Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82e36827218fc8f…

MALICIOUS

PDF

40.3 KB Created: 2021-04-23 23:48:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f2f5b9c77ff52b8256ed5cf8c368ebc0 SHA-1: 527a2fd605e99fb1da8f22c13d1a962aac32f73d SHA-256: e82e36827218fc8f69565973fe01122cfe226c09407206ab7910bc30016daa29
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an urgency-based lure. 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 0.9941

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://netsecure.top/app/431946152/how-to-download-roblox-robux-hack-game-hack PDF link annotation
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/free-roblox-cad-code.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/irobux-fun-roblox-hack.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/free-coins-on-assassin-roblox.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/como-hackear-cuentas-de-roblox.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/free-theme-song-for-roblox-boombox.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/roblox-creepy-april-fools-hack.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/free-tix-and-robux-website.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/free-roblox-followers-generator.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/guest-chat-cheat-engine-roblox.pdfIn PDF document text
    • https://redaksi9.com/new/public/ckfinder/userfiles/files/robux-free-xyz-works.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003fd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FD5 25456 bytes
SHA-256: 1e6e05d7430aa932f9134d993907bf50c66748aca21c51beca1fda700c77a89c
font_01_sfnt_off00007a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A02 18828 bytes
SHA-256: b619553bf1ed2825202760998159a3f81ccdc44640c90559e462caea52a2a641

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