Malicious PDF — malware analysis report

Static analysis result for SHA-256 402236b231b2fd3c…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 07:36:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3eb1c5cc72344802c4ad3c033d535664 SHA-1: 4c6ead48d2422d711fba47525f040ec016b2ae80 SHA-256: 402236b231b2fd3ce92ad8e375f2a75c61aa8b8569cadb23441e153bd41578ad
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/431946152/how-to-get-free-robux-without-paying-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/roblox-for-free-eee-pc_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/como-me-hago-hacker-en-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-generator-easy-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-hair-roblox-not-model_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-giant-hand_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/instantrobux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-com-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-roblox-studio-for-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hack-prison-miner-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/prison-royale-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-kill-hack-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-drama-class-cheat-sheet_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hack-para-roblox-facil_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off000030c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C7 22136 bytes
SHA-256: 06e8fbe62b93437b760529146f4ebadcc58f674ae4283614075291406cf5d9f4
font_01_sfnt_off00006193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6193 19800 bytes
SHA-256: 1d61554b41e4a561f8cce96d416cb414ffdc77e661a84b072bd4f12fb61e75a1

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