Malicious PDF — malware analysis report

Static analysis result for SHA-256 9540aaef00808883…

MALICIOUS

PDF

41.6 KB Created: 2021-05-12 06:49:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0561dcce7821d5919fb96dddafc3d86b SHA-1: 28090cc74d3a1eebd1aa8ba4911bb762d6746bd8 SHA-256: 9540aaef00808883d9ef3fd791abd5fcb0c5d87133cdbff78c8e702d334f516d
62 Risk Score

Malware Insights

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

The PDF document contains an embedded URL and text that strongly suggests a lure for downloading software or accessing game-related cheats. The ML classifier also flagged this PDF as malicious with high confidence. The presence of multiple URLs related to game hacks and freebies indicates a phishing or potentially unwanted software distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-25-game-hack
    • https://www.zagi.hr/files/win-free-robux_GM431946152.pdf
    • http://zagi.hr/files/best-minecraft-hacked-client-2021_GM479516143.pdf
    • http://zagi.hr/files/coin-master-spin-link-2021_GM406889139.pdf
    • https://www.zagi.hr/files/minecraft-for-ipad-free_GM479516143.pdf
    • https://www.zagi.hr/files/minecraft-packs-free_GM479516143.pdf
    • https://www.zagi.hr/files/daily-free-spins-coin-master-2021_GM406889139.pdf
    • http://zagi.hr/files/roblox-hack-unlimited-robux_GM431946152.pdf
    • https://www.zagi.hr/files/free-robux-accounts-2021_GM431946152.pdf
    • https://www.zagi.hr/files/free-promo-codes-for-robux_GM431946152.pdf
    • http://zagi.hr/files/how-to-get-free-robux-on-iphone_GM431946152.pdf
    • http://zagi.hr/files/ww-robux_GM431946152.pdf
    • https://www.zagi.hr/files/freespincoin-masterlinkdownload_GM406889139.pdf
    • http://zagi.hr/files/op-rewards-free-robux_GM431946152.pdf
    • http://zagi.hr/files/free-girl-hair-roblox_GM431946152.pdf
    • http://zagi.hr/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdf
    • https://www.zagi.hr/files/roblox-rape-hack_GM431946152.pdf
    • https://www.zagi.hr/files/roblox-fun-com-robux_GM431946152.pdf
    • https://www.zagi.hr/files/daily-free-spin-link-in-coin-master_GM406889139.pdf
    • http://zagi.hr/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • https://www.zagi.hr/files/how-to-get-free-coins-on-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000485b.bin
7255b27dd79c6f023dbcbcfd019911a563c1e939b553392ef3869b7f6aa76545		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x485B 24084 bytes
font_01_sfnt_off00007f4d.bin
b4b281bb5b6dfe092bf3b90adf491610ab408f1d3fe0f6ae1605b441ac4007a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4D 18568 bytes

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