Malicious PDF — malware analysis report

Static analysis result for SHA-256 30948f98fe5d9d14…

MALICIOUS

PDF

42.2 KB Created: 2021-05-13 15:48:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c48fb74a7677bd59eeb8590ec59b231b SHA-1: 419e31f71af4d70256d6717a80407b133500c3b3 SHA-256: 30948f98fe5d9d14f35d69b733bd82418a4cccff00a9703a594f927c9fd3bc43
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous external links, forming a link farm designed to direct users to pages offering game hacks and cheats. The primary URL, 'https://netcdn.xyz/app/406889139/hack-coin-master-no-human-verification-game-hack', and the extensive list of SEO-optimized PDF links suggest a malicious intent to distribute potentially harmful content or lead users to phishing sites. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/hack-coin-master-no-human-verification-game-hack
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/minecraft-pe-apk-free-download_GM479516143.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/get-free-coin-master-coins_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/how-do-we-get-free-robux_GM431946152.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/roblox-free-clothes-hack_GM431946152.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/coin-master-free-spins-today-39_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/minecraft-pe-hack-client-ios_GM479516143.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/coin-master-free-coin-and-spin-app_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/free-modded-minecraft-server-hosting_GM479516143.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/easy-way-to-get-free-robux_GM431946152.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/minecraft-116-apk-download_GM479516143.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/minecraft-windows-10-hacks_GM479516143.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/cm-daily-spins_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/coin-master-money-hack_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/coin-master-links-to-free-spins_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/free-roblox-scripts_GM431946152.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/free-robux-no-email_GM431946152.pdf
    • https://elma.mtsn8jkt.net/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004995.bin
495ac5fdbea640acdec69edbb49d03acc3788f35c95f006a7d972068e5b7925d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4995 24924 bytes
font_01_sfnt_off00008293.bin
0e9786cf659f094cfb0b817202e636e55ec5bd4509ee7608a9da40f03466da0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8293 18248 bytes

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