Malicious PDF — malware analysis report

Static analysis result for SHA-256 39c42ba07a29e365…

MALICIOUS

PDF

31.7 KB Created: 2021-07-03 13:44:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b21e36fd1c1001665c4135ba9d28cb64 SHA-1: fdab8699ec1b0eee90780039c940e36a8a0250a3 SHA-256: 39c42ba07a29e36579d7932b61eea33d3ac633cede9d57a13a8014ebb57481a1
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 0.9824

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/479516143/minecraft-net-download-free-game-hack PDF link annotation
    • http://perpus.masda.ac.id/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-walls_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/real-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-pet-simolator-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/hack-roblox-jailbreak-2021-speed_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/hack-roblox-for-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-hack-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-do-yuo-get-robux-umlimted-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/get-free-spins-on-coin-master-no-human-verification_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_off00002a60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A60 21308 bytes
SHA-256: e1ee0a0c39b9d895de2b7dcfb112834bbc0312b617f0c17deb13b6d1f879dbb3
font_01_sfnt_off000058a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A8 18576 bytes
SHA-256: 08aed254992f756bb4253ed6d1ced4f5fc057e628d202e4f570a02296df47b27

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