Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f582969161ea13…

MALICIOUS

PDF

45.9 KB Created: 2021-05-16 19:03:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7f88812e428b29a3023cf86f3f0d650a SHA-1: 6a282ab7aa78592ee4f09689973a7c37f6495e73 SHA-256: 00f582969161ea133b3db8cbadf716b0d787b999acadd71862eee39d36c0d81a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to external resources. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the ML classifier flagged it as malicious with high confidence. The document likely serves as a lure to direct users to potentially malicious websites for downloading applications or engaging in scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/406889139/coin-master-free-spin-app-apk-game-hack
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-village-cost_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/today-free-spin-coin-master_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-generator-no-human-verification_GM431946152.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-games-download-free_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-2021-app_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-email-rewards-link_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-coin-spin-daily-link-net_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-flip-master-coins_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-roblox-accounts_GM431946152.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-spin-hack-trick_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/master-hack-coin_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-bedrock-edition-pc-free_GM479516143.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-no-human-verification-2021_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-skins-in-minecraft_GM479516143.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-today-2021_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/what-is-robux-in-roblox_GM431946152.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdf
    • https://penanggulanganbencana.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-cracked-apk-free-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004f7e.bin
7cd5cace803db3395e28c710b949e7a7add51ac36e57672f703fe509cae746ee		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F7E 24636 bytes
font_01_sfnt_off0000870d.bin
4a0975cb4ff59b90613a77ae23c76f45b98fe93665a9537e2ed5b6c7d8755f19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x870D 18056 bytes
font_02_sfnt_off0000a858.bin
e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA858 3264 bytes

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