Malicious PDF — malware analysis report

Static analysis result for SHA-256 80006c1f453fbf8a…

MALICIOUS

PDF

47.2 KB Created: 2021-05-13 22:50:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f878dd7af1983aa2624c45d57f005c3a SHA-1: c93750ffd1a10dde9c82d7ae35753a85714ba559 SHA-256: 80006c1f453fbf8ab98220afbd90be9d569c6a5a2f4c0a8dbea688e64cb131bd
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which point to websites offering game hacks and cheats. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm or SEO manipulation tactic. The presence of a download button lure further supports the malicious intent of directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/bloxawards-com-earn-free-robux-game-hack
    • http://www.thalanghospital.go.th/UserFiles/File/coin-master-hack-apk-no-survey_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/the-coin-master-hack_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-get-free-robux-for-free_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-download-minecraft-java-edition-for-free_GM479516143.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-minecraft-skins_GM479516143.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/coin-master-hack-using-lucky-patcher_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/mcpe-master-hack-unlimited-coins_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/plug-toolbox-for-minecraft-free-ios_GM479516143.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/minecraft-hacked-client_GM479516143.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/100-free-spins-coin-master_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-hack-and-get-free-robux_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/coin-master-hack-for-android_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-roblox-accounts-2021-with-robux_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/static-moonactive-net-link_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-robux-app_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-hack-coin-master-game-without-root_GM406889139.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/wurst-minecraft_GM479516143.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-to-get-a-lot-of-robux_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/how-do-you-get-robux-on-roblox_GM431946152.pdf
    • http://www.thalanghospital.go.th/UserFiles/File/free-spins-coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049e1.bin
93750cf9627d01eb7921f51bc978b41ddc64eac829218aef0dcc03a6cd092e3a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E1 26300 bytes
font_01_sfnt_off00008776.bin
608f0dd4f6bfb6adbccec84228618ee8e4c9e09226d7330efb5300e499d1567f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8776 3608 bytes
font_02_sfnt_off000093fd.bin
ad6cfd8b97476ff22bd965746e6d59def3dc1c42c07a754b956efad1c533161c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93FD 18916 bytes

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