Malicious PDF — malware analysis report

Static analysis result for SHA-256 612c27cb93a860c0…

MALICIOUS

PDF

39.4 KB Created: 2021-05-23 10:38:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c20ce06c660f6d86ca7cc80db003fdb1 SHA-1: 16bee4006868e14298cfe66481649ef5bdcae94a SHA-256: 612c27cb93a860c0a028285037f33776f1081c63fbf52ccf85733876e35e0f9b
82 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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.xyz/app/431946152/roblox36.com-free-robux-game-hack PDF link annotation
    • https://asiavisiontreks.com/userfiles/files/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3519 25084 bytes
SHA-256: 9b10b59c0ed8c8b436dd0fe1d4fe1562a7ec78444dc70eda0608ab9384315055
font_01_sfnt_off00006cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAD 3008 bytes
SHA-256: 4cc11e4a3a6ce8f3d349ad2951dea633d0f58e21db8420262cc852cc55f01d0a
font_02_sfnt_off00007722.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7722 18756 bytes
SHA-256: 75a7293df35b739ae2294dba45007dab7b7658b4df7c6a7e046c10781a1fd260

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