Malicious PDF — malware analysis report

Static analysis result for SHA-256 585e08adada0bfe7…

MALICIOUS

PDF

45.9 KB Created: 2021-06-03 05:42:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d18ece3bc16c32073cadee761ab9766e SHA-1: b83d561c075422e4f0ab44353ad5e2f77d4b3be1 SHA-256: 585e08adada0bfe7f19159098f164010939d7f964d260209b854c3349080fe54
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which point to SEO-optimized PDFs related to game hacks and free currency. One primary URL directly links to a "free mod apk coin master game hack". The presence of a "download button" heuristic further suggests a lure to download potentially unwanted or malicious software. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/free-mod-apk-coin-master-game-hack
    • https://library.stikeswnpalu.ac.id/repository/roblox-account-taker_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-spin-now_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/best-free-hacked-client_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/free-coins-on-coin-master_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/free-robux-sites-2021_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-links-for-free-spins-2021_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-cards-link_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hacks-for-iphone_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-app-android_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-hack-coin-master-ios_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/apps-for-free-robux_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/is-minecraft-free-on-xbox_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/get-free-robux-info_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-spins-link-june-2021_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/free-mod-apk-coin-master_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/roblox-hack-me_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050df.bin
7282f92902d7be6bfb29b18a5c3120ba617414771c91a39aea2318200d18e513		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50DF 28968 bytes
font_01_sfnt_off0000912f.bin
94a160b3eebda81a774dce60345efae5de7f6df629fda5b11a26048b94d99866		 pdf-font-stream PDF embedded font (sfnt) at offset 0x912F 18228 bytes

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