Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0bb277262d493a4…

MALICIOUS

PDF

41.3 KB Created: 2021-04-27 05:14:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 95ed50c5be194f2357c7103980c94c96 SHA-1: 0aa3d1cd03446b71ba680ec00faada983f777bc9 SHA-256: e0bb277262d493a45328aff36ea14577e6515cafae64439e5c0e260b19ef031b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body, though heavily corrupted, also contains embedded URLs that are likely part of the same malicious campaign. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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.xyz/app/431946152/how-hacks-for-trading-pet-simulator-roblox-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/roblox-admin-hack-adopt-and-raise-a-cute-kid-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-military-simulator-how-to-use-hacking-device.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-accounts-v3rmillion.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-cheat-free-robux.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-hack-stats-in-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-skins-free-download-fnaf.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-download-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-generator-2021-hack.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-noclip-cheat-engine-jailbreak.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hack-week-roblox.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
stream_003_off000040ca.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40CA 25360 bytes
SHA-256: 92320fb4551d78a2f80b1fac3fadf06260a50060f385d511d8cb2146e59c4d51
font_01_sfnt_off00007b6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6B 19748 bytes
SHA-256: 6c0bbebda90c609fc9c048acf6a02114e488cc2af73cf691b59e600733997de9

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