Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2a7001e4c98c652…

MALICIOUS

PDF

34.4 KB Created: 2021-06-27 01:34:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b1155fc7c4eecc72deb8eb11554f17f5 SHA-1: ba219bfdb852ddf701547b732028c37aee921f27 SHA-256: b2a7001e4c98c65259757825f791d061920d420e6e7cca9ff7caf04dc1c6631f
82 Risk Score

Malware Insights

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

The PDF document contains a launch action that directs the user to a URL offering free Robux and game hacks, likely a lure for malicious downloads. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent. No scripts were extracted, but the PDF's structure and content suggest it's designed to exploit user interest in free in-game currency to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Launch action high PDF_LAUNCH
    PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
  • 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/buy-robux-free-2021-game-hack
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/best-minecraft-hacks_GM479516143.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-free-items-2021_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/can-you-give-me-free-robux_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-coins-coin-master-link-2021_GM406889139.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-free-robux-website_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-hack-no-human-verification_GM406889139.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/play-minecraft-online-free_GM479516143.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/irobux-com-redeem_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-real-roblox-robux-genereator_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-ways-to-get-robux_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/minecraft-education-edition-free_GM479516143.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-free-coins_GM406889139.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/launch-roblox-hacks_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-free-items_GM431946152.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/need-free-spins-for-coin-master_GM406889139.pdf
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f95.bin
85fbb33326af28e22090373a381484749ab01ba5b2736a273a738ccc97aade9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F95 22036 bytes
font_01_sfnt_off00006063.bin
e03a46fba3515dab0dcf470c7e6035e5ea44668780ca69c8145871e6cd04bffa
pdf-font-stream PDF embedded font (sfnt) at offset 0x6063 19300 bytes