PDF static analysis report

Static analysis result for SHA-256 5b84bca6a777d7fa…

SUSPICIOUS

PDF

34.8 KB Created: 2021-07-05 05:14:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3fa8f57509eb8873662a4f08dfcbee15 SHA-1: de1b87e2da452cfc1ad98a7e7565a1c96f2a44ca SHA-256: 5b84bca6a777d7fa5e9f36e0d2b68b2fe02207b88d447e49065060b91d6b8709
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for free in-game items and hacks, directing users to download a file from http://netcdn.tw/app/431946152/free-robux-no-verification-at-all-game-hack. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. The presence of embedded URLs and the document body content suggest a phishing or malware distribution attempt.

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/free-robux-no-verification-at-all-game-hack PDF link annotation
    • https://tpp.com.tw/image/data/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/how-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/how-to-get-free-robux-on-roblox-generator_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/roblox-scrip-super-poderes-no-hacks_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/powering-imagination-free-robux_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/what-to-do-if-your-account-gets-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/how-to-to-hack-joining-someones-server-roblox_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/link-coin-master_GM406889139.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/roblox-tower-battles-money-hack_GM431946152.pdfIn PDF document text
    • https://tpp.com.tw/image/data/files/coin-master-hack-pro-gamers-com_GM406889139.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_off00003138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3138 22208 bytes
SHA-256: 4ae050a7954e12ec1c509893d175f85dc5915bba7a3c829442fb1ca1e11b16ac
font_01_sfnt_off00006291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6291 19148 bytes
SHA-256: 5a0e9190e95b53368e7cb66d96866ddf92b1f6e1c3c90a967aca3b65a401f6e9