Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6423e4725b44937…

MALICIOUS

PDF

34.4 KB Created: 2021-07-01 12:56:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 66cf60bf92b6d192790659d46e11a2e2 SHA-1: a45f9b81309845a801137092d14201306a562f3f SHA-256: e6423e4725b44937fc6e91bcbf89adb344da7004f2488a690df75d69d9d8a55f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure related to free Roblox items and includes a URL that likely leads to a malicious download. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates the presence of command-line execution indicators within the document text, suggesting an attempt to run a payload. The ML classifier strongly flagged this PDF as malicious, supporting the assessment that it is designed to trick users into downloading and executing malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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/cool-roblox-costumes-free-game-hack
    • http://pustaka.fhuk.unand.ac.id/repository/hack-pp-jailbreak-roblox_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-hack-script-give-weapons_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-bee-swarm-simulator-cheats-2021_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/test-drive-evolution-roblox-hack_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-free-robux-copypasta_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-not-a-scam-2021_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-make-a-robux-hack_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/hack-script-copy-and-paste-roblox_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/download-roblox-free-ps4_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-get-free-robux-quick-and-easy-2021_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/hacks-on-roblox-jailbreak_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/work-at-a-pizza-place-roblox-cheats-2021_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-no-hack-or-survey_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/free-promo-codes-in-roblox-2021_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-login-to-roblox-for-free_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/roblox-nation-com-hack_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/how-to-hack-roblox-accounts-with-cmd_GM431946152.pdf
    • http://pustaka.fhuk.unand.ac.id/repository/free-robux-generator-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003099.bin
60c837307b0113be0149ab5ef601d7fb3f74cdcb2aa0aeadc62a357e45e0d044		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3099 21964 bytes
font_01_sfnt_off00006147.bin
ca021c210bc0c129167fd30cb78bca1d5f19d9a5a68c9253c4e1f3549ff90c20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6147 19152 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.