Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e97f2544b4bb288…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 12:19:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6c127c014b0e0d9fcd4a6aedad1a20f3 SHA-1: 414815c2e389c55fea4f5bc29e50fd451f6df43b SHA-256: 2e97f2544b4bb28839031902ee53af0b3c52319c6ba9570e5b6175153bf2a5a2
102 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a malicious lure, employing a large number of external links to SEO-optimized content related to game cheats and hacks. The presence of a 'download button' heuristic further suggests an attempt to trick users into downloading malicious files. The ML classifier strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or malware distribution scheme.

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/www-free-robux-de-game-hack
    • http://opac.ekonomi.up45.ac.id/repository/http-bit-ly-coin-master-hack_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-free-link-facebook_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdf
    • http://opac.ekonomi.up45.ac.id/repository/how-to-get-coin-master-card-free_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://opac.ekonomi.up45.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdf
    • http://opac.ekonomi.up45.ac.id/repository/how-to-hack-coin-master-facebook_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/flying-in-roblox-hack_GM431946152.pdf
    • http://opac.ekonomi.up45.ac.id/repository/minecraft-java-edition-download-free_GM479516143.pdf
    • http://opac.ekonomi.up45.ac.id/repository/roblox-apk-hack_GM431946152.pdf
    • http://opac.ekonomi.up45.ac.id/repository/get-free-cards-coin-master_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/free-coin-master-spin-app_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-hack-tool-india_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/get-free-tiktok-likes_GM835599320.pdf
    • http://opac.ekonomi.up45.ac.id/repository/ios-coin-master-hack_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-free-spins-link-cheat_GM406889139.pdf
    • http://opac.ekonomi.up45.ac.id/repository/free-robux-codes-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e89.bin
0e15752f1f3a43d97de107216addf3ebe7471e507112961c239817662232abb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E89 22172 bytes
font_01_sfnt_off00005fa0.bin
daaf129af4a5ac3f8c045ed9aebebe1c3b0534d71b98ebc90c094ea1816cd78a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA0 19244 bytes

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