Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f6be83001eeb86…

MALICIOUS

PDF

36.2 KB Created: 2021-07-04 03:07:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 49e4eb92d855428eb10a5bf4cdfbf123 SHA-1: c8dbd207bc5c74211582edecbd5d7024c97f7006 SHA-256: 00f6be83001eeb86e5ac8c14de74b5cb0b9bc9f280e42111997041927d494074
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a primary external URI, all pointing to websites offering game-related hacks and freebies. This suggests a lure to trick users into visiting malicious sites, likely for further payload delivery or credential harvesting. The ML classifier strongly supports the malicious nature of this PDF.

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/406889139/coin-master-free-spins-promo-code-game-hack
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/roblox-hack-game_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/earn-free-robux_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/robux-no-survey_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-free-link-blogspot_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/how-to-hack-games-using-check-cashed-not-roblox_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/hacks-for-roblox-prison-life_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-robux-hack-generator_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-2021-blogger_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/daily-free-spin-coin-master-link_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/easy-hacking-engine-for-roblox_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/minecraft-java-free-download_GM479516143.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/hack-card-collection-coin-master_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-download-ios_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-instant-catalog-item-roblox-2021_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/free-spin-and-coin-blogspot_GM406889139.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/roblox-hack-no-crash_GM431946152.pdf
    • https://ptun-denpasar.go.id/new/public/ckfinder/userfiles/files/coin-master-hacks-for-iphone_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003617.bin
0c6fe47ba031de2719583e71426cf646b503ab7861482269652c6c30eaeadd08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3617 22952 bytes
font_01_sfnt_off000069a8.bin
f19908f223f6d81612d6a2bf6f73a33e849f8235d54350b1f471ed781f00ccd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69A8 18760 bytes

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