Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c883d17fae6c40…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 08:46:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f8fd6c848ab4b3c188e09221c6292407 SHA-1: 7ff4d3761f41b0b29694669f90daf46e07a841c7 SHA-256: 07c883d17fae6c404a60f4bbcd84080576d98f35ce3282f73981db117c96da23
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, a common social engineering tactic to trick users into interacting with malicious content. It also embeds external URIs pointing to potentially malicious download sites. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.online/app/406889139/moonactive-coin-master-free-spins-link-game-hack
    • http://digilib.stimlog.ac.id/repository/coin-master-free-link-today_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/roblox-rules_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdf
    • http://digilib.stimlog.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-activegamer_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/rape-simulator_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/roblox-hack-me_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/free-robux-place_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/robux-offers_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-mobile_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/roblox-com-robux_GM431946152.pdf
    • http://digilib.stimlog.ac.id/repository/coin-coin-master-hack_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/coin-master-hack-tool-pc-download_GM406889139.pdf
    • http://digilib.stimlog.ac.id/repository/roblox-free-vip-server_GM431946152.pdf
    • https://digilib.stimlog.ac.id/repository/free-spins-coin-master-links-app_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/minecraft-svg-free_GM479516143.pdf
    • http://digilib.stimlog.ac.id/repository/minecraft-116-free-download_GM479516143.pdf
    • https://digilib.stimlog.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdf
    • https://digilib.stimlog.ac.id/repository/free-robux-codes-2021-without-human-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005023.bin
0f95a9a514a0ff635bed32a805d1a9f3d52cacbd51c690adb47f64fa4c08a2b0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5023 24652 bytes
font_01_sfnt_off000088c5.bin
5140a57a6990af64b86c6fc328de463115c3f290c56e1373822c3feaa5dc4a97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88C5 18168 bytes

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