Malicious PDF — malware analysis report

Static analysis result for SHA-256 c414e22d1c4a9206…

MALICIOUS

PDF

34.5 KB Created: 2021-06-29 15:36:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bd79c23a30b121510376be80347ad2ca SHA-1: 86590ee879f0389b5808c9bbb441fc072b91a2e9 SHA-256: c414e22d1c4a920667d9451ecd43f7796056cbf66d9f3a34a28b0989240297f6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents itself as a 'hack' for the game Roblox, using lures like 'Click here to download' and instructions for password-protected archives to trick users into downloading a malicious payload. The ML classifier strongly flagged this PDF as malicious, and numerous embedded URLs point to suspicious download locations. No scripts were extracted, but the combination of lures and external links indicates a likely download and execution attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/boku-no-roblox-hack-quirk-vermillion-game-hack
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-hack-roblox_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-hack-game_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/bloxburg-free-on-roblox_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/blackhawk-roblox-free_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/free-group-generator-for-roblox_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/free-coin-master-cards-link_GM406889139.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/microsoft-bing-free-robux_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/robux-no-verification_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/how-to-get-roblox-credit-for-free_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/admin-for-roblox-hack_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/coin-master-hack-for-ios_GM406889139.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/robux-hack-just-put-user_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/free-robux-please_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/robloxcom-free-kkk-k-k-k-k_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/free-roblox-accounts-with-passwords-2021_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/money-cheats-sims-jailbreak-roblox_GM431946152.pdf
    • http://bbalitvet.litbang.pertanian.go.id/library/repository/free-minecraft-printables-food-labels_GM479516143.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-hoodie-free_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/earn-free-robux-com_GM431946152.pdf
    • https://bbalitvet.litbang.pertanian.go.id/library/repository/roblox-hacks-hack-de-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eeb.bin
72ec0c59e41293b5e80e0835875aec3deac466f776ddc33a317be701c7bd2a50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEB 22364 bytes
font_01_sfnt_off0000608b.bin
a83461bfdae620b5898b5cdfa074da5a7c1c6a30e2f2c7e8e887ec82e75a5341		 pdf-font-stream PDF embedded font (sfnt) at offset 0x608B 19468 bytes

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