Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e089dd202007a0e…

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 00:11:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b8bca2fce985bc5646b64bb959c42ef2 SHA-1: 22157fd5691e8fc91dedb8c4b8c573957c376a8c SHA-256: 2e089dd202007a0ee7c36bd1c379266725e4b845b47caed93b752bb4a32b3168
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a large number of external links, many of which are designed to appear as download pages for popular games and virtual currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of such links, and the ML classifier strongly suggests malicious intent. The primary URL, http://netcdn.tw/app/479516143/minecraft-free-reddit-game-hack, likely serves as a landing page for a malicious download or exploit.

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.tw/app/479516143/minecraft-free-reddit-game-hack
    • http://perpustakaan.pa-jember.go.id/repository/template-roblox-shirt-free-shipping_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/how-to-get-free-roblox-clothes-no-bc_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/roblox-free-robux-game-link_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-codes-no-verification_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/daily-free-spins-coin-master_GM406889139.pdf
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdf
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-spin-and-coin_GM406889139.pdf
    • http://perpustakaan.pa-jember.go.id/repository/free-roblox-account-generator-with-robux_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/games-that-give-you-free-robux-2021_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/roblox-finak-stand-cheat_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-generator-no-survey-no-download-2021_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/robux-com-roblox_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/how-to-get-free-admin-in-roblox-life-in-paradise_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/free-roblox-hacks-2021-german_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/adopt-me-roblox-hacks_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/free-spin-card-exchange-coin-master_GM406889139.pdf
    • http://perpustakaan.pa-jember.go.id/repository/hcbb-roblox-hack_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-codes-9-3-19_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/hack-roblox-robux-jailbreak_GM431946152.pdf
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-hack-ios-without-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003470.bin
57d26c1255a2688002b616c4ec8ed2861e352ebaa10f90d84678a2fd7f71a35f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3470 22128 bytes
font_01_sfnt_off00006529.bin
643495630a0e2882763c76801d421163758b25dda5a584bed505c907634fa296		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6529 18028 bytes

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