Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec182ce345d4218…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 06:33:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a0a486714deb94a04556104277cd651b SHA-1: f7d83240050419fe1eb354ee47f3f8ec36676df8 SHA-256: 7ec182ce345d4218948a4ac3d99f7c407560f7d9fc76cb291fde3a544b6666c0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, presenting itself as a "Free Robux" generator to entice users. It contains a significant number of external links, forming a link farm, which likely redirects to malicious or unwanted content. The presence of embedded URIs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://netcdn.xyz/app/431946152/free-robux-real-game-hack
    • https://www.tdbaska.hr/files/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://www.tdbaska.hr/files/minecraft-hack-2021_GM479516143.pdf
    • http://www.tdbaska.hr/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdf
    • http://www.tdbaska.hr/files/coin-master-pc-game-free-download_GM406889139.pdf
    • https://www.tdbaska.hr/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://www.tdbaska.hr/files/roblox-free-no-download_GM431946152.pdf
    • https://www.tdbaska.hr/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdf
    • http://www.tdbaska.hr/files/free-coins-2021-coin-master-link_GM406889139.pdf
    • http://www.tdbaska.hr/files/best-free-minecraft-hacked-client_GM479516143.pdf
    • https://www.tdbaska.hr/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
    • https://www.tdbaska.hr/files/coin-master-free-spin-27_GM406889139.pdf
    • https://www.tdbaska.hr/files/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://www.tdbaska.hr/files/free-robux-working_GM431946152.pdf
    • https://www.tdbaska.hr/files/robux-codes_GM431946152.pdf
    • https://www.tdbaska.hr/files/is-roblox-free-on-nintendo-switch_GM431946152.pdf
    • https://www.tdbaska.hr/files/coin-master-hack-ios-no-verification_GM406889139.pdf
    • https://www.tdbaska.hr/files/minecraft-free-ios_GM479516143.pdf
    • https://www.tdbaska.hr/files/hacks-para-roblox_GM431946152.pdf
    • http://www.tdbaska.hr/files/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • https://www.tdbaska.hr/files/how-to-get-roebucks-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a55.bin
85c53ef78b420c0d87b0172aa0aba9965b98686da2a20f56ad95e4ad7e05d55d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A55 25796 bytes
font_01_sfnt_off000086eb.bin
0bff543ee19f4ca1641aaad3399cdc0a52c610caf2abd08cd8655404047fbeff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86EB 18316 bytes

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