PDF static analysis report

Static analysis result for SHA-256 8dde5d6658c08c8f…

SUSPICIOUS

PDF

34.6 KB Created: 2021-07-10 02:15:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 68607dedaba2dfdd00779f07b3a55818 SHA-1: ac229698a484da551ce7cf221fcb237cf05f0474 SHA-256: 8dde5d6658c08c8fae85cc06379e0499c610d4f3a08c494c75611e83310db5b2
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs and a prominent external URI pointing to a download site for game hacks and cheats. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of it being used for malicious distribution. The presence of multiple related URLs suggests a campaign focused on enticing users with game-related lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.tw/app/431946152/robuxhub-net-game-hack PDF link annotation
    • https://cursocejas.com.br/imagens/userfiles/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/cheat-roblox-jailbreak-speed-hack_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/how-to-get-free-robux-in-roblox-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/roblox-hack-2021-2387202142-robux-infinitos_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/real-roblox_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/roblox-free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/roblox-free-hats_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/pokemon-go-free-pokecoins-xyz_GM1094591345.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/pubg-uc-emoji_GM1330123889.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/free-noob-clothes-roblox_GM431946152.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://cursocejas.com.br/imagens/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003061.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3061 22568 bytes
SHA-256: a165df6500b96eac2a36253184194feb9900039487eac557a4a6739773222677
font_01_sfnt_off000062eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 18820 bytes
SHA-256: 860ef4e04bb021e889367d1312a2c3676c6cbfd42f2fc62678844572a4a7db9c