Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8716893cdf8d0a…

MALICIOUS

PDF

45.5 KB Created: 2021-05-17 13:03:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8a337eac0026f65f03d48b5e345982aa SHA-1: 56802bd0768e9e386009a7532db3dd3a24d07690 SHA-256: fc8716893cdf8d0a564c3aef1d39369b93af5cc643087e70caa3b447bab5209a
82 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a heuristic firing for a payment redirection lure, suggesting it is designed to trick users into visiting malicious sites. The document body, though partially corrupted, contains text related to game hacks and includes a primary URL that likely leads to a malicious download or phishing page. The presence of multiple game-related URLs reinforces the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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/431946152/roblox-adopt-me-hacks-2021-game-hack
    • http://3dmedicus.ru/images/roblox-hack-site_GM431946152.pdf
    • http://3dmedicus.ru/images/roblox-robux-hack-generator_GM431946152.pdf
    • http://3dmedicus.ru/images/coin-master-free-coins-2021_GM406889139.pdf
    • http://3dmedicus.ru/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://3dmedicus.ru/images/robux-sign_GM431946152.pdf
    • http://3dmedicus.ru/images/free-roblox-account-generator_GM431946152.pdf
    • http://3dmedicus.ru/images/coinmasterhack-club_GM406889139.pdf
    • http://3dmedicus.ru/images/coin-master-free-spin-sites_GM406889139.pdf
    • http://3dmedicus.ru/images/how-to-get-free-robux-by-playing-games_GM431946152.pdf
    • http://3dmedicus.ru/images/free-robux-websites-that-actually-work_GM431946152.pdf
    • http://3dmedicus.ru/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdf
    • http://3dmedicus.ru/images/how-to-hack-coin-master-game-without-root_GM406889139.pdf
    • http://3dmedicus.ru/images/roblox-hacks-and-cheats_GM431946152.pdf
    • http://3dmedicus.ru/images/minecraft-hack-download_GM479516143.pdf
    • http://3dmedicus.ru/images/roblox-toy-codes-free_GM431946152.pdf
    • http://3dmedicus.ru/images/how-to-hack-roblox-games_GM431946152.pdf
    • http://3dmedicus.ru/images/roblox-girl_GM431946152.pdf
    • http://3dmedicus.ru/images/roblox-weird_GM431946152.pdf
    • http://3dmedicus.ru/images/coin-master-daily-spin-link-app_GM406889139.pdf
    • http://3dmedicus.ru/images/minecraft-free-download-iphone_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046b3.bin
a402bf050c9a2ffcc39dbfee0857978efd2c10583505865c2f55221c48df6ee5
pdf-font-stream PDF embedded font (sfnt) at offset 0x46B3 25428 bytes
font_01_sfnt_off00008212.bin
bab8933fc39dc331bc4c1c904a82b1432ab2e02478fa0a59453c98c5c231da8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8212 2956 bytes
font_02_sfnt_off00008c32.bin
0b867ffe8539eae71078bc89a561397ca2d87a89b617cad907cf467b0a006e5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C32 19232 bytes