Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe814f222d4b04ff…

MALICIOUS

PDF

33.9 KB Created: 2021-07-03 15:18:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 49dd68dfdf5c9473df9a5d273f2cb770 SHA-1: 294e867fa9d75469849bd7b3658a50f14a3eed04 SHA-256: fe814f222d4b04ff3d868d9de6f50e484078cdfdb09b404403e27b3212547c40
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game hacks, specifically referencing 'Robux' and 'Coin Master', directing users to a suspicious URL. This indicates a phishing or scam attempt designed to trick users into visiting a potentially malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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/flame-gg-free-robux-game-hack PDF link annotation
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/roblox-game-pass-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-with-lucky-patcher-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/roblox-cheat-pubg_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/a-discord-server-that-gives-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/hacking-roblox-discord_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/hacks-para-traspasar-paredes-en-ccualquier-juego-de-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/robux-hack-code-in-inspect-element_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/robux-now_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/coin-master-hack-root_GM406889139.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-t-shirts_GM431946152.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • https://elearning.min1sleman.sch.id/__statics/gudangsoal/files/roblox-rape-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_off00002e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E0B 22184 bytes
SHA-256: 53d28e6fd91054815d83baa0cb7a53027067bbd092da55e7a90111e836fc4845
font_01_sfnt_off00005f51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F51 19052 bytes
SHA-256: 0e5acbd67c2151e2d8a0f290c50b75584f3082951c962a1c817502256c0c0098

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