Malicious PDF — malware analysis report

Static analysis result for SHA-256 0445414265259949…

MALICIOUS

PDF

35.4 KB Created: 2021-07-05 18:35:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1fd16e64954abd267491e29e3afe09a1 SHA-1: c0bc044ba43735ac596c085d66aa3027b6ec9b45 SHA-256: 04454142652599492f0519527b86e38ab2f5bb33fabba39425a6527b0aaf64b1
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/406889139/haktuts-coin-master-free-spin-link-game-hack PDF link annotation
    • https://ezgolfer.com.tw/image/data/files/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/roblox-best-anticheat_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/free-game-card-roblox-codes_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/robux-match_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/free-20210-robux-and-tix_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/cheap-roblox-super-power-training-simulator-hack_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/roblox-free-game-no-need-to-install_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/free-robux-no-password-or-survey_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/facebook-coin-master_GM406889139.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://ezgolfer.com.tw/image/data/files/roblox-troll-hacks_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000340b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x340B 22844 bytes
SHA-256: 4f2f09bc35c2130ecdc53d5abb3de1788ed6c9e57df1badd9e91ec834c2934c7
font_01_sfnt_off00006740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6740 18484 bytes
SHA-256: d9a037a653ed28116979e3af0bb76bb4d7eaba1060cd405c4d4ff8bdf95a3337

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