Malicious PDF — malware analysis report

Static analysis result for SHA-256 951fb97a9bfaeb71…

MALICIOUS

PDF

32.4 KB Created: 2021-07-19 17:40:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e149f9e835205b6329c6d27206b9a6b3 SHA-1: c42a33bec0de8a7a9ce0f6ba4bf5e1962ad59ff8 SHA-256: 951fb97a9bfaeb71cb3ebbf7806303ab716b32c8b0a6217336819f5f78daef3f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to game hacks and generators, directing users to the URL http://netcdn.tw/app/479516143/how-to-setup-a-minecraft-server-for-free-game-hack. This URL is associated with a high-risk heuristic for game hack redirects, indicating a likely attempt to trick users into visiting a malicious site. No scripts were extracted, but the presence of multiple related URLs suggests a phishing or scam campaign.

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-setup-a-minecraft-server-for-free-game-hack PDF link annotation
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learning-manberau.com/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-mac_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_off00002c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C49 21856 bytes
SHA-256: 90469f24dc039f7fe4c59ba31f3751727b861334f0896c18bec7450e95549fec
font_01_sfnt_off00005c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C66 18304 bytes
SHA-256: b0360e651ad81bf5acbb1fd73200378f36351cb2aebcef0077014d987ef32c64