Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e93bd091a95b702…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 23:43:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 977bed5c846c96adc28e1dca98cc1739 SHA-1: 525481603a39f2adbd9105e921cbe8b2407da013 SHA-256: 9e93bd091a95b702ce8ccdf3320cc9a32284297c89db2a578dd91e5700a7887c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack lure, specifically for Coin Master. The document body and extracted URLs reinforce this, pointing to sites offering free spins and hacks. While no scripts were directly extracted, the PDF structure and embedded URIs suggest it's designed to trick users into visiting malicious sites, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-spin-and-coin-game-hack PDF link annotation
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-download_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-free-raid-link_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
stream_003_off00004bc6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BC6 24788 bytes
SHA-256: f0ff3b2c237352c4c9116397b351f032fee1344c4fb6eb824008ceba41aab790
font_01_sfnt_off000084c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C8 18060 bytes
SHA-256: 7f8980b6f3213b204c7b050e62c653166806b65682437d624869b2fc7a4cb6a7