Malicious PDF — malware analysis report

Static analysis result for SHA-256 002453e4be3314e4…

MALICIOUS

PDF

35.1 KB Created: 2021-07-03 20:11:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 265a352f36674111f9c6e001e2aba57e SHA-1: cb755dd664535b611ccdef7fa0970a429b6c131b SHA-256: 002453e4be3314e47d33c881da1ad740b2141c47a429e6d714516cd4b4d47275
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/free-coin-coin-master-game-hack PDF link annotation
    • http://cleansui.com.tw/image/data/files/roblox-account-hacken_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/how-get-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/roblox-f1-track-free_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/roblox-free-download-for-pc-windows-7_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/jake-paul-merch-roblox-free_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/roblox-jailbreak-hacks-april-2021-working_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/300m-free-robux_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/hwo-to-get-free-robux-with-out-hacks-or-illeagley_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-hack-version-ios_GM406889139.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
stream_002_off000031bb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31BB 23792 bytes
SHA-256: ac047cdeb11b21def72ea2c284192d1b51ac75a3833f073cdabd57883889cbc6
font_01_sfnt_off00006797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6797 17996 bytes
SHA-256: e3fb1ca426c01543f38f1d1129ae452bef28a40365fbe99abf1b239340e30419

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