Malicious PDF — malware analysis report

Static analysis result for SHA-256 27242009372267a7…

MALICIOUS

PDF

35.4 KB Created: 2021-07-07 21:49:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0110ecb40f32f70aa7740e54de07e725 SHA-1: 41a6f9a2ebace3d533dc89a8288d851c01ca102d SHA-256: 27242009372267a748da3c64b1c8a7d3ad1a7871506ae8754552aee6875797ce
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for linking to a game hack lure, specifically directing users to 'http://netcdn.tw/app/479516143/aternos-free-minecraft-server-game-hack'. This URL is presented as a way to get free items for games like Minecraft and Roblox, indicating a social engineering tactic to trick users into visiting a potentially malicious site. The ML classifier also strongly flagged this PDF as malicious.

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/479516143/aternos-free-minecraft-server-game-hack PDF link annotation
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/are-eny-bo-tys-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-and-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-app_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36B9 22340 bytes
SHA-256: 7501cda791d19f5fcbf3cf98ad9dbc38c5210b7d3d51bd0faf6145ab3f1a1957
font_01_sfnt_off00006842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6842 18112 bytes
SHA-256: 26876140927a3906902dd64e2dc8e0c32e7e876521c7e838639d73c9f18b3cb1

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