PDF static analysis report

Static analysis result for SHA-256 b73127526a0852ad…

SUSPICIOUS

PDF

35.0 KB Created: 2021-07-08 18:37:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2acdf77161f200030892b3968ab1af84 SHA-1: 1ea0ffc8a6e12e428937b8ab5752903b5fa330ae SHA-256: b73127526a0852ad47493d239fe4cc356a636b7bee06b075ce74e8d64dfa7a02
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a prominent external URI pointing to sites offering 'free Robux' or game hacks, indicating a lure for potentially malicious downloads. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs suggests an attempt to redirect users to external resources. While no scripts were explicitly extracted, the nature of the lures and the high ML score suggest a downloader or phishing 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/how-do-you-get-free-robux-2021-game-hack PDF link annotation
    • https://7gking.tw/upload/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/hack-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/hacks-for-da-hood-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-roblox-shirt-templates-2021-christmas_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-roblox-account-dump-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/nexus-hacking-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/every-free-roblox-item_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-deals_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/wurst-112-2_GM479516143.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_off00002e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E83 22896 bytes
SHA-256: f31ddac840c930fad8f3f9cf3fe58a572cc7b356eccd989d32e6323b287da776
font_01_sfnt_off0000619f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619F 19716 bytes
SHA-256: 0d2f3942e55245e7a14fdb54ac7cb42d00cb555bb8e9738c839b3f9835dfd221