Malicious PDF — malware analysis report

Static analysis result for SHA-256 784afb6c01320e1b…

MALICIOUS

PDF

52.3 KB Created: 2021-06-03 05:56:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 87ce82ff2977f2763d1ef95af4f22e11 SHA-1: 05e2c965f2e799c83b7a24bf0e38ed082a744e4d SHA-256: 784afb6c01320e1b4b6fc29b4720e7735d2328fc70f52e2d8d2b2a4cca570a7a
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 0.9441

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.online/app/431946152/rbx-free-robux-game-hack PDF link annotation
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/woman-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/robux-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/how-to-get-money-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/master-coin-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/tiktok-free-followers-and-likes-apk_GM835599320.pdfIn PDF document text
    • http://perpustakaan62.smkn62-jkt.sch.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005409.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5409 26632 bytes
SHA-256: 11b74271e8cf4b3037b8ffee6948bd5e3b436ee9d2e56013af078a5efae8a87f
font_01_sfnt_off0000927d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x927D 7420 bytes
SHA-256: fec45630155636527f0fb489e0967415db145d494034a881dd5c70f329062e9a
font_02_sfnt_off0000aaf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF1 18012 bytes
SHA-256: 03f7603bc8a5695bbd0c39958af3fcfd5a932cbc13eba7563a8e8ca8b5ca4208

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