Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b2d2abb58cc6af…

MALICIOUS

PDF

35.7 KB Created: 2021-06-27 18:16:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 983fc1aa1189e5f6c6d85ead326d226a SHA-1: 0e38d110a19757ee9434d8849e1d0fb6aba8edb1 SHA-256: 30b2d2abb58cc6afd433f2b4ea7d7e0a25271eee0ea2cbd2c3992cfcc6b4af31
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are disguised as game hacks and generators for popular games like Roblox and Minecraft. The primary URL, http://netcdn.co/app/431946152/prototype-free-download-roblox-game-hack, is flagged as a lure for a game hack redirector. This suggests the document's purpose is to trick users into visiting malicious sites that likely host malware or phishing content. No scripts were extracted, but the presence of embedded URLs and the 'game hack' lure strongly indicate a malicious intent.

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.co/app/431946152/prototype-free-download-roblox-game-hack PDF link annotation
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/how-to-get-free-robux-without-money_GM431946152.pdfIn PDF document text
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/free-roebucks_GM431946152.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearningmtsn9jkt.net/__statics/gudangsoal/files/apps-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elearningmtsn9jkt.net/__statics/gudangsoal/files/roblox-hack-999999-robux-2021_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_off00003355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3355 22016 bytes
SHA-256: d927d995225475c6f9ef7335d722ad3416a65da2ea3fcfcdfdefd37c86e1036e
font_01_sfnt_off0000642b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642B 19768 bytes
SHA-256: e387903cdd37702ccec90793872e2bf02b2fed64544fd12dd247da473c9dc0d7