Malicious PDF — malware analysis report

Static analysis result for SHA-256 3726fab5910e7aea…

MALICIOUS

PDF

45.8 KB Created: 2021-06-04 06:14:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5bdc51a0d12835c3dcf0eb634da283e7 SHA-1: aa2e656bc2528f67eb5f477be38c66c50403dd96 SHA-256: 3726fab5910e7aea5b2c54950bbf63fbc251c22bdff570656d47331d7b28a8a5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body, though heavily obfuscated, also contains references to game hacks and the primary malicious URL. The presence of multiple embedded URLs further supports the malicious intent of redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/hacks-fpr-roblox-game-hack PDF link annotation
    • https://digilib.widyagamahusada.ac.id/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-accounts_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_off00004fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA3 28544 bytes
SHA-256: a4ae34605b5546196ec3321a7f0a927ef8f449411edeebcb076de18772e734b2
font_01_sfnt_off00008fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE2 18524 bytes
SHA-256: a180ba14e9decc446da0e9fae1c03f9dc1854bbb6e464e5d92d83920a9b24c14

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