PDF static analysis report

Static analysis result for SHA-256 f8887daf1b6861f8…

SUSPICIOUS

PDF

43.3 KB Created: 2021-06-08 13:39:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a15f3d93e13dc1f5a813f33840a2658b SHA-1: 1126d30c138ba57e54e9752803327152ab3323ce SHA-256: f8887daf1b6861f8a51c6490221e5316238d1107a424c463eb717bcc4409e6d2
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a prominent external URI pointing to what appears to be a download site for game cheats and hacks. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to game-related terms and the authoring application suggests it was generated programmatically, likely to host these lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/479516143/minecraft-classic-free-game-hack PDF link annotation
    • http://www.hlad.hr/files/robux-free-online_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/download-coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/woman-roblox_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://www.hlad.hr/files/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://www.hlad.hr/files/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.hlad.hr/files/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://www.hlad.hr/files/roblox-generator-no-human-verification_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
stream_004_off00004fa2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FA2 26204 bytes
SHA-256: 90057889f87e4073fdf0854366cd5ec6a8620e8bf66a84747fb00e93d44f9ac2
font_01_sfnt_off000088d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D4 17644 bytes
SHA-256: 1ee95ff2a7de50dda93d1224861f64f53bfa9b684d20bd49bdd14d4804095e27