Malicious PDF — malware analysis report

Static analysis result for SHA-256 891c681957f10266…

MALICIOUS

PDF

34.0 KB Created: 2021-06-18 19:34:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9dd80fc561de87eead451c45176db4a5 SHA-1: 3337887765214a6deb68f4e3b2fd38169a3fea46 SHA-256: 891c681957f10266a23c53a55d002042789cf10a7094d17a2494cc6fcad9aa93
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is designed to lure users into downloading potentially malicious content by advertising game hacks and cheats. The document contains multiple links, with a primary focus on 'http://netcdn.co/app/431946152/hacking-script-download-roblox-game-hack', which likely serves as a redirector to a payload. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure.

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/hacking-script-download-roblox-game-hack PDF link annotation
    • http://tileworld.com.au/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00002d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D56 22156 bytes
SHA-256: a566ff3acf477fe6260f41511d2a42b81216d7099aeb1e596762293c4cd9ef67
font_01_sfnt_off00005e8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8A 19376 bytes
SHA-256: 6573a6f2930dc1951f0b94d6973ce733e799b1730a70ceed4c6044172747c5f3

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