Malicious PDF — malware analysis report

Static analysis result for SHA-256 e672dfeb5eba97ef…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 11:09:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: daa2aee1d4d4116e0559b9659f048a97 SHA-1: 01a87cbef7e1bcd00c6e0b349498d4d3442c56b6 SHA-256: e672dfeb5eba97ef1330da52aa5bc906f64520d1db6fda3ef4b469c5d675a942
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and 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 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/406889139/free-coin-master-hack-no-verification-game-hack PDF link annotation
    • http://www.donjastubica.hr/files/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://www.donjastubica.hr/files/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://www.donjastubica.hr/files/how-ro-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/roblox-robux-page_GM431946152.pdfIn PDF document text
    • https://www.donjastubica.hr/files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • https://www.donjastubica.hr/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://www.donjastubica.hr/files/can-you-really-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.donjastubica.hr/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://www.donjastubica.hr/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://www.donjastubica.hr/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://www.donjastubica.hr/files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://www.donjastubica.hr/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/how-to-hack-roblox-accounts-passwords-online_GM431946152.pdfIn PDF document text
    • http://www.donjastubica.hr/files/pokemon-go-free-pokemon_GM1094591345.pdfIn PDF document text
    • https://www.donjastubica.hr/files/how-to-get-free-robux-easy_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
font_00_sfnt_off0000334a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x334A 22640 bytes
SHA-256: 82fad8b2ad8f06b89b381f63d314a51ed7d84e513276a539c8561eab306d40ed
font_01_sfnt_off000065ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EE 18300 bytes
SHA-256: cb2b7cb0059af51db9ca07fd0e0130e31ebff2afe995e407a7cf27ef7bb28351

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