Malicious PDF — malware analysis report

Static analysis result for SHA-256 72acd1fd088acc48…

MALICIOUS

PDF

42.8 KB Created: 2021-05-16 09:17:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 70b145a985d589cca6eeb5b89997c8ac SHA-1: 5878cdfa07e44892669a9713ad362f6792af9100 SHA-256: 72acd1fd088acc48d4d6cbc2b77e45df1124db790c835ea14cdbd5634acd3c47
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 0.9971

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/roblox40.com-robux-game-hack PDF link annotation
    • http://mcdougalfamily.site/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/hack-client_GM479516143.pdfIn PDF document text
    • http://mcdougalfamily.site/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://mcdougalfamily.site/images/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://mcdougalfamily.site/images/how-do-u-get-free-robux-2021_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_003_off00004940.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4940 25596 bytes
SHA-256: 62f3db74aeed7bb614664d45f4bc553782911b69dfdc7c1a57b9de1186f21495
font_01_sfnt_off0000841b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x841B 18484 bytes
SHA-256: 9918e4e201cf4584f779f98ae8fff3df607e64c5e2e67c0d23409290931a1188

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