PDF static analysis report

Static analysis result for SHA-256 4c11f91fd6f9d808…

SUSPICIOUS

PDF

34.3 KB Created: 2021-06-20 02:24:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6c6dbe0287494507cac8cd0a0e761c34 SHA-1: 033e625ca35635fb401a12c071699a4c3a7d9517 SHA-256: 4c11f91fd6f9d808c91a45bfbd5d4e6dd72bc0c94370f455c736503a12604e5b
42 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites that promise free in-game currency or hacks for popular games. The ML classifier strongly flagged this PDF as malicious, and the presence of a visual download button heuristic further supports a malicious intent to trick users into downloading unwanted or harmful files. The primary lure appears to be related to 'Roblox' and 'Coin Master' exploits.

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.co/app/431946152/roblox-how-to-get-free-robux-no-hacks-2021-game-hack PDF link annotation
    • https://www.tw-storage.com.tw/upload/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/pokemon-go-free-level-40-account_GM1094591345.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/hacked-roblox-client_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/roblox-hacking-page_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/game-toolbox_GM479516143.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/how-to-get-free-5-robux_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/roblox-free-robux-adder_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/coin-master-hack-root_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/roblox-parkour-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-roblox-animations_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://www.tw-storage.com.tw/upload/files/roblox-hack-menu-jailbreak-2021-mayo_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
font_00_sfnt_off00002e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5B 22128 bytes
SHA-256: 9113dac622e07b997c05006fd51fa82b9a3f705901b781644ed5c4e417e721fc
font_01_sfnt_off00005f45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F45 19628 bytes
SHA-256: ddc97e758b846ee25b28667bc1a8f1d66392e693fdd4eed83586462065a797c8