Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e2e05d12f38679…

MALICIOUS

PDF

36.0 KB Created: 2021-06-28 03:26:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1f013375af09fb1d5c7dc92731817dde SHA-1: fc3d4edfb342c1f72c505b297d6bfecaf52acbb3 SHA-256: b2e2e05d12f386793ca8e6860547d6c12f201ed025fbdf7ddb1406c59bb64cd7
102 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which are SEO-optimized and point to sites offering 'free' game hacks and currency. The primary URL, http://netcdn.co/app/431946152/hack-tool-roblox-pokemon-game-hack, suggests a direct download for a hack tool. This indicates a likely attempt to trick users into downloading malware disguised as cheats or free items.

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/hack-tool-roblox-pokemon-game-hack
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/hacks-for-roblox-scpf-games_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-robux-generator-2021-real_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-roblox-gift-card-codes-2021_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/roblox-free-dragon-ball-z-map_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-hack-spins-free_GM406889139.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-followers-for-tiktok_GM835599320.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-robux-no-verification-2021-ios_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-robux-2021-codes-without-human-verification_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/minecraft-free-online_GM479516143.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/get-free-robux-in-roblox-2021_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/cm-daily-spins_GM406889139.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/free-robux-get-com_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/how-to-get-2021-robux-for-free_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/freerobuxgenerator-trackid-sp006_GM431946152.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/minecraft-wurst_GM479516143.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/minecraft-free-ios-2021_GM479516143.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdf
    • http://jdih.ptun-denpasar.go.id/assets/CKImages/files/coin-master-hack-with-lucky-patcher_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003417.bin
2b5231d136ce7c1dc54b9f0dc7b91d6e5934c6b4dfbbd9539d4028bb304dd03e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3417 22952 bytes
font_01_sfnt_off000067c8.bin
7f39b7e9618f988daf0a2d246a6248e0bcfe14777fc55979b283d8014e74564e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67C8 19072 bytes

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