Malicious PDF — malware analysis report

Static analysis result for SHA-256 e59b0c0d29cfedf0…

MALICIOUS

PDF

35.4 KB Created: 2021-07-06 00:50:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7a5a793bd7ece777ffc09b4b300409be SHA-1: b3003511fc4c7e9aeadc3f1aba32c073bec6e4fd SHA-256: e59b0c0d29cfedf088c4a5b16cd1de7a483099aa635337f8c67fb7de1266e0a3
82 Risk Score

Malware Insights

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

The PDF document contains multiple links and a lure related to 'free Robux' and game hacks, indicating a phishing or scam attempt. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the presence of numerous URLs pointing to similar content strongly suggest the document's purpose is to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

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.tw/app/431946152/blox-supply-free-robux-game-hack PDF link annotation
    • http://sttlets.education/senayan//repository/tiktok-free-gas_GM835599320.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-speed-and-jump-hack-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hack-moccap-dancing-points-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cheat-engine-speed-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/cruise-ship-tycoon-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-always-day-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/exploit-download-free-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-hide-and-seek-extreme-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-a-free-animation-in-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-map_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-badges-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-free-coin-master-coins_GM406889139.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_off00003410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3410 22116 bytes
SHA-256: 978f5d9bd78088a5d68324935cf3b636b84d922e43d463e27fc11371c7b6082f
font_01_sfnt_off000064e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E8 19144 bytes
SHA-256: c941b9cd330ffca6848f3389b5cbc1876b0a4e3bd2ae57faafcb8fbf1ae02fb5

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