Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b9632edcc9dddb9…

MALICIOUS

PDF

33.5 KB Created: 2021-06-18 18:56:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 847edb4cd8957515c065ae136e54a18b SHA-1: c9eec57b5d40893ae800174e2c2f6f18d9ca0580 SHA-256: 1b9632edcc9dddb98e00fb78d8f9af45110b8d59a62ed1e6e74e59f75d012886
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, "CLICK HERE TO ACCESS ROBLOX GENERATOR", designed to trick users into visiting malicious websites. The primary URL, http://netcdn.co/app/431946152/free-draw-roblox-discord-game-hack, is associated with a "free generator / game hack" lure, a common tactic for distributing malware or conducting phishing. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect users to malicious content, likely for credential harvesting or malware delivery.

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/free-draw-roblox-discord-game-hack PDF link annotation
    • http://killebergsridsport.se/images/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/pubg-uc-top-up-center_GM1330123889.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-get-tiktok-famous-free_GM835599320.pdfIn PDF document text
    • http://killebergsridsport.se/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/robloxcom-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-robux-games-in-roblox_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDD 21760 bytes
SHA-256: 9b501fb9b47bf96a23b71c06d507a9badb9daeb1dbfa0f785671151db276b53f
font_01_sfnt_off00005dbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBF 19088 bytes
SHA-256: 184ae97a1f41713ae8d811bb2b8071b0e23f43689b27539cb2629bc91caa88d6

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