Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ee66c92b4837e4…

MALICIOUS

PDF

44.1 KB Created: 2021-05-03 04:02:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3a3ceef93236c64f719c35a51ac98ac7 SHA-1: 8be16f58f98a898e0b7f2131a1328cd974a36884 SHA-256: 62ee66c92b4837e46465152b3f4080401b10b241c17d11e344517e49f7a082e7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a lure related to game hacks and cheats, specifically for Roblox. The heuristic firings indicate that the PDF is designed to redirect users to external sites, likely for malicious purposes such as malware distribution or phishing. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9868

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-jailbreak-cheat-codes-and-hacks-for-samsung-game-hack PDF link annotation
    • https://fridaytravelnepal.com/userfiles/files/roblox-hack-no-verification-no-survey.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-2021k-robux-no-password-obby.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/buy-delta-lite-roblox-hack.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-free-robux-on-pc-windows-10-2021.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-hack-get-unlimited-robux.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-get-free-catalog-items-on-roblox-2021.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/rbxf-free-robux.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-hack-free-robux-website.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-builder-club-free-code.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-a340-free.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000041e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x41E3 25584 bytes
SHA-256: 5fbb0f48a644192b8fde7ca59f4b5fe796da32b6edd4f37a74f6981c5b065efe
font_01_sfnt_off00007c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C51 2848 bytes
SHA-256: 4737c2778a085e0cb49e73f3b054b1a71e3f40720d213b4bfda97f95a31bfbf1
font_02_sfnt_off00008612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 19764 bytes
SHA-256: c1739c39a0c341db88d4dd4f3aef98eb33da117b10bc290f429e644ea08dcfa8

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