494531188ff617e46211c0a2 SHA-256: 4728c67ed349889fda6d52f7fc9aade9e47574c710a09bf08762faf6835b113b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains embedded URLs and a document body that explicitly discusses hacking and obtaining free in-game items for games like Roblox and Coin Master. The presence of external URIs and the ML classifier's high confidence score indicate malicious intent, likely to direct users to phishing or malware download sites. No scripts were extracted, but the document's content and embedded URLs suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-hack-other-players-in-roblox-game-hack
    • https://www.wannon.tw/upload/files/moonactive-coin-master-free-spins-link_GM406889139.pdf
    • https://www.wannon.tw/upload/files/boku-no-roblox-remastered-cheat-chose-quirks_GM431946152.pdf
    • https://www.wannon.tw/upload/files/free-roblox-accounts-with-obc-2021-september_GM431946152.pdf
    • https://www.wannon.tw/upload/files/free-robux-no-human-verify_GM431946152.pdf
    • https://www.wannon.tw/upload/files/coin-master-free-spins-2021_GM406889139.pdf
    • https://www.wannon.tw/upload/files/robux-matchcomfree-robux_GM431946152.pdf
    • https://www.wannon.tw/upload/files/latest-coin-master-free-spins-link_GM406889139.pdf
    • https://www.wannon.tw/upload/files/coolest-outfits-in-roblox-for-free_GM431946152.pdf
    • https://www.wannon.tw/upload/files/minecraft-bedrock-client_GM479516143.pdf
    • https://www.wannon.tw/upload/files/free-robux-no-offers_GM431946152.pdf
    • https://www.wannon.tw/upload/files/kazok-roblox-account-hack_GM431946152.pdf
    • https://www.wannon.tw/upload/files/hack-coin-master-iphone_GM406889139.pdf
    • https://www.wannon.tw/upload/files/how-to-get-free-robux-inspect_GM431946152.pdf
    • https://www.wannon.tw/upload/files/hack-to-send-gold-cards-on-coin-master_GM406889139.pdf
    • https://www.wannon.tw/upload/files/noclip-roblox-hack-may-2021_GM431946152.pdf
    • https://www.wannon.tw/upload/files/coin-master-free-spin-link-daily_GM406889139.pdf
    • https://www.wannon.tw/upload/files/robux-hacks-no-verification-2021_GM431946152.pdf
    • https://www.wannon.tw/upload/files/free-tiktok-accounts_GM835599320.pdf
    • https://www.wannon.tw/upload/files/roblox-games-to-download-for-free_GM431946152.pdf
    • https://www.wannon.tw/upload/files/hack-jump-for-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002edf.bin
8d3ed0a518b96dfcb81b1a55a4b15ac5b57d02472cab3b02f7d087508b59a0a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDF 21872 bytes
font_01_sfnt_off00005ee3.bin
4c7cf2668e1c7622b39009c667dcca7dce4fcc0a96d7760ffdac5bcea5c12faf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE3 19424 bytes