Malicious PDF — malware analysis report

Static analysis result for SHA-256 97e5c4366f752eba…

MALICIOUS

PDF

37.0 KB Created: 2021-05-24 07:19:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3d78ed1f529ad8d236dd69339e086c7d SHA-1: 7a555db1fe9e5435f77a8b4f15dde6cba00cdf02 SHA-256: 97e5c4366f752eba61304975f19332540e669957741f92a1a4c67818238e82ae
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, prompting the user to click a link for a "Robux Generator". The embedded URL and other extracted URLs point to potentially malicious content. The document's content and heuristics suggest an attempt to trick the user into executing further malicious actions, likely involving a download or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/free-robux-no-verify-2021-game-hack
    • http://drozle.lt/images/free-spin-codes-coin-master_GM406889139.pdf
    • http://drozle.lt/images/spins-for-coin-master_GM406889139.pdf
    • http://drozle.lt/images/coin-master-hack-with-lucky-patcher_GM406889139.pdf
    • http://drozle.lt/images/free-coins-coin-master_GM406889139.pdf
    • http://drozle.lt/images/free-robux-master_GM431946152.pdf
    • https://www.communes.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032b2.bin
c7f8310ea885f7f1c9c040e905004c949fc28a4fc043a613a746251ebfa33929		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B2 26232 bytes
font_01_sfnt_off00006d70.bin
9f147bd5bf62c652754f553854fad05fac0b8df637ce3021f80b740c61e7be7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D70 18848 bytes

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