PDF static analysis report

Static analysis result for SHA-256 ce2916736359f7b9…

SUSPICIOUS

PDF

34.9 KB Created: 2021-07-09 18:28:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: aa8ec5f1db3751000e775bce8fcff1dd SHA-1: 20444d018176ed8a5e583845fd86cab4a480c599 SHA-256: ce2916736359f7b94995f8a8b3c805816a0069cef32ad52e85010d5d9a8087bb
42 Risk Score

Malware Insights

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

The PDF document contains a lure for a game hack application, indicated by the document body and embedded URLs. The primary URL, http://netcdn.tw/app/406889139/hack-coin-master-game-apk-game-hack, likely hosts a malicious payload. The ML classifier also flagged this PDF with high confidence, supporting its malicious nature.

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/406889139/hack-coin-master-game-apk-game-hack PDF link annotation
    • https://hotelyetihome.com/userfiles/files/roblox-shooting-range-free_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/roblox-robux-hack-download-ios_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/escape-school-obby-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/www-roblox-cheatus-limited-edition_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/roblox-girl_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/promo-code-roblox-free-robux-2021_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_off00003119.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3119 23168 bytes
SHA-256: a0a1a6d3858c7eb1d5dfad98190cdeaf8eee9629be408ebf59f9402fa2f0d57d
font_01_sfnt_off00006543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6543 18440 bytes
SHA-256: 463936874e39853abb7e98e6ded4f745103ffb6d0c99cb313be96a8fb665ddfc