Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2b311b01a0d80a…

MALICIOUS

PDF

39.7 KB Created: 2021-04-23 05:38:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 028b718cfec15352b88fd15cfdeeaf67 SHA-1: 557919eabd4eb02f09fe41c5861b2209c6875fb9 SHA-256: 3a2b311b01a0d80a65bb356286f1788f2fdd654b63b081b077811947b18b2134
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action button, all related to game hacks and generators, specifically for Roblox. The primary link, 'https://netsecure.pro/app/431946152/ultimate-driving-delancy-gorge-roblox-money-hack-game-hack', is flagged as a lure for a game hack. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence score suggest malicious intent, likely to redirect users to a site that hosts malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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://netsecure.pro/app/431946152/ultimate-driving-delancy-gorge-roblox-money-hack-game-hack PDF link annotation
    • http://sudamericarural.org/images/how-to-hack-roblox-jailbreak-2021-money.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-assassin-knives-hack.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-your-friends-roblox-account-2021.pdfIn PDF document text
    • http://sudamericarural.org/images/cheat-engine-scripts-for-roblox.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-admin-hack-download.pdfIn PDF document text
    • http://sudamericarural.org/images/free-robux-now-no-human-verification.pdfIn PDF document text
    • http://sudamericarural.org/images/2021-roblox-hack-no-adfly.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-website-for-free-robux.pdfIn PDF document text
    • http://sudamericarural.org/images/free-roblox-usernames-and-passwords-with-robux.pdfIn PDF document text
    • http://sudamericarural.org/images/roblox-jailbreak-free-vip-server-link-new.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_off00003da9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3DA9 24312 bytes
SHA-256: 99a16d4ce40530eefe59aead1586ed962a6bc91b7bd10e0e676f04ef5209bfa3
font_01_sfnt_off000074e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E0 19796 bytes
SHA-256: 074b931d8caf662c630ec4b40720fc63c9ed9a8a582aeba1b95f04c1acf25d7c

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