Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c44ed9a0a5381c…

MALICIOUS

PDF

33.9 KB Created: 2021-06-27 05:23:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f1b8d5f4d41209b5250f04c74016512b SHA-1: 4dfdd8c3ff547394a5a11d5532525552c3194e9e SHA-256: 36c44ed9a0a5381c655e43208e6f526e29fdc88904f83dcbec881aafbce7c6b7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to external websites that are disguised as game hacks and generators. The document body and heuristics indicate a lure to download content, likely a second-stage payload. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous suspicious URLs supports this assessment.

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/431946152/descargar-menu-de-hacks-para-roblox-game-hack PDF link annotation
    • http://sttlets.education/senayan/repository/how-to-make-your-own-clothes-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/original-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/pokemon-go-free-games-online_GM1094591345.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/tiktok-free-gas_GM835599320.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-hack-october-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-rules_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/play-full-version-of-minecraft-for-free-no-download_GM479516143.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_off00002eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAB 21956 bytes
SHA-256: 3e3ca25a7dc01062e8e59c742e0789fad0d4fe32646a505dfc5041a008262d9b
font_01_sfnt_off00005ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED4 19316 bytes
SHA-256: 3e9b0f602bc7ed033306ec568af5950b762ebd387fd5ab02784a32b3ee3f51b8

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