Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eeb6cce3cc5441f…

MALICIOUS

PDF

41.4 KB Created: 2021-04-27 11:17:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 15f8ff240807dbe55daf329e2b6ad356 SHA-1: a9dd518d20d263b78e7e03ac288f7f6d042e3a2a SHA-256: 2eeb6cce3cc5441fc98f614bbe9cd4adaa7cc4d2ac9dd49c9bdc6516fbe0d0dc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-to-change-roblox-name-free-2021-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/roblox-hack-tool-no-survey-no-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-become-a-roblox-hacker.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/robux-hack-generator-pc.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-real-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-websites-for-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-catalog-items-on-roblox-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-cheat-engine-mac.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-no-human-verification-2021-or-survey-no-scam.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-nonsense-diamond.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-hack-on-roblox-assain.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_off000041c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41C5 26164 bytes
SHA-256: fc06296f6f0b64976ee9596512a4485c9a86c3d688808274a90dbc2eb36fffe7
font_01_sfnt_off00007c6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6D 19456 bytes
SHA-256: ca6833807ed331d2ba38511ffec4a7df75f76e74264a055b7fd5b31d0c71bbca

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