Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0d4917dabf9d9d…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 21:11:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: df9dbfbcced70e5f0f26824cb743f571 SHA-1: 51782f9aed22f25d36c8ce1c8de18e18daa30c89 SHA-256: 7a0d4917dabf9d9d6b805e256d6227d5f84177e3ae67e1e9b3fa2baafa786aa7
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/robux-win-game-hack PDF link annotation
    • http://perpustakaan.stietenggarong.ac.id/repository/t-shirt-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-help-to-remove-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-free-robuxs-on-computer_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-stuff-roblox-obby_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-ninja-legends-fan-groups-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/roblox-blood-moon-tycoon-auto-rebirth-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-legit-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/what-is-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/www-roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/como-hackear-cuentas-de-roblox-sin-programas_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-sif_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/roblox-btools-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-roblox-items-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-free-plus-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-codes-real-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/robux-hack-computer-no-app-download-computer-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-black-clover-roblox_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_off00003079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3079 22152 bytes
SHA-256: 7f22a5ae691fde2aec349b4664528cbea9806141a1598bcc9512a9060437458f
font_01_sfnt_off000061b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B7 18868 bytes
SHA-256: b7886f95459917ce9979ba5e88b3e17eca9525d8377d3e247e9b6fd470620a4b

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