Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a2ea99021e892de…

MALICIOUS

PDF

41.0 KB Created: 2021-04-30 12:35:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 124f864ac795a2ad5bbe8efbab159a40 SHA-1: 0e83520c34a44cf57e2139587599aacd7d1e05fe SHA-256: 1a2ea99021e892def584e065af326d5dc5e23303f6c80f16f8950ffefacb4ad6
82 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one to 'roblox-hack-free-robux-pastebin-game-hack', which is flagged as a game hack redirector lure. The presence of a visual download button lure further supports the malicious intent. The document's content, though partially garbled, indicates a theme of game hacking and free currency, a common social engineering tactic.

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/roblox-hack-free-robux-pastebin-game-hack PDF link annotation
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/groups-that-give-free-robux-2021.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/free-robux-counter-for-roblox.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/pinapple-outfit-hack-roblox-royale-high.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/roblox-unlimited-fps-hack.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/how-to-hack-roblox-games-with-artmoney.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/free-roblox-card-codes-2021.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/how-to-get-free-bc-in-roblox-pastebin.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/roblox-hack-mining-simulator-rebhirt.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/how-to-hack-your-friends-account-on-roblox.pdfIn PDF document text
    • https://www.regaloscabalgatas.es/ckfinder/userfiles/files/how-to-hack-legend-of-the-bone-sword-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_off00004120.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4120 26148 bytes
SHA-256: 83c59ab4eefa11d2d6c7e9924c34b45e3cd8b6af4786b8f146f6c7b0ddbea052
font_01_sfnt_off00007cc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC9 18864 bytes
SHA-256: 2bc4ddd252ddc626dcb7b149db42f9a292a9e1d0efa58cc2167a77db86051182

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