Malicious PDF — malware analysis report

Static analysis result for SHA-256 45884b0d60befa8a…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 12:27:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 71f97c7b027701ed78ca0ac177c1c718 SHA-1: cbba0858cacaa5c5ac73f2e49e3060057218b6fa SHA-256: 45884b0d60befa8abc98fa834fe0a8e21c19f2bc8b3cd012ff2ac66cde65b911
82 Risk Score

Malware Insights

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

The PDF contains a launch action that directs the user to a URL, likely to download a malicious script. The document body and extracted URLs indicate a lure related to free game currency and hacks for popular games like Roblox and Coin Master. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to exploit users.

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/script-for-free-admin-on-roblox-game-hack PDF link annotation
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/launch-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-hack-and-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/youtube-have-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/download-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-cheat-engine-62-noclip_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/roblox-eliminating-wall-hacks_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • https://www.levanajewelryclub.com/uploaded_files/userfiles/files/free-coin_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3273 22000 bytes
SHA-256: 0aa61b9e4734bdf32f95893275827eb30a53e7c18f5162754f3ea31011134c6f
font_01_sfnt_off00006308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6308 19484 bytes
SHA-256: 152301f602af557cb3be54c3115d5ce6ea3b661a3ebddb891e47289e602ffcf7

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