Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d6338bf43d00faf…

MALICIOUS

PDF

34.1 KB Created: 2021-06-22 18:38:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3eaad211e77a96ce8d759338710a1a35 SHA-1: a206499b26129c34d8854553e69e39e51e3dcda1 SHA-256: 7d6338bf43d00faf12f3a16efc0f2db705abcbf658c473bf3dfa6ec28bd2733d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and in-game currency, directing users to the URL http://netcdn.co/app/431946152/hack.com-for-roblox-game-hack. This URL is flagged as a malicious redirector, indicating it likely serves as a gateway to download further malicious content. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/hack.com-for-roblox-game-hack In PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/whats-robux_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-roblox-accounts-with-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/roblox-hack-age-checker-how-to-find-other-peoples-ages_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-tiktok-email-and-password_GM835599320.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/cheats-for-prison-life-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/how-to-hack-roblox-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/super-jump-cheat-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/youtube-free-robux-codes-urban420_GM431946152.pdfIn PDF document text
    • https://www.anders-sofa.com.tw/uploadpic/files/hack-coin-master-download_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_off00002dbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DBE 22564 bytes
SHA-256: f6821b709d4d68068a0714173827a14808c0a7acec6c2ef4c7411ebbb569ab3e
font_01_sfnt_off00006034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6034 19144 bytes
SHA-256: 89c6c125c7a3f96edd2e29f6ee8ed7bba8e8b761ef41db56e7ef8483bc6a4c14