Malicious PDF — malware analysis report

Static analysis result for SHA-256 61083e99f7c29a3a…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 00:26:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c35ba306fa431c192352a14f097e8998 SHA-1: 6167dbfe6b31725780753189be9cf2d710f57abe SHA-256: 61083e99f7c29a3acd17afbeca6e07d1a497f7ebd982b37d4b94a54f015bcec5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to a suspicious URL. This heuristic strongly suggests a phishing or scam attempt designed to trick users into visiting a potentially malicious site. No scripts were extracted, but the embedded URLs and the 'game hack' lure are high-confidence indicators of 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.tw/app/431946152/free-robux-games-game-hack PDF link annotation
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-hack-bar_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/hack-electric-state-darkrp-beta-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/cute-roblox-faces-free_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/free-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/robux-codes-unused-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/roblox-cheat-engine-lua-scripts_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/robux-giver-free-site-robloxcom_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-obc-2021_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/roblox-raindrop-hack_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/roblox-airport-free_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/how-to-use-hacks-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/free-cam-script-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/app-robux-free_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/free-roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://elearning.madribmuplosorejo.sch.id/__statics/gudangsoal/files/roblox-glitches-and-cheats-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_off0000332c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332C 22500 bytes
SHA-256: 8c9e978b62f8a035178746bd3dc13c8463dcfb4e061b943ee86ec6eda7355ddd
font_01_sfnt_off00006573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6573 18976 bytes
SHA-256: 9cf25d4eac3a634b4e62a67958c7d0e686964c27f7673d9c7386bb6e1f5e78e0

Open this report in the interactive analyzer, or submit your own file for analysis.