Malicious PDF — malware analysis report

Static analysis result for SHA-256 67c55c03c32bf250…

MALICIOUS

PDF

32.7 KB Created: 2021-07-20 11:54:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e3f0fa4d4072de87e1693bb12b25d9dc SHA-1: 8a7e37a689dba0ab52714c626bcaad55fdd0afbf SHA-256: 67c55c03c32bf2505bb72d9e903094753ca8f61ff9730db9c6efa2d1fe10bd16
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free Minecraft Bedrock Server Hosting' generator, directing users to a suspicious URL. This URL, along with several others found in the document body, likely leads to a malicious download or scam. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or scam-related attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/free-minecraft-bedrock-server-hosting-game-hack PDF link annotation
    • http://acp-institut.fr/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://acp-institut.fr/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://acp-institut.fr/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://acp-institut.fr/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://acp-institut.fr/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://acp-institut.fr/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://acp-institut.fr/images/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • http://acp-institut.fr/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://acp-institut.fr/images/minecraft-free-download-iphone_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
font_00_sfnt_off00002bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF2 22092 bytes
SHA-256: 61f3e04b6bb83d774a4c1a2267fa93599b1f1af39e9c1f665177c556fde95098
font_01_sfnt_off00005cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB3 18672 bytes
SHA-256: fcf161d812b4feaa3e2bf8e8c417d8656b3909a46e27a4c0a1d90eda073f6fc6