Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b200f5731a0a996…

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 10:48:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 14685bb4fa40a4366b8ec90c1c0bb2d1 SHA-1: 1574e050328e96d5c72db7cfc54cbb91091f0478 SHA-256: 5b200f5731a0a996af4f952de091462cb7ef83e1b90713bf178478704590c131
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link to a website offering 'free generators / game hacks', a common lure for malicious content. The ML classifier strongly flagged this PDF as malicious. The document body, though partially corrupted, contains URLs that reinforce the lure of obtaining free in-game currency or hacks, suggesting the primary goal is to redirect users to potentially harmful sites or downloads.

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.tw/app/479516143/how-to-setup-a-minecraft-server-for-free-game-hack PDF link annotation
    • https://cosmosocean.com.tw/upload/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/wurst-commands_GM479516143.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/free-robloxs-username_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/roblox-site-17-hacker_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/vex0rmillion-hack-roblox_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/how-to-hack-dragon-ball-z-revalations-roblox_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/how-to-get-free-robux-buy-inspecting_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/spins-coin-master_GM406889139.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/get-free-robux-no-codes_GM431946152.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • https://cosmosocean.com.tw/upload/files/compte-a-hacker-roblox_GM431946152.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_off00002f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4C 22252 bytes
SHA-256: ee5cb97e33b3d3e83b978b722bffd75ab8094f7c157c9063da371e70fbb48ec7
font_01_sfnt_off00006077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6077 18592 bytes
SHA-256: 4b40ee072286608b3d74a0cb4ed346ad8a5977f91bfb22046a7a3c91dcad46b1

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