Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e7ed2dc11fb180…

MALICIOUS

PDF

32.5 KB Created: 2021-06-26 23:28:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b5577194ab67c9e5b28875503a034405 SHA-1: 97220b396e9af13bd6e48b9848a137dc92aa1146 SHA-256: 67e7ed2dc11fb1803a2bcc06911fdcaab2fd0db168a26df6d82fe43e704545f4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on luring users with promises of game hacks for popular titles like Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were directly extracted, the presence of embedded URLs and the ML classifier's high confidence suggest the document is designed to redirect users to malicious sites, likely for malware distribution or phishing.

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.co/app/431946152/roblox-badges-hack-game-hack PDF link annotation
    • http://parsbaft.com/images/robux-free-hack-xyz_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-roblox-pokemon-universe_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-free-green-shirt_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/are-there-any-actual-robux-cheats_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/rbx-hut_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-noclip-cheat_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-givaways_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/hackeando-mi-saldo-de-roblox-sin-pagar_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
font_00_sfnt_off00002ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD0 21652 bytes
SHA-256: 130bca5b9439aedd271ab6b3ff37031c7140c65cfbab2d5fc31e13a91044e90f
font_01_sfnt_off00005a23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A23 18828 bytes
SHA-256: 4f55b756fb84c2ab4b522e3210f1cde935db7a06c873c1ede4c644566e6774fc

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