Malicious PDF — malware analysis report

Static analysis result for SHA-256 86dff269c592ef3d…

MALICIOUS

PDF

48.6 KB Created: 2021-06-03 07:50:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cdaba2fc32d6cbba58b7fe4c57b4cc71 SHA-1: 46845d0fccc89d30db730885f72fed5ffcd76045 SHA-256: 86dff269c592ef3d9e97e3e5ceb7b75231e9005e1947cc83ecc6c8273400ec00
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to external PDFs related to game hacks, specifically for 'Coin Master'. The document body also includes a URL that appears to be a direct download link for a 'Coin Master Code For Free Spins'. This suggests the document is designed as a lure to trick users into downloading potentially malicious content, likely a hacking tool or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.online/app/406889139/coin-master-code-for-free-spins-game-hack
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/hack-coin-master-android-game_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-free-things-on-roblox_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/hack-card-collection-coin-master_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/free-spins-coin-master-hack_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-hack-without-verification_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/roblox-builders-club-free_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-spin-hack-apk_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/roblox-promo-codes-2021-robux_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/2021-free-spins-coin-master_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/wwwcoin-master-hack-apk_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/free-robux-come_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/minecraft-hacks-18-9_GM479516143.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-get-free-robux-for-free_GM431946152.pdf
    • http://perpustakaan.pa-dompu.go.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdf
    • http://perpustakaan.pa-dompu.go.id//repository/free-spins-coin-master-no-survey_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005211.bin
5f4068e01219b24cd6bf2c18ca476e825556458ab6d468e2e9a921b2e9539d89		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5211 24412 bytes
font_01_sfnt_off00008a0c.bin
d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0C 7332 bytes
font_02_sfnt_off00009c24.bin
4a03a9d44c164768d834a7fabe993e3d55008b9c253aea1e1300b795f74bd62a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C24 18060 bytes

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