Malicious PDF — malware analysis report

Static analysis result for SHA-256 04c5653bdff61b65…

MALICIOUS

PDF

45.2 KB Created: 2021-06-09 00:01:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4ce0ed9bfef24174f51a3789668e1271 SHA-1: ad141116bd8d1cbcfdc20652228301e1cd383626 SHA-256: 04c5653bdff61b6529caa854f375f5cd742ec138775102a70bf19aae40074c4e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links disguised as game hacks and generators, a common lure for users seeking cheats or exploits. The primary link, 'https://netcdn.tw/app/431946152/simple-roblox-hack-scrpits-2021-pastebin-game-hack', and numerous others hosted on 'yogaschooldecypres.be' likely lead to malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at tricking users into downloading further malware or visiting phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/simple-roblox-hack-scrpits-2021-pastebin-game-hack PDF link annotation
    • http://yogaschooldecypres.be/images/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/how-to-get-free-robux-on-roblox-2021-december_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/ben-10-roblox-free-games_GM431946152.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/free-coin-master-hack-no-verification_GM406889139.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_off0000536c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x536C 24840 bytes
SHA-256: 6a125910d04356ee7d81a423243a4b4217cfba7437ee786ada940a2e6eb6a536
font_01_sfnt_off00008a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A88 19400 bytes
SHA-256: caa136071d3f9840377c01adea686a75f47516e98fde1679f77d9232af9deef6

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