Malicious PDF — malware analysis report

Static analysis result for SHA-256 27e11ef15eb171b7…

MALICIOUS

PDF

44.3 KB Created: 2021-05-10 18:01:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c4018f1e10cd1e60ed337e4eb832c1b8 SHA-1: ed8b3e0ca026e70f86e8f5edb9ec48add600bf6e SHA-256: 27e11ef15eb171b7085bcffe01d9cc2a4d495dd130b6292568ae6004aca77441
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free Robux' or game hacks to entice users. It contains a high number of external links, many pointing to game-related resources, suggesting a link farm or redirection scheme. The primary URL, https://netcdn.xyz/app/431946152/free-robux-no-apps-game-hack, is likely the initial point of compromise, leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://netcdn.xyz/app/431946152/free-robux-no-apps-game-hack PDF link annotation
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/girl-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/earn-roblox_GM431946152.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://kkmman.e-learningman1bitung.com/__statics/gudangsoal/files/free-texture-packs-for-minecraft-pe_GM479516143.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_off00004c8d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C8D 26860 bytes
SHA-256: ae4dec094ff556f2c5b6d7180787b18b321fa0ea1a72e4e6fb05846bd5338449
font_01_sfnt_off00008b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B45 18192 bytes
SHA-256: dd781f2eaffddff6619a7729b763fabd5b8c4a088eef07f4c149f41bf202d502

Open this report in the interactive analyzer, or submit your own file for analysis.