Malicious PDF — malware analysis report

Static analysis result for SHA-256 364a6f4726a76188…

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 16:37:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6d953e86ac3e51bee517e90241ce307b SHA-1: 9f71d12ec5181ce0f274e74fabe2844903ff3132 SHA-256: 364a6f4726a76188a2ee240f1f1741453bf2dbe4b8ced0094bd27db91eaab96f
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a document body that attempts to lure the user into downloading files related to game hacks and free in-game currency. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs, including one pointing to a raw IP address, indicates a high likelihood of a malicious download or exploit delivery. No scripts were extracted from this sample, but the overall structure and content suggest it is a phishing lure designed to trick users into downloading further malicious content.

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-hacks-for-mac-game-hack
    • http://110.78.114.242/ckfinder/userfiles/files/free-roblox-treasure-hunt-app_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/free-robux-codes-2021-real_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/hack-to-make-you-move-in-roblox-survivour_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/free-robux-farm_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/coin-master-free-spins-today-daily-links_GM406889139.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/free-chest-coin-master_GM406889139.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/coin-master-heaven-links_GM406889139.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/free-robux-codes-generator-no-verification_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/free-spins-coin-master-site-wwwquoracom_GM406889139.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/how-to-get-free-robux-not-a-scam_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/coin-master-2021-free-spins-link-today_GM406889139.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/free-robux-png_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/roblox-hack-game_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/roblox-free-robux-generator_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/www-roblox-com-free-robux_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/how-to-hack-other-pples-stuff-on-roblox-mm2_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/roblox-hack-me-robux_GM431946152.pdf
    • http://110.78.114.242/ckfinder/userfiles/files/coin-master-daily-free-spins-link-haktuts_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032d9.bin
16a0f67769f46a31fde85408970fb9760b216e0bb1e73d8127be4c77d5028082
pdf-font-stream PDF embedded font (sfnt) at offset 0x32D9 22732 bytes
font_01_sfnt_off000065bf.bin
15ad6bd526af772979e9ee6c7edeaaa41117d7f63bc2282984e036d9d48fb1db
pdf-font-stream PDF embedded font (sfnt) at offset 0x65BF 19016 bytes