Malicious PDF — malware analysis report

Static analysis result for SHA-256 e32446b450642105…

MALICIOUS

PDF

33.8 KB Created: 2021-07-08 01:41:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a47ef223fbdd2559f28253349a86ff8d SHA-1: 945478804a7b2bb56db9da95a1a83a08ec65c2ea SHA-256: e32446b4506421053e359a227bc6ea1e6f48670cd3635b45afa058f0ed7eedc7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a prominent link to a website offering 'coin-master-level-3-game-hack'. This, combined with heuristics indicating a 'game hack redirector' and a 'download button lure', strongly suggests a social engineering attack. The ML classifier also flagged the PDF as malicious with high confidence. No scripts were extracted, but the primary IOC is the malicious URL.

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-level-3-game-hack PDF link annotation
    • https://www.ma-plast.hr/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-roblox-accounts-with-100-days_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-spins-links-2021_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/como-descarar-roblox-hack-para-pc_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-the-complete-handbook-collection_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/tiktok-free-book-hack_GM835599320.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-hack-2021-jailbreak_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/roblox-aimbot-hack-phantom-forces-2021_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-2021-robux_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_off00002e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E70 22788 bytes
SHA-256: 0bc1c9c73724136aec08bcc77d497f0cb5e7970feece7f28faee0f520c8f0685
font_01_sfnt_off0000618b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618B 18196 bytes
SHA-256: 04e08f75d0dcb1ff2d1bd5e888b21509a5ecc658ea7bbb2878025403cee5e5ad

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