Malicious PDF — malware analysis report

Static analysis result for SHA-256 b15bd2ca0e8794d7…

MALICIOUS

PDF

33.9 KB Created: 2021-06-29 02:52:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 45b887be1866f094bd5d96e60caecd54 SHA-1: 806e7a0dbb59e2ec153a5a8fb628a2fb53310f40 SHA-256: b15bd2ca0e8794d7b5468a29e490e2abb7da99980bdd097c9b487d259e97fd3c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure, specifically referencing Roblox and Minecraft, to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/roblox-cheat-engine-cheat-table-game-hack, likely leads to a malicious download or further redirection. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure and numerous related URLs pointing to game cheats and hacks.

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-cheat-engine-cheat-table-game-hack PDF link annotation
    • http://stiepariperpus.web.id/sarjana//repository/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/gaming-app-cheats-com-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-hack-ulimited-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-bank-tycoon-money-cheats_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/como-hackear-a-una-persona-en-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-login-to-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-do-u-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/change-roblox-name-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-coin-master-coins-and-spins_GM406889139.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_off00002df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF8 22372 bytes
SHA-256: 0c4f6169c6ba0913f6feed31e373863a736195684e9805a24e5b451a915a0181
font_01_sfnt_off00005fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE4 18876 bytes
SHA-256: 20f815385a45c6067512d293ebb78154901127c67cf030a23e89ce71255186b2

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