Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa12b6d822c9369…

MALICIOUS

PDF

35.6 KB Created: 2021-06-28 08:32:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 2d85e1b68931fccc00d32c6354922430 SHA-1: fab7e348c0244531b5d1e64e6aaf0f66480e085f SHA-256: 0fa12b6d822c93696e209a802ae9c541e158657d0ac288ac9f84517cdba35623
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure, specifically mentioning 'roblox-robux-hack-without-verification-game-hack'. The document body reinforces this by displaying similar game hack-related URLs. This suggests the primary purpose is to trick users into visiting malicious websites, likely for credential harvesting or malware distribution.

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.co/app/431946152/roblox-robux-hack-without-verification-game-hack PDF link annotation
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/get-free-tiktok-followers-no-verification_GM835599320.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/robuxhub-net_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-imagine_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-apocalypse-rising-hack-2021_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-hack-without-survey_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_off000034b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B7 21928 bytes
SHA-256: f4e432d0892b6a47be4cc182bd8ce2a3527acb94489eeb5a4f4f864105bf3311
font_01_sfnt_off000064d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D7 19520 bytes
SHA-256: 21b42a90f1e1cece4459458a1542560145a2265294e9c286a970558a63a4a189

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