Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f50932208d8324…

MALICIOUS

PDF

42.9 KB Created: 2021-05-13 18:09:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e01b4aaa2faa219e71b260ff8beac1ca SHA-1: 45ee27fe065f2c9a00f9ceb1ec1188be65728459 SHA-256: a6f50932208d832496f05ee77fffaeab1769e34f7365313b1e426bdb5cb28063
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document contains a lure for free game items and includes a prominent link to a suspicious URL, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of MFA lure heuristics suggests credential harvesting. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/free-roblox-promo-codes-for-robux-game-hack
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-minecraft-server-maker_GM479516143.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-games-free_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-wurst-hacked-client_GM479516143.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-land-free-robux_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-coins-and-spins-in-coin-master_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-alt-accounts-free_GM479516143.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/robux-hack-no-verification_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-codes-not-used_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-iphone_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/block-best-robux_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-ids-for-free-spins_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-free-master_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-mobile_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-ios-hack-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a19.bin
4ecf6a02c6401527b8be260c8f8ae9ef9c47ae5d31b8c36322d885405a579013		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A19 25472 bytes
font_01_sfnt_off00008463.bin
dfd02273a8a318689417f97410c8e56666a417a259e3d1ed1911a13d5d5a3d3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8463 18676 bytes

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