PDF static analysis report

Static analysis result for SHA-256 7ed87a3ac6c87e24…

SUSPICIOUS

PDF

36.8 KB Created: 2021-07-04 03:02:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3ecb9ba0b0b152e9a65e658cd3461b6e SHA-1: 22fe19d8245fc4d847735ece6c16b5208d652d12 SHA-256: 7ed87a3ac6c87e24e7385ebc87c0df834a2b47cbe42f9b8029573dd49861d860
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains an embedded URL and text that strongly suggests a lure for downloading potentially malicious content, disguised as game-related cheats or freebies. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs and the document's content indicate an attempt to trick the user into visiting a site that likely hosts a secondary payload or performs further malicious actions.

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/coin-master-free-daily-spins-today-game-hack PDF link annotation
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/hacking-guide-roblox_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/roblox-assasin-hack-script-2021-unpacthed_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/free-online-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/roblox-bubble-gum-simulator-hack-script-pastebin-2021_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/free-admin-roblox-commands_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/get-free-robux-gamepasses-pastebin_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/how-to-get-free-dress-in-roblox_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/com-roblox_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/free-gift-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/roblox-cheat-tower-defense_GM431946152.pdfIn PDF document text
    • https://thoisuviet.vn/public/ckfinder/userfiles/files/farm-world-roblox-cheat-codes_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_off0000373a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x373A 23220 bytes
SHA-256: 37b3cab164a6ac7f5d03599eed76e674285295fbc3f2e1b4686d00ba91953f88
font_01_sfnt_off00006bb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB0 18772 bytes
SHA-256: f359ff9f6a9d1716da13bac1dc9a7b9971cbd47e1612a9a6c5c4b6bbdfa7d697