Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d576e135461516…

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 06:00:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f642d3f3d5769fa3bb590423c94a0db2 SHA-1: fd952c57a5c9dc3ee5f3db16d2c4feb30f62ef9d SHA-256: 06d576e135461516aa650d29d906973cf23972df87452ebc6c0705a017138370
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links, including one to 'netcdn.tw', which is flagged as a lure for game hacks. The ML classifier also identified this PDF as malicious. The embedded links likely redirect to sites designed to trick users into downloading further malicious content or visiting phishing pages.

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/406889139/coin-master-free-spins-deutsch-download-ios-link-game-hack PDF link annotation
    • http://kumotor.com.tw/upload/userfiles/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/cheats-on-roblox-game_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/get-anything-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/cheat-roblox-wallhack_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/robux-hack-no-game-download_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/free-bobux_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/robux-admin-hack_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://kumotor.com.tw/upload/userfiles/files/how-to-get-free-minecraft-windows-10_GM479516143.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
stream_002_off000031e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31E5 22788 bytes
SHA-256: f2409a0f56d57cffc287bdfeec86c427bd44804c60434bcb7d9dec824b27bd24
font_01_sfnt_off000064e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E8 19228 bytes
SHA-256: 634a6888a1904234b303079f3dc1bf5a4e5ffef1388b284b3e88d08e2c9e8665

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