PDF static analysis report

Static analysis result for SHA-256 9e5605dcf446fc01…

SUSPICIOUS

PDF

35.2 KB Created: 2021-07-02 07:58:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 03b587e2d4edeba215d66f61e2e00c79 SHA-1: 9dcd6c42e90702cda7a10a9886584853a9f8b8dd SHA-256: 9e5605dcf446fc01306b328c32c12be56376f897665f84257d5d1bc515e92df7
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, including one that directly hosts a file named 'free-hiring-scripters-roblox-game-hack'. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple URLs related to game hacks and free currency suggests a phishing or malware distribution attempt. The document body, though partially corrupted, contains references to these lures and the wkhtmltopdf application, indicating it was likely generated to appear as a legitimate document but serves as a vehicle for malicious downloads.

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-hiring-scripters-roblox-game-hack PDF link annotation
    • https://nhaphangjapan.vn/public/upload/files/are-there-any-roblox-games-that-have-a-free-radio_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/bhop-roblox-hack_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-robux-and-tix-generator-online_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/static-moonactive-net_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/www-free-robux_GM431946152.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • https://nhaphangjapan.vn/public/upload/files/free-spins-on-coin-master-links-2021_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
stream_002_off00002f80.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F80 23836 bytes
SHA-256: de8c1653eff4ec6ded2fbee5b2ec9302c000960a05444f3a082aa583be9cf268
font_01_sfnt_off0000647c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647C 19048 bytes
SHA-256: 01596fbaf6e95bc97608a72ab14663207a37e95953045d3f673fe5c2ada6f028