Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e0c319bb2a47a7…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 05:38:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bbfe3ee30b0f5c40ae3b3b4a73bee6f1 SHA-1: 895ebecc801eca5c96e1536498cfe12ac74053d6 SHA-256: 89e0c319bb2a47a71bfc8e23942f23665a23e96160c6fb7e2b6cc0d211b0acb9
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/lazyblocks-com-robux-game-hack PDF link annotation
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-studio-script-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-solo-hack-client_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-free-chothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-arc-of-the-elements-phoenix-hack-artmoney_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/funny-hack-scripts-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-usernames-and-passwords-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-roblox-group-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/a-hack-for-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-redeem-card-codes-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-roblox-stuff-2021-promocodes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/black-tshirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/synapse-x-free-download-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/how-do-you-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/speed-hacks-on-fangs-roblox-with-out-cheat-engins_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-pokemon-go-joystick-2021_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-hack-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-game-hunter_GM406889139.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_off000031e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E0 22200 bytes
SHA-256: 6a45e83bd4d770be80fcbf23e28990f3ffd958baf9e7718e9b21f387356df25e
font_01_sfnt_off00006331.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6331 19320 bytes
SHA-256: 52be431e2479892243aaa080475f5659373002af5ea9ad85b1a3eaa30be58de6

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