Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ae6ccc66320dfb9…

MALICIOUS

PDF

33.9 KB Created: 2021-07-20 00:40:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 00a5a0237d2538a86c4d006860b5ab19 SHA-1: d2e8eb07ca1109822b7ef2dd65d836e4b3e0011a SHA-256: 0ae6ccc66320dfb97a8f06086c913cd8bb093bb234b76f4df4cf71f7dde4b2fc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for a 'free Robux generator' and includes a direct link to a suspicious URL. The document body and heuristics indicate a social engineering tactic to trick users into visiting a potentially malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to a malicious resource, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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-no-human-verification-no-survey-game-hack PDF link annotation
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mariyadl.sch.id/__statics/gudangsoal/files/robux-hack_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_off00002dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DEC 22324 bytes
SHA-256: 34bfeeffc9202b71163fd8d9f65df870b5bc7fdfc1f4dbe2d17dc9e5fbdfe8e5
font_01_sfnt_off00005f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7B 19340 bytes
SHA-256: eb1e8621334ed51a94bbc255bf386eec5599657d3bf0a8f729de6b7a7c130168

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