Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a373c9979f6c92d…

MALICIOUS

PDF

45.7 KB Created: 2021-05-13 09:04:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: de41c3ae7463d09ac6093b555f39231f SHA-1: 8c9a459f568939fd1de607b654032b1ddb086bbe SHA-256: 5a373c9979f6c92d5c560d95e7e1c91b9d426d0e0ca28195a7819c12cf569b02
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and cheats, such as 'coin-master-hack-cheat-generator-d-game-hack'. This indicates a lure to trick users into visiting potentially malicious sites or downloading further malware. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/406889139/coin-master-hack-cheat-generator-d-game-hack PDF link annotation
    • https://hotelyetihome.com/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-roblox-svg_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-group-roblox_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/coin-master-fb-free-spins-link_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004898.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4898 27404 bytes
SHA-256: 834cf225788a59a499c534514979b0685f3125ebe6c4246abc9305579cb8cc19
font_01_sfnt_off00008734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8734 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000090e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E6 18052 bytes
SHA-256: 69e58de4fe57995ee3fde2136fe389d8145efd54ac3cf18bd53b540b229c712e

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