Malicious PDF — malware analysis report

Static analysis result for SHA-256 9526ff159f0727bd…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 08:19:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0d04efeff93d82f7a7dfed0741838d3d SHA-1: aaf4df4dce75f2472974d9acdfba74f54fecab7e SHA-256: 9526ff159f0727bd3024ed762311b60f921dcba56730759d7d9a5a6328f49eca
82 Risk Score

Malware Insights

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

The PDF document contains multiple links that lure users with promises of game hacks and generators, such as 'Roblox Hack Me'. These links direct to external websites, indicating a likely attempt to lead users to malicious content or phishing pages. The presence of a 'Download Button' heuristic further supports the malicious intent of encouraging user interaction with these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/roblox-hack-me-game-hack PDF link annotation
    • http://educhina.mn/editor/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/unlimited-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/robux-survey_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/tiktok-free-money_GM835599320.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/tryrbx-site-free-robux_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
stream_004_off00004dde.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DDE 26344 bytes
SHA-256: d9e060d0e425a6958a1db1e8681ef3a1f5af73db4c4c46a0eab6ce6349ca722b
font_01_sfnt_off000089c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89C2 18376 bytes
SHA-256: aef395c884b1121fa113f915db4056a7b0027cd471dc4d96a5cdd03c50f60cf3

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