Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fd0d646a4424a6d…

MALICIOUS

PDF

33.8 KB Created: 2021-06-20 20:24:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 318350957ffe59009b7ac73f08a8e3ba SHA-1: a180aafd7b294153e28272b0ae27b69c3cf57a54 SHA-256: 8fd0d646a4424a6d6232f2a10d6b95d8b32715eb3b9090e9af9b7ce94bd93c6b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a "DOC BODY" excerpt that explicitly mentions "Roblox Hack Users" and "CLICK". The heuristic firings indicate a PDF link farm and a ML classifier flagging the document as malicious. The presence of multiple external links suggests an attempt to redirect the user to download further content, likely malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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-hack-users-game-hack
    • http://magnipsor.su/images/free-daily-spin-coin-master-game_GM406889139.pdf
    • http://magnipsor.su/images/coin-master-hack_GM406889139.pdf
    • http://magnipsor.su/images/how-to-get-a-lot-of-robux_GM431946152.pdf
    • http://magnipsor.su/images/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdf
    • http://magnipsor.su/images/claim-free-spins-coin-master_GM406889139.pdf
    • http://magnipsor.su/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdf
    • http://magnipsor.su/images/is-minecraft-bedrock-edition-free_GM479516143.pdf
    • http://magnipsor.su/images/password-free-roblox-accounts_GM431946152.pdf
    • http://magnipsor.su/images/hack-boku-no-hero-academia-roblox-espaol_GM431946152.pdf
    • http://magnipsor.su/images/free-roblox-followers-generator-2021_GM431946152.pdf
    • http://magnipsor.su/images/how-to-get-free-outrageous-builders-club-on-roblox-2021_GM431946152.pdf
    • http://magnipsor.su/images/free-code-roblox-card-with-no-risk_GM431946152.pdf
    • http://magnipsor.su/images/inf-health-script-roblox-hack_GM431946152.pdf
    • http://magnipsor.su/images/minecraft-alt-accounts-free_GM479516143.pdf
    • http://magnipsor.su/images/roblox-what-am-i-drawing-how-to-cheat_GM431946152.pdf
    • http://magnipsor.su/images/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdf
    • http://magnipsor.su/images/how-do-i-get-free-robux_GM431946152.pdf
    • http://magnipsor.su/images/free-robux-no-verify-needed_GM431946152.pdf
    • http://magnipsor.su/images/free-roblox-clothes-2021_GM431946152.pdf
    • http://magnipsor.su/images/free-robux-no-verification-no-password_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f69.bin
17d7ddb6ca9b162a5ffb1f0b0467166c23ae0fd2c2f377c932651dd1004a2d40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F69 21972 bytes
font_01_sfnt_off00006011.bin
6cc9a2ff23ef3b0601b0fa79745ccd73dab90574cc3d0bd75a020729f13738d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6011 18656 bytes

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