Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e512a5549f180fb…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 21:41:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: dc04bd3c17f99e26fe264f6240f0a9df SHA-1: 898ee0a750916f01e04597d0ed63a1ccb5006f3d SHA-256: 6e512a5549f180fb8e3b7ed7811b39251daa74ca02ac617723737add56a4dc45
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and references to game hacks and free currency, indicating a lure to download malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple links to potentially compromised sites reinforces this assessment. The document's content and structure suggest it is part of a phishing campaign designed to trick users into downloading malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/431946152/roblox-hack-scripts-pastebin-game-hack
    • http://110.164.163.187/ckfinder/userfiles/files/free-appsfor-coin-master-daily-rewards_GM406889139.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/how-to-hack-roblox_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/free-steam-codes-no-survey-robux_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/best-hacked-client_GM479516143.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/redeem-code-roblox-hack_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/minecraft-anarchy-server-no-hacks_GM479516143.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/all-free-items-in-roblox_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/free-cracked-minecraft-server-hosting_GM479516143.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/hexus-roblox-hack_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/minecraft-kill-aura_GM479516143.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/free-gift-card-codes-roblox-2021_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/roblox-hack-unlimited-robux_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/roblox-gift-card-free-codes_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/free-roblox-card-codes_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/minecraft-free-download-pc_GM479516143.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/blogspot-free-spins-coin-master_GM406889139.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdf
    • http://110.164.163.187/ckfinder/userfiles/files/get-robux-for-free-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_off00003003.bin
a72e8c40871ae563cc65059f2b55700b1302f8732681af5ccc6a034772edcfb0
pdf-font-stream PDF embedded font (sfnt) at offset 0x3003 22860 bytes
font_01_sfnt_off0000635c.bin
46b8535cd4ab0c6c32fa43c13492b1dbcacac03349de8f770ca192070773bb97
pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 19212 bytes