Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6137733a7c753c7…

MALICIOUS

PDF

32.7 KB Created: 2021-07-19 07:45:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 95b72d3faf27219b188442b1c55b649d SHA-1: c33105d241bfeb14c30fb44820cbf1dd46c4de4d SHA-256: a6137733a7c753c7e25454ad23e562a993f0f2f84d6590d365ecea4d91f37536
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that mimic game-related content, such as 'how to download minecraft for free' and 'free robux generator'. The primary link, http://netcdn.tw/app/479516143/how-to-download-minecraft-for-free-game-hack, is identified as a lure for game hacks. The document body also contains a prominent 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action, reinforcing the social engineering aspect. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a malicious intent to redirect users to potentially harmful websites.

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/how-to-download-minecraft-for-free-game-hack PDF link annotation
    • http://livsgnistans.se/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://livsgnistans.se/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://livsgnistans.se/images/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://livsgnistans.se/images/tiktok-likes-for-free_GM835599320.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_off00002d8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8D 21888 bytes
SHA-256: f3e67907a1c5dd67952da60b55e6d2f4216cbaac294ace7845f7d5c6a314e469
font_01_sfnt_off00005da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA5 18292 bytes
SHA-256: 99621570461cd7d06d3aeee2d5a7201c5e27378a0102ff29a57c60fd25da4758

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