Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e9266d75e196ef…

MALICIOUS

PDF

33.5 KB Created: 2021-06-23 00:09:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 37db09365d51d630ab7d8037bf952fd1 SHA-1: 1d14b990a5f5b81751d070de6c7b9cb0c68304ed SHA-256: d7e9266d75e196ef4a09a0574edf6282795f8e02e1ab12a0e82123de095214c8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and generators, directing users to a suspicious URL. This suggests an attempt to trick users into downloading malware or visiting a phishing site. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of 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/479516143/free-op-minecraft-servers-game-hack PDF link annotation
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-get-free-diamonds-on-royale-high-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/hack-any-roblox-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/comment-cheat-surcheat-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/roblox-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_off000031b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B8 21472 bytes
SHA-256: b6646aa3c384ec77e6493810f012541927e0a349e6c55a8a4b74c9e7c1d14811
font_01_sfnt_off0000607f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607F 18148 bytes
SHA-256: 09b378257ae92cafd0d3c1f5f7a36903dc8b82a48bbd3e05dc40a1258008c31b

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