PDF static analysis report

Static analysis result for SHA-256 bdc8d1557c99e841…

SUSPICIOUS

PDF

34.4 KB Created: 2021-06-25 21:22:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b23a7c0fdd32dc5178271e40d52f472a SHA-1: 6534fed7b1c90f200cbbab53d80c88171315d445 SHA-256: bdc8d1557c99e8411cd7f44ab80063fc19f62f32714b1850e7cf745e54ff61ab
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous URLs pointing to sites offering game hacks and cheats, including a direct link to an executable. The ML classifier strongly flagged this PDF as malicious, and the document body explicitly mentions downloading a 'free roblox andoid robux hac'. While no scripts were extracted, the presence of external URIs and the lure of free in-game items strongly 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.co/app/431946152/free-roblox-andoid-robux-hac-game-hack PDF link annotation
    • https://nhaphangjapan.vn/public/upload/files/get-more-robux_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-synapse-download-roblox_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/click-kill-hack-roblox_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/roblox-how-to-hack-phantom-forces-2021_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/roblox-free-items-inspect-element_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/how-to-get-free-robux-without-doing-anything-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
font_00_sfnt_off0000301e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x301E 22232 bytes
SHA-256: 3bedf7f819aa8d2306b29e54c8ec9d877a58aa50aaa3b790726b5948ada08a49
font_01_sfnt_off0000614c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614C 19084 bytes
SHA-256: 3ad0548db41b7d3ce3b35e4cbaeb09b5ad42e1af0120b839c23887193832abf3