Malicious PDF — malware analysis report

Static analysis result for SHA-256 9755815f0299cf72…

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 18:35:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3ee7f5ce6bd398daf4768019291b08aa SHA-1: 58c3ab26b365cdab674943716379ce25dd2007d4 SHA-256: 9755815f0299cf72c9a1281ed0064a903efb6ca054d2c45db63ef9a6b5d0f17e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and text referencing 'free Roblox usernames and passwords' and 'hacks', indicating a phishing or scam attempt. The presence of external URIs and the ML classifier's high confidence score suggest malicious intent. While no scripts were explicitly extracted, the document's structure and content point towards a lure for credential harvesting or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-roblox-usernames-and-passwords-game-hack
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-roblox-promo-codes-august-2021_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/hacks-on-robloxs_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-robux-site_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-roblox-scibt-pack-exploit_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-adopt-me-free-plush_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-card-collection-link_GM406889139.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-website-robux_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-codes_GM406889139.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/kuso-icu-roblox-hack_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/rewards-roblox_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/snxw-hack-roblox_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-hack-apk-35-33_GM406889139.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/www-robux-us_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/minecraft-for-free-apk_GM479516143.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-spin-coin-master-game_GM406889139.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdf
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-8-14-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003146.bin
b11b475ec71e1efcc240f50d226268ea1d179376367496c281da7e04fba409f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x3146 22080 bytes
font_01_sfnt_off00006205.bin
b4d7e0718cadd6570b52e100aa7612a9b6b6c25f53d59374595f6af98c828d97
pdf-font-stream PDF embedded font (sfnt) at offset 0x6205 19404 bytes